File:NGC 2685- A Helix in the Sky (iotw2415a).jpg
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[edit]DescriptionNGC 2685- A Helix in the Sky (iotw2415a).jpg |
English: The very unusual galaxy NGC 2685, also known as the Helix Galaxy, is located about 40 million light-years away in the constellation Ursa Major. This image was captured by the Gemini North telescope, one half of the International Gemini Observatory, operated by NSF NOIRLab which is funded by the U.S. National Science Foundation. NGC 2685 is a peculiar lenticular galaxy known as a polar ring galaxy. A ring of gas, stars, and dust orbits NGC 2685 perpendicular to the flat plane of the host galaxy. This odd crossing of planes is believed to be evidence of galaxy interactions, mergers, or tidal accretion events. Current research suggests that the present structure of NGC 2685 was formed when it captured material from another galaxy, which was strung out into an encircling ring. This galaxy is one of our closest known polar ring galaxies and is therefore one of the easiest of its kind to study. Owing to its odd characteristics, it has been called the most unusual galaxy in the Shapley-Ames Catalog of Bright Galaxies and appears as number 336 in astronomer Halton Arp's Atlas of Peculiar Galaxies.You can see another view of this galaxy, captured in 1998 by the 0.9-meter telescope of Kitt Peak National Observatory, a Program of NSF NOIRLab, here. |
Date | 10 April 2024 (upload date) |
Source | NGC 2685: A Helix in the Sky |
Author | International Gemini Observatory/NOIRLab/NSF/AURA/L. Bassino Image processing: J. Miller (Gemini Observatory/NSF’s NOIRLab), M. Rodriguez (Gemini Observatory/NSF’s NOIRLab), & M. Zamani (NSF’s NOIRLab) |
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[edit]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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current | 08:14, 11 April 2024 | 2,495 × 1,821 (984 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/iotw2415a.jpg via Commons:Spacemedia |
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Source | NSF's NOIRLab |
Credit/Provider | International Gemini Observatory/NOIRLab/NSF/AURA/L. BassinoImage processing: J. Miller (Gemini Observatory/NSF’s NOIRLab), M. Rodriguez (Gemini Observatory/NSF’s NOIRLab), & M. Zamani (NSF’s NOIRLab) |
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Date and time of data generation | 12:00, 10 April 2024 |
Software used | Adobe Photoshop 25.3 (Windows) |
File change date and time | 00:01, 27 March 2024 |
Date metadata was last modified | 01:01, 27 March 2024 |
Date and time of digitizing | 01:22, 5 December 2023 |
Unique ID of original document | B9134413CDEB6F1B9843564B74969D38 |
Keywords | NGC 2685 |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |