File:Dark matter surplus (50381709811).jpg
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Summary
editDescriptionDark matter surplus (50381709811).jpg |
Resting on the tail of the Great Bear in the constellation of Ursa Major, lies NGC 5585, a spiral galaxy that is more than it appears. The many stars, and dust and gas clouds that make up NGC 5585, shown here in this Hubble image, contribute only a small fraction of the total mass of the galaxy. As in many galaxies, this discrepancy can be explained by the abundant yet seemingly invisible presence of dark matter. The stellar disc of the galaxy extends over 35 000 light-years across. When compared with galaxies of a similar shape and size, NGC 5585 stands out by having a notably different composition: Contributing to the total mass of the galaxy, it contains a far higher proportion of dark matter. Hotspots of star formation can be seen along the galaxy’s faint spiral arms. These regions shine a brilliant blue, contrasting strikingly against the ever-black background of space. Credits: ESA/Hubble & NASA, R. Tully; CC BY 4.0 Acknowledgement: Gagandeep Anand |
Date | |
Source | Dark matter surplus |
Author | European Space Agency |
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This image was originally posted to Flickr by europeanspaceagency at https://flickr.com/photos/37472264@N04/50381709811. It was reviewed on 3 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
3 December 2020
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current | 14:51, 3 December 2020 | ![]() | 6,568 × 6,709 (35.46 MB) | Eyes Roger (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Date and time of data generation | 16:04, 19 January 2020 |
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Orientation | Normal |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop 21.2 (Windows) |
File change date and time | 10:09, 2 September 2020 |
Y and C positioning | Centered |
Exif version | 2.31 |
Date and time of digitizing | 16:04, 19 January 2020 |
Meaning of each component |
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Supported Flashpix version | 1 |
Color space | sRGB |
Saturation | Normal |
Sharpness | Normal |
IIM version | 4 |
Bits per component |
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Height | 6,709 px |
Width | 6,568 px |
Pixel composition | RGB |
Number of components | 3 |
Date metadata was last modified | 12:09, 2 September 2020 |
Unique ID of original document | 5848FC76D20F5A6BCC4FCED3EBCEC5F5 |