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BEGIN:VEVENT
DTSTART;VALUE=DATE:20200210
DTEND;VALUE=DATE:20270211
DTSTAMP:20260531T233024
CREATED:20200210T110815Z
LAST-MODIFIED:20250612T103614Z
UID:126725-1581292800-1802303999@www.a3veen.nl
SUMMARY:Solar Orbiter
DESCRIPTION:De Solar Orbiter (SOLO) is een ruimtemissie van de Europese Ruimtevaartorganisatie (ESA) en de Amerikaanse Ruimtevaartorganisatie (NASA)\, het doel is om een observatiesatelliet in een baan rond de Zon te brengen. \nDe onbemande ruimtesonde werd op 10 februari 2020\, om 4:03 (UTC) met een Atlas V-411-raket vanaf lanceercomplex SLC-41 op Cape Canaveral AFS gelanceerd. Vanaf een elliptische baan observeert de Solar Orbiter de Zon op dichte afstand\, tot maar 0\,22 AU (ongeveer een vijfde van de afstand tussen de zon en de Aarde)\, ofwel 48 keer de straal van de Zon. Dit maakt het mogelijk om foto’s te nemen van de zon op hogere resolutie dan ooit tevoren. Vooral de poolregio’s van de Zon zijn met de satelliet veel beter te zien dan vanaf de Aarde. Naast het fotograferen\, observeren en beter in kaart brengen van de Zon doet de ruimtesonde ook onderzoek naar de heliosfeer\, het gebied rond de Zon waar de zonnewind overheerst. De ruimtesonde wordt voortgedreven door een ionenmotor (Solar Electric Primary Propulsion). Deze zet met behulp van zonnepanelen zonlicht om in elektriciteit. Hiermee worden gasatomen elektrisch geladen. Als deze het ruimtevaartuig verlaten stuwen ze door hun reactiekracht het ruimtevaartuig voort. Dit betrekkelijk nieuwe type aandrijving werd met succes getest door de SMART-1\, een observatiesatelliet van ESA die van 2003 tot 2006 in een baan rond de Maan draaide. De Solar Orbiter is de opvolger van twee eerdere ruimtesondes naar de Zon\, de Ulysses (gelanceerd in 1990) en de SOHO (gelanceerd in 1995). Het oorspronkelijke besluit tot de Solar Orbiter-missie werd in 2001 genomen.[2] Na enkele jaren van voorbereidend onderzoek kreeg het programma in 2007 het groene licht voor de formele definitiefase. De Solar Orbiter is onderdeel van het HELEX (Heliophysics Explorers)-onderzoeksprogramma\, samen met de Parker Solar Probe van NASA die in augustus 2018 gelanceerd is en de Zon nog veel dichter benadert dan de Solar Orbiter\, tot maar 9 keer de straal van de Zon. NASA werkt ook mee aan de Solar Orbiter: de organisatie was verantwoordelijk voor de boeking van de Atlas V-lanceerraket en leverde daarnaast ook instrumenten. \nWhy Solar Orbiter is angling towards the Sun’s poles\, klik op afbeelding voor vergroting of hier voor info\n\nLinks:\nSolar Orbiter \nSolar Orbiter gets world-first views of the Sun’s poles
URL:https://www.a3veen.nl/event/solar-orbiter/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20211225T132000
DTEND;TZID=Europe/Amsterdam:20311225T170000
DTSTAMP:20260531T233024
CREATED:20230729T144352Z
LAST-MODIFIED:20260226T142452Z
UID:92704-1640438400-1955984400@www.a3veen.nl
SUMMARY:#UnfoldTheUniverse #JWST James Webb Space Telescope / Henrietta Leavitt Teleskop
DESCRIPTION:The James Webb Space Telescope (JWST or “Webb” / called Henrietta Leavitt Teleskop by german scientists Harald Lesch and Josef M. Gaßner) is a space telescope to succeed the Hubble Space Telescope as NASA’s flagship astrophysics mission. \nThe JWST will provide improved infrared resolution and sensitivity over Hubble\, and will enable a broad range of investigations across the fields of astronomy and cosmology\, including observing some of the most distant events and objects in the universe\, such as the formation of the first galaxies. The primary mirror of the JWST\, the Optical Telescope Element\, is composed of eighteen 1.32 metres hexagonal mirror segments made of gold-plated beryllium which combine to create a 6.5 metres diameter mirror that is considerably larger than the Hubble’s 2.4 metres mirror. Unlike the Hubble\, which observes in the near ultraviolet\, visible\, and near infrared (0.1 to 1 μm) spectra\, the JWST will observe in a lower frequency range\, from long-wavelength visible light through mid-infrared (0.6 to 28.3 μm)\, which will allow it to observe high redshift objects that are too old and too distant for the Hubble to observe. \nThe telescope must be kept very cold in order to observe in the infrared without interference\, so it will be deployed in space near the Earth–Sun L2 Lagrangian point\, and a large sunshield made of silicon-coated and aluminium-coated Kapton will keep its mirror and instruments below 50 Kelvin (K). The JWST is being developed by NASA — with significant contributions from the European Space Agency and the Canadian Space Agency — and is named for James E. Webb\, who was the administrator of NASA from 1961 to 1968 and played an integral role in the Apollo program. The prime contractor is Northrop Grumman. Development began in 1996 for a launch that was initially planned for 2007 and a 500-million-dollar budget\, but the project has had numerous delays and cost overruns\, and underwent a major redesign in 2005. The JWST’s construction was completed in late 2016\, after which its extensive testing phase began. The launch date was Dec. 25\, 2021. \n\nLinks:\nJames Webb Space Telescope \nJames Webb Space Telescope -ESA \nWebb Home \nWebb Space Telescope \nNASA’s James Webb Space Telescope – Flickr \nJADES will go deeper than the Hubble Deep Fields \nJames Webb Space Telescope / Henrietta Leavitt Teleskop – playlist \nNASA’s Webb In Full Focus\, Ready for Instrument Commissioning \nNieuwe ruimtetelescoop kijkt naar het begin van de tijd – of net ietsje later \nWebb is now orbiting L2 \nPhotons Received: Webb Sees Its First Star – 18 Times \nNASA emails reveal internal discussions over calls to rename James Webb Space Telescope: report \nFirst Images From NASA’s Webb Space Telescope Coming Soon \nNo\, the Big Bang theory is not ‘broken.’ Here’s how we know \nWebb Looks for Fomalhaut’s Asteroid Belt and Finds Much More \nJames Webb spot monsterachtige waterpluim op Enceladus \nWebb Space Telescope’s First Year of Science Celebration \nWebb Discovers Methane\, Carbon Dioxide in Atmosphere of K2-18 b \nNASA’s James Webb Space Telescope (Flickr) \nThe (Unofficial) JWST Exoplanet Dashboard \nJWST facing potential cuts to its operational budget \nStrongest hints yet of biological activity outside the solar system / New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI – publication
URL:https://www.a3veen.nl/event/unfoldtheuniverse-jwst-james-webb-space-telescope-henrietta-leavitt-teleskop/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20221216
DTEND;VALUE=DATE:20251217
DTSTAMP:20260531T233024
CREATED:20231122T141648Z
LAST-MODIFIED:20231122T141731Z
UID:99037-1671148800-1765929599@www.a3veen.nl
SUMMARY:Surface Water and Ocean Topography (SWOT) mission
DESCRIPTION:The Surface Water and Ocean Topography (SWOT) mission is a satellite altimeter jointly developed and operated by NASA and CNES\, the French space agency\, in partnership with the Canadian Space Agency (CSA) and UK Space Agency (UKSA). \nThe objectives of the mission are to make the first global survey of the Earth’s surface water\, to observe the fine details of the ocean surface topography\, and to measure how terrestrial surface water bodies change over time. While past satellite missions like the Jason series altimeters (TOPEX/Poseidon\, Jason-1\, Jason-2\, Jason-3) have provided variation in river and lake water surface elevations at select locations\, SWOT will provide the first truly global observations of changing water levels\, stream slopes\, and inundation extents in rivers\, lakes\, and floodplains. In the world’s oceans\, SWOT will observe ocean circulation at unprecedented scales of 15–25 km (9.3–15.5 mi)\, approximately an order of magnitude finer than current satellites. Because it uses wide-swath altimetry technology\, SWOT will almost completely observe the world’s oceans and freshwater bodies with repeated high-resolution elevation measurements\, allowing observations of variations. \nLinks:\nSurface Water and Ocean Topography at NASA.gov \nOcean Surface Topography from Space at NASA.gov \nCnes project Library at CNES.fr \nAVISO+ portal for SWOT
URL:https://www.a3veen.nl/event/surface-water-and-ocean-topography-swot-mission/
CATEGORIES:Astronomie,Geografie,kennis
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20230413T141500
DTEND;TZID=Europe/Amsterdam:20351213T170000
DTSTAMP:20260531T233024
CREATED:20230730T164118Z
LAST-MODIFIED:20230730T165113Z
UID:92740-1681395300-2081178000@www.a3veen.nl
SUMMARY:JUpiter ICy moons Explorer
DESCRIPTION:The JUpiter ICy moons Explorer (JUICE) is an interplanetary spacecraft in development by the European Space Agency (ESA) with Airbus Defence and Space as the main contractor. \nThe mission will study three of Jupiter‘s Galilean moons: Ganymede\, Callisto\, and Europa\, all of which are thought to have significant bodies of liquid water beneath their surfaces\, making them potentially habitable environments. The mission is not focused on volcanically active Io\, a non-icy moon. The spacecraft launched on 14 April 2023 at 12:14 UTC and will reach Jupiter in July 2031 after four gravity assists and eight years of travel. In December 2034\, the spacecraft will enter orbit around Ganymede for its close up science mission\, becoming the first spacecraft to orbit a moon other than the Moon of Earth. The selection of this mission for the L1 launch slot of ESA’s Cosmic Vision science programme was announced on 2 May 2012. Its period of operations will overlap with NASA‘s Europa Clipper mission\, launching in 2024. \n\n\nNASA’s Juno Is Getting Ever Closer to Jupiter’s Moon Io Links:\nESA’s JUICE \nJuice \nAgenda – JUpiter ICy moons Explorer : launch / Agenda – JUpiter ICy moons Explorer : launch 2nd attempt \nJuice pre-launch press briefing \nHow to follow the Juice launch live
URL:https://www.a3veen.nl/event/jupiter-icy-moons-explorer/
CATEGORIES:Astronomie,Jupiter
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20230701T171100
DTEND;TZID=Europe/Amsterdam:20290701T171100
DTSTAMP:20260531T233024
CREATED:20230809T130227Z
LAST-MODIFIED:20241120T082444Z
UID:93109-1688231460-1877620260@www.a3veen.nl
SUMMARY:Cosmic Vision : Euclid space telescope / Euclides
DESCRIPTION:Euclid is a visible to near-infrared space telescope developed by the European Space Agency (ESA) and the Euclid Consortium\, the objective of the Euclid mission is to better understand dark energy and dark matter by accurately measuring the acceleration of the universe. \nTo achieve this\, the Korsch-type telescope will measure the shapes of galaxies at varying distances from Earth and investigate the relationship between distance and redshift. Dark energy is generally accepted as contributing to the increased acceleration of the expanding universe\, so understanding this relationship will help to refine how physicists and astrophysicists understand it. Euclid’s mission advances and complements ESA’s Planck telescope (2009 to 2013). The mission is named after the ancient Greek mathematician Euclid. Euclid is a medium-class (“M-class”) mission and is part of the Cosmic Vision campaign of ESA’s Science Programme. This class of missions have an ESA budget cap at around €500 million. Euclid was chosen in October 2011 together with Solar Orbiter\, out of several competing missions. Prior to the Russian invasion of Ukraine\, the launch was scheduled on a Soyuz ST-B in 2023; following the invasion\, Euclid will instead be launched on a Falcon 9 Block 5 on 1 July 2023. \nLinks:\nEuclid \nHow to follow the Euclid launch live \nRuimtetelescoop Euclid wil uitvinden waar het heelal van gemaakt is \nEuclid test images tease of riches to come \nEuclid ‘dark universe’ telescope team will unveil new full-color images today (May 23) \nZoom into the first page of ESA Euclid’s great cosmic atlas \nSpace Warps – ESA Euclid / Euclid Galaxy Zoo – help us classify the shapes of galaxies
URL:https://www.a3veen.nl/event/euclid-space-telescope-euclides/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20231001
DTEND;VALUE=DATE:20250101
DTSTAMP:20260531T233024
CREATED:20230812T235221Z
LAST-MODIFIED:20231012T115731Z
UID:93378-1696118400-1735689599@www.a3veen.nl
SUMMARY:Heliophysics Big Year
DESCRIPTION:The Heliophysics Big Year is a global celebration of solar science and the Sun’s influence on Earth and the entire solar system. \nDuring the Heliophysics Big Year\, you will have the opportunity to participate in many solar science events such as watching solar eclipses\, experiencing an aurora\, participating in citizen science projects\, and other fun Sun-related activities. Heliophysics is the study of our star and how it interacts with everything in our solar system. The “Big Year” is a concept that originated with citizen scientists in the bird-watching community. During their Big Year\, birders attempt to observe and study as many bird species as possible during a calendar year\, and we are challenging you to do the same with our Sun. \nLinks:\nThe Heliophysics Big Year \nBig Year
URL:https://www.a3veen.nl/event/heliophysics-big-year/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240101
DTEND;VALUE=DATE:20250101
DTSTAMP:20260531T233024
CREATED:20240101T192244Z
LAST-MODIFIED:20240920T182639Z
UID:113551-1704067200-1735689599@www.a3veen.nl
SUMMARY:Jaar van het Planetarium
DESCRIPTION:By Bundesarchiv\, Bild 183-1987-1008-020 / CC-BY-SA 3.0\, CC BY-SA 3.0 de\nIn 1923\, ZEISS presented the world’s first projection planetarium developed for the Deutsches Museum in Munich\, the first public demonstration and hence the birth of the modern planetarium took place on this occasion. \nOn 7 May 1925\, the ZEISS Planetarium in the Deutsches Museum began regular operation. Today\, as modern high-tech domes\, star theaters offer fascinating fulldome shows and are still a crowd puller after 100 years. \nLinks:\n100 years of ZEISS planetariums
URL:https://www.a3veen.nl/event/jaar-van-het-planetarium/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240104
DTEND;VALUE=DATE:20240913
DTSTAMP:20260531T233024
CREATED:20240915T123934Z
LAST-MODIFIED:20240915T124451Z
UID:113213-1704326400-1726185599@www.a3veen.nl
SUMMARY:Astronomy Photographer of the Year competition 2024
DESCRIPTION:The 2024 Overall Winner of the Astronomy Photographer of the Year competition is “Distorted Shadows of the Moon’s Surface Created by an Annular Eclipse” © Ryan Imperio (USA)\, click on picture to see original photo\nAstronomy Photographer of the Year is an annual astronomy photography competition and exhibition that is organised by the Royal Observatory\, Greenwich (part of Royal Museums Greenwich). \nThe competition was launched in 2009 during the International Year of Astronomy. It has expanded significantly since this time and since 2016 the overall winner receives a prize of £10\,000. In 2018 the exhibition moved to the Photography Gallery at the National Maritime Museum\, where the exhibition showed a 10-year retrospective of the competition’s 31 winning images alongside 69 of the best winning images from the past nine years. Since then\, each year’s winning images have been showcased alongside the shortlisted images in the annual exhibition. \nLinks:\nAstronomy Photographer of the Year \nAnd the Winner is…. Astronomy Photographers of the Year 2024 Announced
URL:https://www.a3veen.nl/event/astronomy-photographer-of-the-year-competition-2024/
CATEGORIES:Astronomie,Foto
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240201
DTEND;VALUE=DATE:20241001
DTSTAMP:20260531T233024
CREATED:20240322T020037Z
LAST-MODIFIED:20240322T120549Z
UID:104633-1706745600-1727740799@www.a3veen.nl
SUMMARY:T Coronae Borealis : Nova Explosion 2024
DESCRIPTION:Star system T Coronae Borealis (T CrB) located 3\,000 light-years away from Earth\, is predicted to\nbecome visible to the unaided eye soon. \nThis could be a once-in-a-lifetime viewing opportunity as the nova ouburst only occurs about every 80 years. T CrB\, last exploded in 1946 and astronomers believe it will do so again between February and September 2024. The star system\, normally magnitude +10\, which is far too dim to see with the unaided eye\, will jump to magnitude +2 during the event. This will be of similar brightness to the North Star\, Polaris. Once its brightness peaks\, it should be visible to the unaided eye for several days and just over a week with binoculars before it dims again\, possibly for another 80 years. As we wait for the nova\, become familiar with the constellation Corona Borealis\, or the Northern Crown — a small\, semicircular arc near Bootes and Hercules. This is where the outburst will appear as a “new” bright star. This recurring nova is only one of five in our galaxy. This happens because T CrB is a binary system with a white dwarf and red giant. The stars are close enough that as the red giant becomes unstable from its increasing temperature and pressure and begins ejecting its outer layers\, the white dwarf collects that matter onto its surface. The shallow dense atmosphere of the white dwarf eventually heats enough to cause a runaway thermonuclear reaction – which produces the nova we see from Earth. \nLinks:\nView Nova Explosion\, ‘New’ Star in Northern Crown
URL:https://www.a3veen.nl/event/t-coronae-borealis-nova-explosion-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240208T073300
DTEND;TZID=Europe/Amsterdam:20270208T170000
DTSTAMP:20260531T233024
CREATED:20240209T204257Z
LAST-MODIFIED:20240209T204747Z
UID:102637-1707377580-1802106000@www.a3veen.nl
SUMMARY:Plankton\, Aerosol\, Cloud\, ocean Ecosystem
DESCRIPTION:Plankton\, Aerosol\, Cloud\, ocean Ecosystem (PACE) is a NASA Earth-observing satellite mission that will continue and advance observations of global ocean color\, biogeochemistry\, and ecology\, as well as the carbon cycle\, aerosols and clouds. \nPACE will be used to identify the extent and duration of phytoplankton blooms and improve understanding of air quality. These and other uses of PACE data will benefit the economy and society\, especially sectors that rely on water quality\, fisheries and food security. After being proposed for cancellation under President Trump’s FY 2018 budget\, it was restored by Congress. The PACE project is managed by NASA Goddard Space Flight Center. The main instrument and bus were designed and built at Goddard Space Flight Center. On 4 February 2020\, NASA announced the selection of SpaceX to launch PACE on a Falcon 9\, at a total cost to NASA of US$80.4 million\, including the launch service and other mission-related costs. The total cost of the mission is $964 million\, which includes spacecraft construction\, launch\, and operations. PACE successfully launched on 8 February 2024 at 07:33. \nLinks:\nPACE
URL:https://www.a3veen.nl/event/plankton-aerosol-cloud-ocean-ecosystem/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240321
DTEND;VALUE=DATE:20250106
DTSTAMP:20260531T233024
CREATED:20240321T190242Z
LAST-MODIFIED:20240912T180855Z
UID:113068-1710979200-1736121599@www.a3veen.nl
SUMMARY:Dichter bij het Zwarte Gat - tentoonstelling
DESCRIPTION:Zwarte Gaten: Mysterieuze plekken in de kosmos\, die alles opslokken en waar niets\, zelfs licht niet\, uit ontsnappen kan. \nHet zijn misschien wel de spannendste fenomenen van het heelal\, waar ook de wetenschappers nog lang niet alles van begrijpen. Iedereen heeft van zwarte gaten gehoord en heeft er wel een beeld bij. De spannende\, extreme eigenschappen van deze plekken zijn inspiratie geweest voor tal van verhalen\, films en games. Er wordt al decennialang onderzoek naar gedaan en de eerste afbeelding van een zwart gat staat nog vers in het geheugen gegrift. Maar wat zijn zwarte gaten dan eigenlijk?  Zijn ze echt gevaarlijk? Moeten we zwarte gaten vrezen? Is een zwart gat wel een gat? In de nieuwe tentoonstelling van Rijksmuseum Boerhaave word je stapsgewijs door deze boeiende materie geloodst\, zodat je aan het einde van je bezoek iets dichter bij het zwarte gat bent gekomen. In de tentoonstelling zijn bijzondere objecten en topstukken te zien\, zowel uit de eigen collectie van het museum als bruiklenen van onder meer Roger Penrose persoonlijk\, het Rijksmuseum\, Kunstmuseum Den Haag en het Science Museum in Londen. Zo zijn er prenten van Escher\, de eerste brief van Escher aan Penrose\, persoonlijke objecten van zwartegatenpionier Stephen Hawking\, de pen van Einstein\, een litho van Jean Pierre Luminet\, tekeningen\, brieven en een puzzel van Roger Penrose en couture uit de Black Hole collectie van niemand minder dan Viktor & Rolf. Nieuwsgierig geworden? Na een bezoek aan de tentoonstelling over Zwarte Gaten hoef je niet meer bang te zijn voor het ogenschijnlijk enge ‘monster’. Ontdek waarom ook wetenschappers eindeloos gefascineerd zijn door zwarte gaten en kom meer te weten over de ongrijpbaarheid van ons heelal. \nLinks:\nDichter bij het Zwarte Gat \nDichter bij het Zwarte Gat – Museumtijdschrift
URL:https://www.a3veen.nl/event/dichter-bij-het-zwarte-gat-tentoonstelling/
LOCATION:Rijksmuseum Boerhaave\, Lange Sint Agnietenstraat 10\, Leiden\, Netherlands
CATEGORIES:Astronomie,Zwart gat
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240625T232600
DTEND;TZID=Europe/Amsterdam:20391025T000000
DTSTAMP:20260531T233024
CREATED:20241025T055924Z
LAST-MODIFIED:20241025T211716Z
UID:115444-1719357960-2203113600@www.a3veen.nl
SUMMARY:GOES-19
DESCRIPTION:GOES-19 (designated GOES-U prior to reaching geostationary orbit) is a weather satellite\, the fourth and last of the GOES-R series of satellites operated by the National Oceanic and Atmospheric Administration (NOAA). \nThe GOES-R series will extend the availability of the Geostationary Operational Environmental Satellite (GOES) system until 2036. The satellite is built by Lockheed Martin\, based on the A2100 platform. The satellite was successfully launched into space atop a SpaceX Falcon Heavy rocket on 25 June 2024 at 21:26 UTC from the Kennedy Space Center in Florida\, United States. The redesign of the loop heat pipe to prevent an anomaly\, as seen in GOES-17\, is not expected to delay the launch as it did with GOES-T. GOES-U also carries a copy of the Naval Research Laboratory’s Compact CORonagraph (CCOR) instrument which\, along with the CCOR planned for Space Weather Follow On-Lagrange 1 (SWFO-L1)\, will allow continued monitoring of solar wind after the retirement of the NASA–ESA SOHO satellite in 2025. GOES-U has a dry mass of 2\,925 kg and a fueled mass of 5\,000 kg. \nLinks:\nGEOS – R\n\nGOES-U Mission Overview \nSatellite: GOES-19 \nWatch sun erupt in 1st images from NOAA’s groundbreaking new satellite (photos)
URL:https://www.a3veen.nl/event/goes-19/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240708T230000
DTEND;TZID=Europe/Amsterdam:20240708T233000
DTSTAMP:20260531T233024
CREATED:20240708T101451Z
LAST-MODIFIED:20240708T101816Z
UID:110395-1720479600-1720481400@www.a3veen.nl
SUMMARY:The Sky at Night - Webb Telescope: The Story So Far (TV BBC Four / BBC iPlayer)
DESCRIPTION:The Sky at Night is a monthly documentary television programme on astronomy produced by the BBC. \nThe show had the same permanent presenter\, Patrick Moore\, from its first broadcast on 24 April 1957 until 7 January 2013. The latter date was a posthumous broadcast\, which followed Moore’s death on 9 December 2012. This made it the longest-running programme with the same presenter in television history. Many early episodes are missing\, either because the tapes were wiped\, thrown out\, or because the episode was broadcast live and never recorded in the first place. \nBeginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nIn July 2022\, the James Webb Space Telescope (JWST) released its first images. They were visually stunning\, and it was clear they provided more detail of stars\, galaxies and planets than ever before. But for the scientists waiting on the data\, this was just the beginning of their journey to discover what the new telescope would reveal. Since then\, they have been working hard and publishing papers on all the data JWST has been sending back. \nTwo years ago\, just after the first images were released\, Chris Lintott set off on a road trip to meet some of the scientists that were excitedly waiting on the first data. He wanted to find out what they hoped it could reveal. To mark the second anniversary Chris\, along with fellow presenters Maggie Aderin-Pocock and George Dransfield\, headed off to meet scientists old and new\, to find out what the Webb Telescope has told us so far. \nChris gives us a run-down of the highs and lows the Webb Telescope has been through and the other discoveries it has made. Maggie is off to Bristol University to revisit Dr Hannah Wakeford who has been using JWST data to reveal what interesting chemicals exoplanet atmospheres contain. \nGeorge meets Professor Leigh Fletcher at the University of Leicester. When Chris met him two years ago\, only one JWST image of Jupiter had been released. Now\, he has data from all four of the outer planets of the solar system\, and they have all thrown up surprises. JWST has revealed new jet streams on Jupiter and provided a greater understanding of its Galilean moons. Seasonal changes on Saturn have now been documented\, and Uranus and Neptune have thrown up quirks that need another few years of work to understand. \nChris also visits the University of Cambridge to meet Dr Sandro Tacchella\, who has been part of a team looking back at some of the earliest galaxies. He explains what new light the JWST data can shed on ancient stars\, and what that can reveal about how our cosmos formed after the Big Bang. \nFinally\, our resident astronomer Pete Lawrence guides us through what there is to see in this month’s night sky\, and how you too can look at some of the same targets as the James Webb Space Telescope – just not quite in the same level of detail! \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-webb-telescope-the-story-so-far-tv-bbc-four-bbc-iplayer/
CATEGORIES:Astronomie,TV
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240709T200000
DTEND;TZID=Europe/Amsterdam:20240709T235900
DTSTAMP:20260531T233024
CREATED:20240708T073003Z
LAST-MODIFIED:20260212T191048Z
UID:110453-1720555200-1720569540@www.a3veen.nl
SUMMARY:Ariane 6 - launch / lancering : Europe's new rocket launching for 1st time ever (TV ESA Web TV / YouTube)
DESCRIPTION:Ariane 6 is scheduled to launch on 9 July 2024\, with a launch window from 15:00-19:00 local time at Europe’s Spaceport in French Guiana (19:00–23:00 BST\, 9 July 20:00–10 July 00:00 CEST). \nAriane 6 is a European expendable launch system operated by Arianespace and developed and produced by ArianeGroup on behalf of the European Space Agency (ESA). It replaces the Ariane 5\, as part of the Ariane launch vehicle family. This two-stage rocket utilizes liquid hydrogen and liquid oxygen (hydrolox) engines. The first stage features an upgraded Vulcain engine from the Ariane 5\, while the second uses the Vinci engine\, designed specifically for this rocket. The first launch in 2024 used the variant Ariane 62 (A62)\, with two P120C solid boosters\, weighs around 530\,000 kg at liftoff and is mainly for government and scientific missions. It can launch up to 4\,500 kg into geosynchronous transfer orbit (GTO) and 10\,350 kg into low Earth orbit (LEO). The P120 is shared with Europe’s other launch vehicle\, the Vega C\, and is an improved version of the P80 used on the original Vega. Selected in December 2014 over an all-solid-fuel option\, the Ariane 6 was originally targeted for a 2020 launch. However\, the program encountered delays\, pushing the first launch attempt to 9 July 2024. Designed to halve launch costs and increase annual capacity from seven to eleven missions compared to its predecessor\, the Ariane 6 has faced criticism for its launch price and lack of reusability. European officials defend the program\, saying it provides crucial independent space access for its member nations. \n \nLinks:\nAriane 6 launch: how to watch and what to look out for \nEurope’s new Ariane 6 rocket launching for 1st time ever this week \nESA Web TV – live stream
URL:https://www.a3veen.nl/event/ariane-6-launch-lancering-tv-esa-web-tv-20240709/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240712T220000
DTEND;TZID=Europe/Amsterdam:20240712T230000
DTSTAMP:20260531T233024
CREATED:20240712T200036Z
LAST-MODIFIED:20240712T200055Z
UID:110669-1720821600-1720825200@www.a3veen.nl
SUMMARY:Cosmology in Crisis? Confronting the Hubble Tension (TV webcast)
DESCRIPTION:How fast is the universe expanding? \nTwo prominent approaches are finding different answers\, propelling cosmology toward a crisis. Wendy Freedman\, a renowned astronomer who has spent decades seeking the expansion rate\, joins Brian Greene to discuss the latest thinking on this so-called Hubble Tension. This program is part of the Big Ideas series\, supported by the John Templeton Foundation. \nLinks:\nWorld science festival
URL:https://www.a3veen.nl/event/cosmology-in-crisis-confronting-the-hubble-tension-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240718T200000
DTEND;TZID=Europe/Amsterdam:20240718T210000
DTSTAMP:20260531T233024
CREATED:20240718T084726Z
LAST-MODIFIED:20240719T175656Z
UID:110906-1721332800-1721336400@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte : Neues aus der Sonnenumgebung - Braune Zwerge (TV webcast)
DESCRIPTION:Die Babelsberger Sternennächte finden online statt\, in der Regel gibt es immer am 3. Donnerstag im Monat einen neuen Vortrag einer Wissenschaftlerin oder eines Wissenschaftlers des AIP\, der ab 20 Uhr auf dem YouTube-Kanal von Urknall\, Weltall und das Leben ausgestrahlt wird (Playlist). \nWie viele Braune Zwerge gibt es eigentlich in der Sonnenumgebung? Sind bereits alle bekannt? Auf diese und weitere Fragen geht Dr. Ralf-Dieter Scholz in seinem Vortrag ein. In Ergänzung zu seinem früheren Vortrag bei „Urknall\, Weltall und das Leben“ stellt er hier vor\, welche neuen Erkenntnisse die europäische Weltraummission Gaia mittlerweile geliefert hat. Die Gaia-Beobachtungen im optischen Bereich sind für Braune Zwerge nur begrenzt nutzbar und waren für viele Komponenten von engen Mehrfachsystemen\, also Doppelsterne und auch Systeme mit Braunen Zwergen\, bisher noch nicht ausreichend für die Bestimmung ihrer Entfernungen\, Eigenbewegungen und Bahnparameter. Aber Beobachtungen mit erdgebundenen und Weltraum-Teleskopen im infraroten Bereich führten in den letzten 25 Jahren zu einer Vielzahl von Entdeckungen der masseärmsten Sterne und Braunen Zwerge in der unmittelbaren Umgebung der Sonne\, Beiträge dazu kamen auch aus dem AIP. Eine 2023 veröffentlichte Zusammenstellung aller bekannten Sterne und Braunen Zwerge bis zu einer Entfernung von 20 Parsec scheint nun zumindest innerhalb von 10 Parsec vollständig zu sein. Im kürzlich erschienenen Artikel Scholz & Mints (2024) in der Zeitschrift Research Notes of the American Astronomical Society (RNAAS) diskutieren Ralf-Dieter Scholz und Alexey Mints\, ob nun alle stellaren und substellaren Nachbarn der Sonne innerhalb von 10 Parsec bekannt sind – oder Zweifel angebracht wären. Sobald der neue Vortrag verfügbar ist\, ist der Link direkt auf dieser Seite zu finden. Bitte beachten Sie\, dass fast alle Vorträge auf Deutsch gehalten werden. \nLinks:\nBabelsberger Sternennächte
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-tv-webcast-20240718/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240720
DTEND;VALUE=DATE:20240721
DTSTAMP:20260531T233024
CREATED:20240720T170648Z
LAST-MODIFIED:20240724T160309Z
UID:111031-1721433600-1721519999@www.a3veen.nl
SUMMARY:Moon Day 2024
DESCRIPTION:The General Assembly declared International Moon Day\, a United Nations-designated international day to be observed annually on 20 July\, in its resolution 76/76 on “International cooperation in the peaceful uses of outer space” in 2021. \nInternational Moon Day marks the anniversary of the first landing by humans on the Moon as part of the Apollo 11 lunar mission. The celebrations will also consider the achievements of all States in the exploration of the Moon and raise public awareness of sustainable Moon exploration and utilization. For thousands of years\, human civilizations have looked up to the sky pondering the origin and mysteries of the Moon – our only natural satellite. Ground-based observations enabled by the invention of the first telescopes opened a new chapter in our understanding of our celestial companion. With the birth of space activities\, the Moon became the ultimate destination of countless missions\, including crewed flights that brought the first human footprints to another place in the universe. As Moon exploration efforts continue taking shape with ambitious plans\, this global celebration will serve not only as a reminder of success in the past\, but as an annual testimony to future endeavours. \nLinks:\nMoon Day \nMoonDay.org \nApollo 11 \nApolloprogramma NASA \nApollo 11 Real-Time Mission Experience \nRare Views of the Moon\, as Seen by Apollo Astronauts \nLetter To The World After The Apollo Astronauts Died On The Moon
URL:https://www.a3veen.nl/event/moon-day-2024/
CATEGORIES:Astronomie,Maan
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240722
DTEND;VALUE=DATE:20240726
DTSTAMP:20260531T233024
CREATED:20240722T194459Z
LAST-MODIFIED:20240726T195222Z
UID:111334-1721606400-1721951999@www.a3veen.nl
SUMMARY:#10thMars conference
DESCRIPTION:The Tenth International Conference on Mars will be an ideal time to take fresh stock of our body of Red Planet knowledge\, share discoveries\, review recommendations and findings of the various community strategic visions\, and revisit our list of top science objectives. \nIt is also an opportunity to look ahead to the science of Mars Sample Return\, ESA’s ExoMars Rover and Surface Platform\, JAXA’s Martian Moons Exploration (MMX) mission\, other missions in development worldwide\, and NASA’s Moon to Mars human exploration architecture. Contributions from Mars scientists in all scientific sub-disciplines are invited\, including specific data-driven abstracts and broader synthesis abstracts. Oral presentations will be selected with a preference for those integrating individual science results\, placing a current state of understanding within a larger context and addressing the evolution of scientific objectives as motivated by ongoing discovery and scholarship. \nLinks:\n10th Mars conference
URL:https://www.a3veen.nl/event/10thmars-conference/
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240724
DTEND;VALUE=DATE:20240725
DTSTAMP:20260531T233024
CREATED:20240818T231157Z
LAST-MODIFIED:20240820T130352Z
UID:112071-1721779200-1721865599@www.a3veen.nl
SUMMARY:NASA’s Webb Telescope Finds Evidence For An Ocean World Around Uranus / JWST Reveals CO Ice\, Concentrated CO2 Deposits\, and Evidence for Carbonates Potentially Sourced from Ariel's Interior - publication
DESCRIPTION:The research paper “JWST Reveals CO Ice\, Concentrated CO2 Deposits\, and Evidence for Carbonates Potentially Sourced from Ariel’s Interior” argues that it may be coming from a liquid ocean beneath the surface of the Uranian moon Ariel. \nLinks:\nNASA’s Webb Telescope Finds Evidence For An Ocean World Around Uranus
URL:https://www.a3veen.nl/event/nasas-webb-telescope-finds-evidence-for-an-ocean-world-around-uranus-jwst-reveals-co-ice-concentrated-co2-deposits-and-evidence-for-carbonates-potentially-sourced-from-ariels-interior/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240724T200000
DTEND;TZID=Europe/Amsterdam:20240724T213000
DTSTAMP:20260531T233024
CREATED:20240724T013544Z
LAST-MODIFIED:20240724T113951Z
UID:111201-1721851200-1721856600@www.a3veen.nl
SUMMARY:The biggest ideas in the Universe 2 (TV webcast)
DESCRIPTION:Immense\, strange and infinite\, the world of modern physics often feels impenetrable to the undiscerning eye; a jumble of muons\, gluons and quarks are impossible to explain without several degrees and a research position at CERN. \nBut it doesn’t have to be this way! In this livestream\, world-renowned theoretical physicist and bestselling author Sean Carroll will guide you through the biggest ideas in the universe. In an elegant and simple way\, Carroll unravels a web of theories to get to the heart of the truths they represent about the world around us. Sean delves into the baffling and beautiful world of quantum mechanics. From Schrödinger to Feynman\, he travels through the quantum revolution with the twentieth century’s greatest minds. Exploring how several decades of research overturned centuries of convention\, he provides a dazzling tour of the most exciting ideas in modern science. \nLinks:\nThe biggest ideas in the Universe 2 \nThe biggest ideas in the Universe 1
URL:https://www.a3veen.nl/event/the-biggest-ideas-in-the-universe-2-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240725
DTEND;VALUE=DATE:20240726
DTSTAMP:20260531T233024
CREATED:20240725T193613Z
LAST-MODIFIED:20240730T212649Z
UID:111450-1721865600-1721951999@www.a3veen.nl
SUMMARY:NASA’s Perseverance Rover Scientists Find Intriguing Mars Rock - publication
DESCRIPTION:NASA’s Perseverance Rover found a fascinating rock that has some indications it may have hosted microbial life billions of years ago\, but further research is needed. \nA vein-filled rock is catching the eye of the science team of NASA’s Perseverance rover. Nicknamed “Cheyava Falls” by the team\, the arrowhead-shaped rock contains fascinating traits that may bear on the question of whether Mars was home to microscopic life in the distant past. Analysis by instruments aboard the rover indicates the rock possesses qualities that fit the definition of a possible indicator of ancient life. The rock exhibits chemical signatures and structures that could possibly have been formed by life billions of years ago when the area being explored by the rover contained running water. Other explanations for the observed features are being considered by the science team\, and future research steps will be required to determine whether ancient life is a valid explanation. The rock — the rover’s 22nd rock core sample — was collected on July 21\, as the rover explored the northern edge of Neretva Vallis\, an ancient river valley measuring 400 meters wide that was carved by water rushing into Jezero Crater long ago. \nLinks:\nNASA’s Perseverance Rover Scientists Find Intriguing Mars Rock \nDie Nasa präsentiert ein Marsgestein\, das möglicherweise Spuren einstigen Lebens enthält – mit der Betonung auf möglicherweise
URL:https://www.a3veen.nl/event/nasas-perseverance-rover-scientists-find-intriguing-mars-rock-publication/
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240729T160000
DTEND;TZID=Europe/Amsterdam:20240729T170000
DTSTAMP:20260531T233024
CREATED:20240729T080218Z
LAST-MODIFIED:20240729T080218Z
UID:111392-1722268800-1722272400@www.a3veen.nl
SUMMARY:Meteorenzwerm δ-Cassiopeiïden in juli 2024
DESCRIPTION:De meteorenzwerm δ-Cassiopeiïden bereikt op maandag 29 juli 2024\, rond 16:00\, zijn maximum. \nWanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 10 meteoren per uur vallen. De radiant van de zwerm staat rond 06:00 in het hoogste punt aan de hemel\, op 79° boven de horizon. Het beste moment om δ-Cassiopeiïden waar te nemen is op 30 juli rond 03:15. De radiant van de zwerm staat dan ongeveer 66° boven de horizon\, in het noordoosten. Door de matige omstandigheden zijn er in onze streken dan vermoedelijk maar circa 2–6 meteoren per uur van deze zwerm te zien. In totaal zijn er\, door meteoren van andere zwermen en sporadische meteoren\, bij donkere en heldere hemel circa 8–15 meteoren per uur zichtbaar. Op een goed donkere plek zijn bijna vier keer zoveel meteoren te zien als in dichtbevolkt gebied. De Maan komt om 00:38 op\, is voor ongeveer 30% verlicht en kan eventueel storen. Rond 05:15 gaat het schemeren en om 05:58 komt de Zon op. Over het algemeen zijn de de meteoren van een zwerm niet alleen op de dag van het maximum zichtbaar. Zo is gedurende circa 5 dagen rondom het maximum meer dan 50% van het maximale aantal meteoren (2 per uur) van de δ-Cassiopeiïden te zien. Tot 6 dagen voor en na het maximum zijn nog meteoren van deze zwerm te herkennen. De zwerm heeft daarmee een relatief korte piek. Er zijn dus nog meer kansen\, voor het geval het in de nacht van het maximum niet helder is. Iedere dag verder weg van het maximum zijn er echter wel ongeveer 20% minder meteoren per uur te zien. De snelheden van de meteoren van de δ-Cassiopeiïden zijn behoorlijk hoog: zo’n 60 km/s\, dat is circa 216.000 km/uur! \nLinks:\nMeteorenzwerm δ-Cassiopeiïden in juli 2024
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b4-cassiopeiiden-in-juli-2024/
CATEGORIES:Astronomie,Meteoren
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240808T080000
DTEND;TZID=Europe/Amsterdam:20240808T170000
DTSTAMP:20260531T233024
CREATED:20240808T025706Z
LAST-MODIFIED:20240811T174546Z
UID:111758-1723104000-1723136400@www.a3veen.nl
SUMMARY:Meteorenzwerm δ-Aquariden noord in augustus 2024
DESCRIPTION:De meteorenzwerm δ-Aquariden noord bereikt op 8 augustus 2024\, rond 12:00\, zijn maximum. \nZelfs wanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld slechts zo’n 4 meteoren per uur vallen. Rond 03:30 staat de radiant van de zwerm in het hoogste punt (op 40°) aan de hemel. Er is dan bij ons ieder uur slechts een enkele meteoor van deze zwerm zichtbaar. Samen met meteoren van andere zwermen\, en sporadische meteoren\, zijn er bij donkere\, heldere hemel in totaal circa 14–22 “vallende sterren” per uur te zien. Op een donkere locatie zijn circa vier keer zoveel meteoren te zien als in dichtbevolkt gebied. De Maan stoort niet. Rond 05:30 gaat het schemeren en om 06:14 komt de Zon op. De meteoren van de meeste zwermen verschijnen niet allemaal op de dag van het maximum. Zo is gedurende circa 21 dagen rondom het maximum ruim de helft van het maximale aantal meteoren van de δ-Aquariden noord te zien. Tot 13 dagen voor en na het maximum zijn nog meteoren van deze zwerm te herkennen. De zwerm heeft daarmee een vrij lange piek. Probeer dus ook enkele nachten voor en na het maximum meteoren waar te nemen. Iedere dag verder weg van het maximum zijn er echter wel ongeveer 7% minder meteoren per uur te zien. De typische snelheden van de meteoren in deze zwerm zijn met circa 37 km/s (ongeveer 133.200 km/uur) vrij gemiddeld. Er is geen speciale apparatuur nodig om meteoren waar te kunnen nemen. Wanneer het helder is\, volstaat het blote oog. Op een donkere plek zijn meer meteoren te zien dan midden in een stad. \nLinks:\nMeteorenzwerm δ-Aquariden noord in augustus 2024 \n\n\nKomende nachten ideaal om vallende sterren te spotten: ‘Beter kan eigenlijk niet’
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b4-aquariden-noord-in-augustus-2024/
CATEGORIES:Astronomie,Meteoren
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240810T080000
DTEND;TZID=Europe/Amsterdam:20240810T170000
DTSTAMP:20260531T233024
CREATED:20240810T151258Z
LAST-MODIFIED:20240811T174408Z
UID:111787-1723276800-1723309200@www.a3veen.nl
SUMMARY:Meteorenzwerm η-Eridaniden in augustus 2024
DESCRIPTION:De meteorenzwerm η-Eridaniden bereikt op zaterdag 10 augustus 2024\, rond 01:00\, zijn maximum. \nWanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 5 meteoren per uur vallen. Rond 07:30 staat de radiant van de zwerm in het hoogste punt (op 25°) aan de hemel. Het beste moment om η-Eridaniden waar te nemen is op 10 augustus rond 04:00. De radiant van de zwerm staat dan ongeveer 12° boven de zuidoostelijke horizon; niet erg gunstig. Er is dan ieder uur niet meer dan één meteoor zichtbaar van deze zwerm. In totaal zijn er\, door meteoren van andere zwermen en sporadische meteoren\, bij donkere en heldere hemel circa 18–27 meteoren per uur zichtbaar. Op een goed donkere locatie zijn ongeveer 10% meer meteoren te zien dan in een grote stad. De Maan stoort niet. Rond 05:30 gaat het schemeren en om 06:16 komt de Zon op. De meteoren van de meeste zwermen verschijnen niet allemaal op de dag van het maximum. Zo is gedurende circa 4 dagen rondom het maximum ruim 50% van het maximale aantal meteoren van de η-Eridaniden te zien. Tot 3 dagen voor en na het maximum zijn nog meteoren van deze zwerm te herkennen. De zwerm heeft daarmee een relatief korte piek. Er zijn dus nog meer kansen\, voor het geval het in de nacht van het maximum niet helder is. Wel is iedere dag die je eerder voor het maximum\, of later na het maximum waarneemt het aantal meteoren dat zichtbaar is circa 30% kleiner. De typische snelheden van de meteoren in deze zwerm zijn met circa 64 km/s (ongeveer 230.400 km/uur) relatief hoog. Meteoren waarnemen kan zonder speciale instrumenten. Wanneer het helder is\, volstaat het blote oog. Op een donkere plek zijn meer meteoren te zien dan midden in een stad. \nLinks:\nMeteorenzwerm η-Eridaniden in augustus 2024 \nKomende nachten ideaal om vallende sterren te spotten: ‘Beter kan eigenlijk niet’
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b7-eridaniden-in-augustus-2024/
CATEGORIES:Astronomie,Meteoren
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240812T210000
DTEND;TZID=Europe/Amsterdam:20240812T220000
DTSTAMP:20260531T233024
CREATED:20240717T081223Z
LAST-MODIFIED:20240723T195849Z
UID:110848-1723496400-1723500000@www.a3veen.nl
SUMMARY:Meteorenzwerm Perseïden in augustus 2024
DESCRIPTION:De meteorenzwerm Perseïden bereikt op maandag 12 augustus 2024\, rond 21:00\, zijn maximum\, de meteoren van de Perseïden zijn helder en snel en hebben nalichtende sporen. \nWanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 85 meteoren per uur vallen. De radiant van de zwerm staat rond 07:30 in het hoogste punt aan de hemel\, op 84° boven de horizon. Het beste moment om Perseïden waar te nemen is op 13 augustus rond 03:45. De radiant staat op dat moment zo’n 60° boven de horizon\, in het oostnoordoosten. Er zijn dan bij ons ieder uur naar schatting ongeveer 40–55 meteoren van deze zwerm zichtbaar. In totaal zijn er\, door meteoren van andere zwermen en sporadische meteoren\, bij donkere en heldere hemel circa 50–65 meteoren per uur zichtbaar. Op een donkere locatie zijn ongeveer drie keer zoveel meteoren te zien als in dichtbevolkt gebied. De Maan stoort niet. Rond 5:45 uur gaat het schemeren en om 06:21 komt de Zon op. Over het algemeen zijn de de meteoren van een zwerm niet alleen op de dag van het maximum zichtbaar. Zo is gedurende circa 3\,1 dagen rondom het maximum ruim 50% van het maximum aantal meteoren per uur (23) van de Perseïden te zien. Tot 12 dagen voor en na het maximum zijn nog meteoren van deze zwerm te herkennen. De zwerm heeft daarmee een relatief korte piek. Iedere dag verder weg van het maximum zijn er ongeveer 40% minder meteoren per uur te zien. De typische snelheden van de meteoren in deze zwerm zijn met circa 59 km/s (ongeveer 213.840 km/uur) relatief hoog. \nLinks:\nMeteorenzwerm Perseïden in augustus 2024
URL:https://www.a3veen.nl/event/meteorenzwerm-perseiden-in-augustus-2024/
CATEGORIES:Astronomie,Meteoren
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240812T225500
DTEND;TZID=Europe/Amsterdam:20240812T232500
DTSTAMP:20260531T233024
CREATED:20240812T131352Z
LAST-MODIFIED:20240812T192240Z
UID:111859-1723503300-1723505100@www.a3veen.nl
SUMMARY:The Sky at Night - Nicky\, NASA and the Next Frontier (TV BBC Four)
DESCRIPTION:The Sky at Night is a monthly documentary television programme on astronomy produced by the BBC. \nThe show had the same permanent presenter\, Patrick Moore\, from its first broadcast on 24 April 1957 until 7 January 2013. The latter date was a posthumous broadcast\, which followed Moore’s death on 9 December 2012. This made it the longest-running programme with the same presenter in television history. Many early episodes are missing\, either because the tapes were wiped\, thrown out\, or because the episode was broadcast live and never recorded in the first place. \nBeginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nIn this Sky at Night special\, the team talk to Dr Nicola Fox\, NASA’s head of science\, whose life began in the UK. Presenter Chris Lintott chats to Nicky about her early years growing up in Hitchin in Hertfordshire and discovers how she fell in love with the stars. Maggie Aderin-Pocock takes Nicky on a trip down memory lane. Both women studied physics at Imperial College London from the late 80s to early 90s. As they revisit familiar haunts\, they discuss their experiences\, and Maggie finds out about Nicky’s love of astrophysics\, the challenges she overcame and how she landed a dream job at NASA. Along the way\, Maggie and Nicky chat about how the university and science have changed and how new technology and deeper understanding are fuelling the missions for which Nicky is now responsible. As they come across familiar places\, nostalgia hits and the two women unleash their inner child. Finally\, Chris and Nicky discuss her role as the associate administrator for the science mission directorate at NASA\, and Nicky reveals what the exciting plans for future missions may reveal. \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-nicky-nasa-and-the-next-frontier-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240816
DTEND;VALUE=DATE:20240817
DTSTAMP:20260531T233024
CREATED:20240816T194456Z
LAST-MODIFIED:20250828T205306Z
UID:113817-1723766400-1723852799@www.a3veen.nl
SUMMARY:Arecibo Wow! I: An Astrophysical Explanation for the Wow! Signal - publication
DESCRIPTION:The Ohio State University Big Ear radio telescope detected in 1977 the Wow! Signal\, one of the most famous and intriguing signals of extraterrestrial origin. \nArecibo Wow! is a project that aims to find similar signals in archived data from the Arecibo Observatory. From 2017 to 2020\, they observed many targets of interest at 1 to 10 GHz with the 305-meter telescope. Here are the first results of drift scans made between February and May 2020 at 1420 MHz presented. The methods\, frequency\, and bandwidth of these observations are similar to those used to detect the Wow! Signal. However\, the observations are more sensitive\, have better temporal resolution\, and include polarization measurements. They report the detection of narrowband signals (10 kHz) near the hydrogen line similar to the Wow! Signal\, although two-orders of magnitude less intense and in multiple locations. Despite the similarities\, these signals are easily identifiable as due to interstellar clouds of cold hydrogen (HI) in the galaxy. They hypothesize that the Wow! Signal was caused by sudden brightening from stimulated emission of the hydrogen line due to a strong transient radiation source\, such as a magnetar flare or a soft gamma repeater (SGR). These are very rare events that depend on special conditions and alignments\, where these clouds might become much brighter for seconds to minutes. The original source or the cloud might not be detectable\, depending on the sensitivity of the telescope. The precise location of the Wow! Signal might be determined by searching for transient radio sources behind the cold hydrogen clouds in the corresponding region. The hypothesis explains all observed properties of the Wow! Signal\, proposes a new source of false positives in technosignature searches\, and suggests that the Wow! Signal could be the first recorded event of an astronomical maser flare in the hydrogen line. \nLinks:\nArecibo Wow! I: An Astrophysical Explanation for the Wow! Signal \nAn approximation to determine the source of the WOW! Signal – publication \nTurns Out Wow Signal Calculation Were Wrong and It Was Even More Bizarre
URL:https://www.a3veen.nl/event/arecibo-wow-i-an-astrophysical-explanation-for-the-wow-signal-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240819T202600
DTEND;TZID=Europe/Amsterdam:20240819T203000
DTSTAMP:20260531T233024
CREATED:20240819T172803Z
LAST-MODIFIED:20240819T173045Z
UID:112046-1724099160-1724099400@www.a3veen.nl
SUMMARY:Blauwe Supermaan : Volle Maan augustus 2024
DESCRIPTION:Het is Volle Maan\, de Maan staat tegenover de Zon aan de hemel\, hierdoor is de Maan vrijwel de hele nacht zichtbaar. \nDe verlichte kant van de Maan is naar de Aarde gekeerd. Hoewel de Maan als geheel op dit moment erg goed te zien is\, zijn er weinig details op de Maan zichtbaar. Doordat het zonlicht op de Maan ongeveer uit de richting van de Aarde komt zijn er vanaf de Aarde geen schaduwen van kraters en bergen op de Maan te zien\, wat ervoor zorgt dat er nauwelijks contrast is op het maanoppervlak. Daarnaast is de Volle Maan een stoorzender bij het waarnemen van zwakkere objecten aan de sterrenhemel. De Maan staat op een afstand van slechts 361.969 km van de Aarde\, waardoor deze ongeveer 6% groter en circa 11% helderder lijkt dan de gemiddelde Volle Maan\, dat wordt Supermaan genoemd. Gemiddeld is het drie keer per seizoen Volle Maan. In een seizoen met vier Volle Manen wordt de derde de ‘Blauwe Maan’ genoemd. Dit komt elke 2\,7 jaar voor\, daar komt ook de Engelse uitdrukking ‘once in a Blue Moon‘ vandaan. Die wordt gebruikt om te zeggen dat iets niet heel vaak gebeurt. \nLinks:\nVolle maan is blauwe supermaan\, maar blauw (en veel groter) is hij niet
URL:https://www.a3veen.nl/event/blauwe-supermaan-volle-maan-augustus-2024/
CATEGORIES:Astronomie,Maan
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240901
DTEND;VALUE=DATE:20290902
DTSTAMP:20260531T233024
CREATED:20240403T074223Z
LAST-MODIFIED:20240403T174651Z
UID:105492-1725148800-1883001599@www.a3veen.nl
SUMMARY:Proba-3 Missie / Proba-3 Mission
DESCRIPTION:By ESA\, CC BY-SA 3.0 igo\nProba-3 zijn twee minisatellieten van de Europese Ruimtevaartorganisatie (ESA)\, ze zullen samen gelanceerd worden in een langgerekte ellipsvormige baan met een perigeum van 600 km en apogeum van 60.000 km. \nProba-3 wordt gerealiseerd door een consortium van vijftien ESA-lidstaten met als hoofdaannemer het Spaanse SENER\, het Belgische Centre Spatial uit Luik als hoofdaannemer voor de coronagraaf en het Belgische Redwire Space voor assemblage en testen. Tijdens de missie zullen twee satellieten in formatie vliegen en samen een 144 meter lange zonnecoronagraaf vormen om de corona van de zon bij de zonnerand te bestuderen. Eén ruimtevaartuig zal de optische telescoop dragen en het tweede ruimtevaartuig zal een deel van de coronagraaf dragen. Tevens worden tijdens deze missie metingen uitgevoerd voor de positionering van twee ruimtevaartuigen. \nLinks:\nProba-3 Mission
URL:https://www.a3veen.nl/event/proba-3-missie-proba-3-mission/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240909T230000
DTEND;TZID=Europe/Amsterdam:20240909T233000
DTSTAMP:20260531T233024
CREATED:20240909T092129Z
LAST-MODIFIED:20240910T114057Z
UID:112848-1725922800-1725924600@www.a3veen.nl
SUMMARY:The Sky at Night - 2075: Our Place in Space (TV BBC Four)
DESCRIPTION:The Sky at Night is a monthly documentary television programme on astronomy produced by the BBC. \nThe show had the same permanent presenter\, Patrick Moore\, from its first broadcast on 24 April 1957 until 7 January 2013. The latter date was a posthumous broadcast\, which followed Moore’s death on 9 December 2012. This made it the longest-running programme with the same presenter in television history. Many early episodes are missing\, either because the tapes were wiped\, thrown out\, or because the episode was broadcast live and never recorded in the first place. \nBeginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nThe Sky at Night is embarking on a journey into the future\, as we explore how space will revolutionise life on Earth over the next 50 years. As humanity’s reach extends into the cosmos\, we face unprecedented challenges\, from redefining what it means to be an astronaut\, to confronting our own space junk\, to dealing with the impact of life in space on our earth-adapted bodies. With privileged early access to a groundbreaking new report from the Royal Society on humanity’s future in space\, the Sky at Night team are on a mission to find our destiny among the stars – our place in space. \nThe criteria for becoming an astronaut are famously tough. But if we want more people to go to space\, maybe it’s time to start challenging that. That’s what the European Space Agency are doing with their pioneering study Fly!\, which aims to figure out if someone with a physical disability can live and work in space. At the European Astronaut Centre in Cologne\, presenter Chris Lintott meets one of the newest members of ESA’s astronaut reserve: John McFall. John is already a medal-winning Paralympian and orthopaedic surgeon and – as if that wasn’t enough – he is now the first recruit to the Fly! study. Chris discovers what’s involved in John’s extensive and gruelling training\, and finds out what his hopes are for improving access to space. \nTraining for space travel is one thing\, but living on the moon or Mars is a whole new level for humanity. Our bodies are used to gravity\, and being in environments with less gravity than Earth can make them go a bit haywire. At the Royal Society in London\, Maggie Aderin-Pocock meets up with space medicine expert Professor Kevin Fong to find out all about the challenges of keeping humans healthy in space. What would an astronaut on Mars do in a medical emergency? What happens to our bones\, muscles and organs if we are without Earth’s gravity for a long time? And could a baby be born in space? \nWhile Maggie and Kevin unpack those mind-bending questions\, George Dransfield heads to Astroscale in Oxfordshire\, a company who are coming up with clever ways to take out space trash. There are already 130 million pieces of space debris in orbit around our planet\, and that number is ticking up. George meets up with Dr Mekhi Dhesi to learn about Astroscale’s clever missions to clean up space junk – including ELSA-M\, a spacecraft which uses magnets to tow defunct satellites out of orbit\, and Cosmic\, a spacecraft with a robot arm to grab onto debris. \nOur increasing dependence on satellites isn’t just producing a lot of space junk though\, it’s also becoming a nuisance for amateur astronomers around the world. Thankfully\, our resident astronomer Pete Lawrence has some clever tips and tricks for telling satellites and meteors apart\, and using smart telescopes to remove satellite trails from deep sky images. \nFinally\, back at the Royal Society\, Maggie sits down with Professor Suzie Imber\, planetary scientist and co-chair of the groundbreaking Space: 2075 report. Together\, they unpack some of the biggest questions about our journey into the cosmos over the next 50 years. How do we make sure space benefits us all\, including those of us still down here on Earth? Should we be concerned about the commercialisation of space travel? And will there really be people on Mars by 2075? \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-2075-our-place-in-space-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
END:VCALENDAR