Image:Andromeda active core.jpg
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| Description |
This artist's concept shows a view across a mysterious disk of young, blue stars encircling a supermassive black hole at the core of the neighboring Andromeda Galaxy (M31). The region around the black hole is barely visible at the center of the disk. The background stars are the typical older, redder population of stars that inhabit the cores of most galaxies. Spectroscopic observations by the Hubble Space Telescope reveal that the blue light consists of more than 400 stars that formed in a burst of activity about 200 million years ago. The stars are tightly packed in a disk that is only a light-year across. Under the black hole's gravitational grip, the stars are traveling very fast: 2.2 million miles an hour (3.6 million kilometers an hour, or 1,000 kilometers a second) Object Names: M31, Andromeda Galaxy, NGC 224. |
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September 20, 2005 01:00 PM (EDT) |
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| Permission (Reusing this image) |
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| Date/Time | Dimensions | User | Comment | |
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| current | 05:26, 7 September 2007 | 4,800×3,600 (18.59 MB) | Alnokta | ({{Information |Description=This artist's concept shows a view across a mysterious disk of young, blue stars encircling a supermassive black hole at the core of the neighboring Andromeda Galaxy (M31). The region around the black hole is barely visible at t) |
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| Width | 5000 |
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| Height | 3750 |
| Compression scheme | 5 |
| Pixel composition | RGB |
| Image title | Andromeda Galaxy Double-Nucleus, Painting by Adolf Schaller based on Hubble Space Telescope observations by Tod Lauer, et al. |
| Orientation | Normal |
| Number of components | 3 |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Data arrangement | chunky format |
| Software used | Adobe Photoshop CS2 Windows |
| File change date and time | 15:28, 16 September 2005 |
| Author | Adolf Schaller |
| Copyright holder | Copyright 2005 by STScI/A.A.Schaller |
| Color space | sRGB |
