Dosya:Caldwell 109.jpg
Caldwell_109.jpg (464 × 471 pikselan, ebatê dosya: 209 KB, MIME tipê cı: image/jpeg)
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Xulasa
ŞınasnayışCaldwell 109.jpg |
English: The final item in the Caldwell catalog, Caldwell 109 resembles a phantom snowball. The glowing shroud of gas was shed by its central star in a final act before dying. Like all stars, the one in the middle of this nebula spent its life participating in a precarious balance act, with the outward pressure generated by nuclear fusion countered by the inward pull of gravity. During most of the star’s lifetime the two held an uneasy truce, making the star a giant, controlled nuclear bomb.
When the star began to exhaust its hydrogen fuel, however, there wasn’t enough pressure to fight off gravity. The core began to contract, becoming denser and hotter, triggering the fusion of helium into carbon. The heat produced caused the star’s outer layers of gas to expand, transforming the star into a red giant. After spending about a billion years as a red giant, the star began a 10,000-year process to shed its outer layers of gas, ultimately uncovering the remaining core of the star — a white dwarf. High-energy radiation from the white dwarf makes the cast-off gaseous layers glow, creating a ghostly specter in the night sky. In tens of thousands of years, Caldwell 109 will fade into darkness as the white dwarf cools like an ember until it finally burns out completely. Planetary nebulas like Caldwell 109 are especially interesting to scientists because they represent a future stage of our own Sun, which is destined to meet a similar fate in about 6 billion years. This Hubble image was taken in visible and infrared light using the Wide Field and Planetary Camera 2 as part of a survey of planetary nebulas. The observations revealed many surprisingly intricate, glowing patterns spun into space by aging stars: pinwheels, lawn-sprinkler–style jets, elegant goblet shapes and even some that look like a rocket engine’s exhaust. Caldwell 109 was discovered by John Herschel in 1835 and subsequently cataloged as NGC 3195. It lies 5,500 light-years away toward the Chamaeleon constellation. It is visible year-round from the Southern Hemisphere but is highest in the autumn. With a magnitude of 11.6 it can be a challenging target to spot for small telescopes. Through a moderate-sized telescope, Caldwell 109 will look like a swollen star. For more information about Hubble’s observations of Caldwell 109, see: www.spacetelescope.org/images/opo9738c12/ hubblesite.org/contents/news-releases/1997/news-1997-38.html Credit: NASA, ESA and Howard Bond (STScI); Processing: Gladys Kober (NASA/Catholic University of America) For Hubble's Caldwell catalog site and information on how to find these objects in the night sky, visit: www.nasa.gov/content/goddard/hubble-s-caldwell-catalog |
Tarix | |
Çıme | https://www.flickr.com/photos/144614754@N02/49214703236/ |
Nuştekar | NASA Hubble |
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/49214703236 (archive). It was reviewed on 23 Sıbate 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
23 Sıbate 2020
Items portrayed in this file
Dewrê mocnayışi
some value
copyrighted English
17 Kanun 1997
source of file English
file available on the internet English
media type English
image/jpeg
checksum English
dd64a1d96a9c460367893bc8c1279ab4b3f9b903
data size English
214,053 byte
471 pixel
464 pixel
Verêniya dosya
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Tarix/Zeman | Resımo qıckek | Ebadi | Karber | Mışewre | |
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nıkayên | 20:02, 23 Şıbat 2020 | 464 - 471 (209 KB) | Killarnee | User created page with UploadWizard |
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Metadata
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Image title |
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Date and time of data generation | 06:00, 17 Kanun 1997 |
Sernuşteyo qıckek | NGC 3195 |
Kredi/Destegdaren | Howard Bond (ST ScI) and NASA/ES |
Çıme | ESA/Hubble |
Weşanayoğ | ESA/Hubble |
Şertê karkerdışi |
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Vatışê dosyada JPEG'i | This image is a part of the Hubble Gallery of Planetary Nebulae. |
Berhetkerdış | Normal |
Qerarê verıniye | 72 dpi |
Rezulasyanê derganiye | 72 dpi |
Karenaye nusnerek | Adobe Photoshop CC 2018 (Macintosh) |
File change date and time | 10:17, 15 Tışrino Peyên 2019 |
pozisyonê Y u C | Wertekerdış |
Exif version | 2.31 |
Demê dijitalkerdışi | 17:49, 9 Kanun 2003 |
Meaning of each component |
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Supported Flashpix version | 1 |
Color space | sRGB |
Verqaydê IIM | 4 |
Çekuyên kıliti |
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Bits per component |
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Compression scheme | Uncompressed |
Height | 471 px |
Width | 464 px |
Compozisyonê pixeli | RGB |
teneyê parçeyi | 3 |
Melumatê irtıbati |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Babeta medyay | Observation |
Malumatê metamalumati peyd timarya | 05:17, 15 Tışrino Peyên 2019 |
Xasiya ID ya dokuman de orcinali | adobe:docid:photoshop:a591f0f7-2a67-11d8-8281-a580eb5b60aa |
Weziyetê telifi | Telifiya waziyeta eyara |