M101: Spiral Galaxy in Ursa Major
M101: Spiral Galaxy in Ursa Major |
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M101 |
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Object Data |
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| Object type: | Galaxy | ||
| Size: | 29 x 27 arcmin | ||
| Magnitude: | 7.9 | ||
| Constellation: | Ursa Major | ||
| Distance: | 21 million light years | ||
Notes: |
M101 is noted for its high population of large and
bright HII regions. H II regions contain enormous clouds of high density molecular hydrogen gas contracting under their own gravitational force triggering strong star formation.
These regions appear red in the current image. |
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Exposure Data |
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| Date: | 04/30/22 | ||
| Location: | Lockwood Observatory 2, Descanso, CA | ||
| Telescope: | DSI RC10c; fl 1867mm at f/7.3 | ||
| Camera: | FLI 6303e with Astrodon LRGB filters | ||
| Mount: | AP1100 GTO3 | ||
| Exposure time: | 8 x 15 min of Lum (2 hrs), 4 x 10 min each RGB (120 min) | ||
| Exposure time total: | 4 hrs | ||
| Notes: | Imaged during inaugural weekend at new Observatory Cropped. FOV = 36.9 x 31.2 arcmin. Image Scale - 0.99 arcsec/pixel |
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