File:A Galaxy of Birth and Death.jpg
![File:A Galaxy of Birth and Death.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/A_Galaxy_of_Birth_and_Death.jpg/800px-A_Galaxy_of_Birth_and_Death.jpg?20230622123804)
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Summary
[edit]DescriptionA Galaxy of Birth and Death.jpg |
English: Captured by the Mosaic camera on the Nicholas U. Mayall 4-meter Telescope at the Kitt Peak National Observatory (KPNO), a Program of NSF’s NOIRLab, the spiral galaxy NGC 2403, also known as Caldwell 7, highlights the dynamic birth and death of stars. The glowing red spots dotting the galaxy are clouds of ionized hydrogen gas known as HII regions. These areas indicate the birth of young, hot stars, which often ionize nearby hydrogen gas during their dynamic formation. Conversely NGC 2403 has also been the home of the brightest and nearest observed death of a star this millennium: the supernova SN 2004dj. The region in NGC 2403 that contained the star which became a supernova in 2004 had been observed both before, during and after the explosion, providing a fascinating timeline of the impact of the event. Since star formation occurs on a timescale much longer than a human lifetime, the process has to be pieced together like a puzzle through observations of different stars in different stages of the stellar life cycle. Itis very satisfying for astronomers to be able to observe supernovae, which occur incredibly quickly even by human standards, to confirm and develop theories of the life cycle of stars.
Español: Captured by the Mosaic camera on the Nicholas U. Mayall 4-meter Telescope at the Kitt Peak National Observatory (KPNO), a Program of NSF’s NOIRLab, the spiral galaxy NGC 2403, also known as Caldwell 7, highlights the dynamic birth and death of stars. The glowing red spots dotting the galaxy are clouds of ionized hydrogen gas known as HII regions. These areas indicate the birth of young, hot stars, which often ionize nearby hydrogen gas during their dynamic formation. Conversely NGC 2403 has also been the home of the brightest and nearest observed death of a star this millennium: the supernova SN 2004dj. The region in NGC 2403 that contained the star which became a supernova in 2004 had been observed both before, during and after the explosion, providing a fascinating timeline of the impact of the event. Since star formation occurs on a timescale much longer than a human lifetime, the process has to be pieced together like a puzzle through observations of different stars in different stages of the stellar life cycle. It is very satisfying for astronomers to be able to observe supernovae, which occur incredibly quickly even by human standards, to confirm and develop theories of the life cycle of stars. |
Date | |
Source | https://noirlab.edu/public/images/iotw2221a/?nocache=true |
Author |
KPNO/NOIRLab/NSF/AURA/M. T. Patterson (New Mexico State University) Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani & D. de Martin (NSF’s NOIRLab) |
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This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:38, 22 June 2023 | ![]() | 6,631 × 4,662 (6.08 MB) | C messier (talk | contribs) | full size |
13:32, 29 March 2023 | ![]() | 1,280 × 900 (234 KB) | Yiseth Romero (talk | contribs) | Uploaded a work by KPNO/NOIRLab/NSF/AURA/M. T. Patterson (New Mexico State University) Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani & D. de Martin (NSF’s NOIRLab) from https://noirlab.edu/public/images/iotw2221a/?nocache=true with UploadWizard |
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Credit/Provider | KPNO/NOIRLab/NSF/AURA/M. T. Patterson (New Mexico State University)Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani & D. de Martin (NSF’s NOIRLab) |
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Source | NSF's NOIRLab |
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Date and time of data generation | 12:00, 25 May 2022 |
Software used | Adobe Photoshop 21.0 (Windows) |
File change date and time | 14:54, 12 March 2020 |
Date and time of digitizing | 19:30, 24 January 2020 |
Date metadata was last modified | 15:54, 12 March 2020 |
Unique ID of original document | xmp.did:d363cfad-0832-ff45-8e8f-432f33952b92 |
Keywords | NGC 2403 |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |