File:NGC 2685 (noao-n2685).jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 600 × 600 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,024 × 1,024 pixels | 1,500 × 1,500 pixels.
Original file (1,500 × 1,500 pixels, file size: 1.16 MB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary
[edit]DescriptionNGC 2685 (noao-n2685).jpg |
English: NGC2685 is an interesting polar ring galaxy in the constellation Ursa Major. It is also called the Helix Galaxy or the Pancake Galaxy. It has a set of unusual whorls, or helical filaments, surrounding the central spindle of a relatively normal S0 galaxy, and was called the most unusual galaxy in the Shapley-Ames catalogue. Sometimes classified as SB0(pec), NGC2685 is odd enough to appear as number 336 in Arp's Atlas of Peculiar Galaxies. Polar ring galaxies are dynamically peculiar, having a ring of gas, stars and dust orbiting in a plane almost perpendicular to the normal flat plane of the host galaxy, that is, they contain two separate velocity systems whose axes are perpendicular. The most popular view says that such galaxies are the result of an interaction, up to and including a complete merger with another galaxy. NGC2685 also shows weak emission lines in the optical, and none in the infrared, making it an atypical member of the class of active galaxies called LINERS. The present picture is a color composite of CCD images from the 0.9-meter telescope of the Kitt Peak National Observatory, near Tucson, Arizona, taken in November 1998. Image size 8.5 arc minutes. |
Date | 30 June 2020, 21:33:00 (upload date) |
Source | NGC 2685 |
Author | NOIRLab/AURA/NSF |
Other versions |
|
Licensing
[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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 20:16, 17 September 2023 | 1,500 × 1,500 (1.16 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/noao-n2685.jpg via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
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.
Image title |
|
---|---|
Credit/Provider | NOIRLab/AURA/NSF |
Source | NSF's NOIRLab |
Short title |
|
Usage terms |
|
Date and time of data generation | 21:33, 30 June 2020 |
Keywords |
|
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |
Structured data
image/jpeg
1,500 pixel
1,500 pixel
1,218,329 byte
31b454589cd55f1904da6577e9093aa08b3061b0
30 June 2020
5hpyxpm3ci17h24t3hns2nwqom0n3t9d20quhn0c7yw5uw1xgz
Hidden categories: