Discovered by the German astronomer Johann Elert Bode in 1774, M81 is one of the brightest galaxies in the night sky. It is located 11.6 million light-years from Earth in the constellation Ursa Major and has an apparent magnitude of 6.9.
Sample data from Hellas Sky - The European Gate for Deep-Sky-Photography
| Mount |
10Micron GM3000 HPS | Award/published | AAPOD2 |
| Telescope | Planewave CDK-17 | Astrobin | -->
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| Camera | QHY600ProM/Binning 2×2 at -10°C |
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| Exposure | L 145 x 120'' / RGB 37-43-44 x120'' |
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| Total |
8h 58min |
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| Software |
PixInsight |
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| Location |
Hellas Sky - Greece, Europe | ||