File:M20 (NGC, Trifid) and M21 (NGC 6531) (noao-m21a20).jpg
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![File:M20 (NGC, Trifid) and M21 (NGC 6531) (noao-m21a20).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/M20_%28NGC%2C_Trifid%29_and_M21_%28NGC_6531%29_%28noao-m21a20%29.jpg/600px-M20_%28NGC%2C_Trifid%29_and_M21_%28NGC_6531%29_%28noao-m21a20%29.jpg?20230917185953)
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[edit]DescriptionM20 (NGC, Trifid) and M21 (NGC 6531) (noao-m21a20).jpg |
English: TheTrifid Nebula, M20 (upper left, NE) and the open star cluster M21 (lower right, SW), are close enough together on the sky that they both appear in this wide-field, 51 arc minute square picture taken with the Burrell Schmidt telescope of Case Western Reserve University's Warner and Swasey Observatory located on Kitt Peak, near Tucson, Arizona. The single set of BVR images was taken in June 1996, during the Research Experiences for Undergraduates (REU) program operated at the Kitt Peak National Observatory and supported by the National Science Foundation. Higher resolution images are separately available for M20 and M21. |
Date | 30 June 2020, 21:34:00 (upload date) |
Source | M20 (NGC, Trifid) and M21 (NGC 6531) |
Author | REU program/NOIRLab/NSF/AURA |
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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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current | 18:59, 17 September 2023 | ![]() | 1,500 × 1,500 (1.34 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/noao-m21a20.jpg via Commons:Spacemedia |
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Credit/Provider | REU program/NOIRLab/NSF/AURA |
Source | NSF's NOIRLab |
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Date and time of data generation | 21:34, 30 June 2020 |
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950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |