File:Hubble Spots Galaxy’s Dramatic Details.jpg
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Summary
[edit]DescriptionHubble Spots Galaxy’s Dramatic Details.jpg |
English: Some of the most dramatic events in the universe occur when certain stars die — and explode catastrophically in the process.
Such explosions, known as supernovae, mainly occur in a couple of ways. In one scenario, a massive star depletes its fuel at the end of its life, becoming dynamically unstable and unable to support its bulk, causing it to collapse inward and violently explode. In another outcome, a white dwarf (the dense remnant of a once-normal star) in an orbiting stellar couple siphons more mass off its companion than it is able to support, igniting runaway nuclear fusion in its core and beginning the supernova process. Both types result in an intensely bright object in the sky that can rival the light of a whole galaxy. In the last 20 years the galaxy NGC 5468, visible in this image, has hosted a number of observed supernovae of both the aforementioned types: SN 1999cp, SN 2002cr, SN2002ed, SN2005P and SN2018dfg. Despite being just over 130 million light-years away, the orientation of the galaxy with respect to us makes it easier to spot these new “stars” as they appear; we see NGC 5468 face on, meaning we can see the galaxy’s loose, open spiral pattern in beautiful detail in images such as this one from the NASA/ESA Hubble Space Telescope. Image credit: ESA/Hubble & NASA, W. Li et al. |
Date | |
Source | https://www.flickr.com/photos/24662369@N07/49182637091/ |
Author | NASA Goddard Photo and Video |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/49182637091 (archive). It was reviewed on 21 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 February 2020
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Credit/Provider | ESA/Hubble & NASA, W. Li et al. Acknowledgements: Judy Schmidt (Geckzilla) |
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Source | ESA/Hubble |
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Date and time of data generation | 06:00, 2 December 2019 |
Width | 3,979 px |
Height | 3,897 px |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop 21.0 (Windows) |
File change date and time | 07:12, 6 December 2019 |
Exif version | 2.31 |
Color space | sRGB |
Date and time of digitizing | 22:28, 17 June 2019 |
Date metadata was last modified | 02:12, 6 December 2019 |
Unique ID of original document | xmp.did:2c175486-619a-df42-ad48-92d20b52ec34 |
Keywords | NGC 5468 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |