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Summary
| Description |
English: The irregular star cluster M103, or NGC581, is a distant cluster in the constellation Cassiopeia. One of the more remote open clusters, at about 8000 light-years, M103s relatively small angular size still corresponds to a sizable 14 light-year diameter (this image is only 8.6 arc minutes across). The bright binary (upper right, NW) is not part of the cluster. M103 may be over 20 million years old (there seems to be some dispute over its actual age). M103 is one of the 'extra' objects added from Méchain's observations but not actually observed by Messier. This true-color picture was created from fifteen images taken in the BVR pass-bands at the Kitt Peak National Observatory's 2.1-meter telescope, during the night of December 24th 2000 (yes, Christmas Eve). |
| Date | 30 June 2020, 21:53:00 (upload date) |
| Source | M103, NGC 581 |
| Author | Hillary Mathis, N.A.Sharp/NOIRLab/NSF/AURA |
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Licensing
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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. |
  This file is licensed under the Creative Commons Attribution 4.0 International license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:02, 17 September 2023 | | 1,700 × 1,700 (1.44 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/noao-m103.jpg via Commons:Spacemedia |
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