File:NASA Unveils Celestial Fireworks as Official Hubble 25th Anniversary Image.jpg
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[edit]DescriptionNASA Unveils Celestial Fireworks as Official Hubble 25th Anniversary Image.jpg |
{{mld Čeština: Hvězdokupa Westerlund 2 v galaxii Mléčná dráha má odhadovaný věk pouze 1 - 2 milióny let a obsahuje nejjasnější, nejteplejší a nejhmotnější známé hvězdy.
Deutsch: Der Sternhaufen Westerlund 2 in der Milchstraße mit einem geschätzten Alter von ein bis zwei Millionen Jahren. Er enthält einige der heißesten, hellsten und massereichsten der bekannten Sterne. Der Sternenhaufen befindet sich in einem Sternentstehungsgebiet, das als Gum 29 bekannt ist und sich 20 000 Lichtjahre entfernt im Sternbild „Kiel des Schiffs“ befindet.
English: The star cluster Westerlund 2 in the Milky Way galaxy, with an estimated age of about one or two million years. It contains some of the hottest, brightest, and most massive stars known. The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina.
Español: Imagen de Westerlund 2, un cúmulo estelar en la Vía Láctea, con una edad estimada de uno o dos millones de años. Contiene algunas de las estrellas más calientes, brillantes y masivas conocidas. El grupo reside dentro de una zona de formación estelar conocida como Gum 29, en la constelación Carina a una distancia de 20.000 años luz.
Nederlands: De sterrenhoop Westerlund 2 in de Melkweg bevat enkele van de heetste, helderste en meest massieve sterren die de mens kent
Polski: Gromada gwiazd Westerlund 2 w galaktyce Drogi Mlecznej, której wiek szacuje się na 1–2 miliony lat. W jej skład wchodzą jedne z najgorętszych, najjaśniejszych i najmasywniejszych znanych gwiazd. Gromada znajduje się w obszrze formowania gwiazd znanym jako Gum 29, położonym 20.000 lat świetlnych stąd w gwiazdozbiorze Kila.
Português: Imagem de Westerlund 2, um aglomerado estelar na Via Láctea, com uma idade estimada de um ou dois milhões de anos.
|en=April 23, 2015: NASA and ESA are celebrating the Hubble Space Telescope's silver anniversary of 25 years in space by unveiling some of nature's own fireworks — a giant cluster of about 3,000 stars called Westerlund 2. The cluster resides inside a vibrant stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. The comparatively young, 2-million-year-old star cluster contains some of our galaxy's hottest, brightest, and most massive stars. The largest stars are unleashing a torrent of ultraviolet light and hurricane-force winds that etch away the enveloping hydrogen gas cloud. This creates a fantasy celestial landscape of pillars, ridges, and valleys. ABOUT THIS IMAGE: The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in the 25th anniversary NASA Hubble Space Telescope image to commemorate a quarter century of exploring the solar system and beyond since its launch on April 24, 1990. "Hubble has completely transformed our view of the universe," said John Grunsfeld, astronaut and associate administrator of NASA's Science Mission Directorate. "This vista of starry fireworks and glowing gas is a fitting image for our celebration of 25 years of amazing Hubble science." The sparkling centerpiece of Hubble's silver anniversary fireworks is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light-years away from Earth in the constellation Carina. To capture this image, Hubble’s Wide Field Camera 3 pierced through the dusty veil shrouding the stellar nursery in near-infrared light, giving astronomers a clear view of the nebula and the dense concentration of stars in the central cluster. The cluster measures between 6 to 13 light-years across. The giant star cluster is only about 2 million years old and contains some of our galaxy's hottest, brightest, and most massive stars. Some of its heftiest stars unleash torrents of ultraviolet light and hurricane-force winds of charged particles that etch at the enveloping hydrogen gas cloud. The nebula reveals a fantasy landscape of pillars, ridges, and valleys. The pillars, composed of dense gas and thought to be incubators for new stars, are a few light-years tall and point to the central star cluster. Other dense regions surround the pillars, including reddish-brown filaments of gas and dust. The brilliant stars sculpt the gaseous terrain of the nebula and help create a successive generation of baby stars. When the stellar winds hit dense walls of gas, the shockwaves may spark a new torrent of star birth along the wall of the cavity. The red dots scattered throughout the landscape are a rich population of newly forming stars still wrapped in their gas-and-dust cocoons. These tiny, faint stars are between 1 million and 2 million years old — relatively young stars — that have not yet ignited the hydrogen in their cores. The brilliant blue stars seen throughout the image are mostly foreground stars. Because the cluster is very young — in astronomical terms — it has not had time to disperse its stars deep into interstellar space, providing astronomers with an opportunity to gather information on how the cluster formed by studying it within its star-birthing environment. The image's central region, which contains the star cluster, blends visible-light data taken by Hubble's Advanced Camera for Surveys with near-infrared exposures taken by the Wide Field Camera 3. The surrounding region is composed of visible-light observations taken by the Advanced Camera for Surveys. The red colors in the nebulosity represent hydrogen; the bluish-green hues are predominantly oxygen. The original observations of Westerlund 2 were obtained by the science team: Antonella Nota (ESA/STScI), Elena Sabbi and Carol Christian (STScI), Eva Grebel and Peter Zeidler (Astronomisches Rechen-Institut Heidelberg), Monica Tosi (INAF, Osservatorio Astronomico di Bologna), Alceste Bonanos (National Observatory of Athens, Astronomical Institute), and Selma de Mink (University of Amsterdam). Follow-up observations were made by the Hubble Heritage team: Zolt Levay (STScI), Max Mutchler, Jennifer Mack, Lisa Frattare, Shelly Meyett, Mario Livio, Carol Christian (STScI/AURA), and Keith Noll (NASA/GSFC). Object Name: Westerlund 2 Image Type: Astronomical 25th Anniversary Image: Westerlund 2 Star cluster Image facts: Constellation: Carina Distance: 20,000 light-years (6,130 parsecs) Instrument: Advanced Camera for Surveys and Wide Field Camera 3 Image Filters: ACS/WFC: F555W (V), F814W (I); WFC3/IR: F125W (J) |fr=L'amas stellaire Westerlund 2, dans la constellation de la Carène.
|pl=25 kwietnia 2015: NASA i ESA świętują srebrny jubileusz 25-lecia przebywania teleskopu Hubble’a w kosmosie prezentując fajerwerki stworzone przez naturę – gigantyczną gromadę około 3000 gwiazd zwaną Westerlund 2. Znajduje się ona w mocno aktywnym obszrze formowania gwiazd znanym jako Gum 29, położonym 20.000 lat świetlnych stąd w gwiazdozbiorze Kila. Stosunkowo młoda, licząca 2 miliony lat gromada zawiera niektóre z najgorętszych, najjaśniejszych i najmasywniejszych gwiazd w naszej galaktyce. Największe gwiazdy uwalniają ogromne ilości promieniowania ultrafioletowego i huraganowe wiatry, które rozpraszają chmurę otaczającego je wodoru. Tworzy to fantazyjne niebiańskie krajobrazy kolumn, grzbietów i dolin. }} |
Date | |
Source | http://hubblesite.org/newscenter/archive/releases/2015/12/image/a/warn/ (image source); see also http://www.spacetelescope.org/images/heic1509a/ |
Author | NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 Science Team |
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This image was selected as picture of the day on Wikimedia Commons for 1 January 2019. It was captioned as follows: English: The star cluster Westerlund 2 in the Milky Way galaxy, with an estimated age of about one or two million years. It contains some of the hottest, brightest, and most massive stars known. The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. Other languages:
Čeština: Hvězdokupa Westerlund 2 v galaxii Mléčná dráha má odhadovaný věk pouze 1 - 2 milióny let a obsahuje nejjasnější, nejteplejší a nejhmotnější známé hvězdy. Deutsch: Der Sternhaufen Westerlund 2 in der Milchstraße mit einem geschätzten Alter von ein bis zwei Millionen Jahren. Er enthält einige der heißesten, hellsten und massereichsten der bekannten Sterne. Der Sternenhaufen befindet sich in einem Sternentstehungsgebiet, das als Gum 29 bekannt ist und sich 20 000 Lichtjahre entfernt im Sternbild „Kiel des Schiffs“ befindet. English: The star cluster Westerlund 2 in the Milky Way galaxy, with an estimated age of about one or two million years. It contains some of the hottest, brightest, and most massive stars known. The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. Español: Imagen de Westerlund 2, un cúmulo estelar en la Vía Láctea, con una edad estimada de uno o dos millones de años. Contiene algunas de las estrellas más calientes, brillantes y masivas conocidas. El grupo reside dentro de una zona de formación estelar conocida como Gum 29, en la constelación Carina a una distancia de 20.000 años luz. Nederlands: De sterrenhoop Westerlund 2 in de Melkweg bevat enkele van de heetste, helderste en meest massieve sterren die de mens kent Polski: Gromada gwiazd Westerlund 2 w galaktyce Drogi Mlecznej, której wiek szacuje się na 1–2 miliony lat. W jej skład wchodzą jedne z najgorętszych, najjaśniejszych i najmasywniejszych znanych gwiazd. Gromada znajduje się w obszrze formowania gwiazd znanym jako Gum 29, położonym 20.000 lat świetlnych stąd w gwiazdozbiorze Kila. Português: Imagem de Westerlund 2, um aglomerado estelar na Via Láctea, com uma idade estimada de um ou dois milhões de anos. |
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This image was selected as picture of the day on Bengali Wikipedia.
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Licensing
[edit]Public domainPublic domainfalsefalse |
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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current | 05:58, 7 December 2016 | ![]() | 8,919 × 6,683 (63.51 MB) | Huntster (talk | contribs) | Reverted to version as of 10:26, 25 April 2015 (UTC); use image from Hubblesite rather than the one with odd colouring. This is also the one voted on for Commons FP. |
02:36, 8 June 2015 | ![]() | 8,919 × 6,683 (79.96 MB) | LuisArmandoRasteletti (talk | contribs) | Larger version from Westerlund 2 | |
10:26, 25 April 2015 | ![]() | 8,919 × 6,683 (63.51 MB) | LuisArmandoRasteletti (talk | contribs) | NASA Unveils Celestial Fireworks as Official Hubble 25th Anniversary Image | |
09:30, 25 April 2015 | ![]() | 1,200 × 899 (1.46 MB) | LuisArmandoRasteletti (talk | contribs) | User created page with UploadWizard |
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File change date and time | 17:31, 9 April 2015 |
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