The Pinwheel Galaxy M101 (NGC 5457) is a spiral galaxy in constellation Ursa Major. It is about 21 million ly away from earth. The apparent magnitude of this galaxy is ~7.8 mag. Therefore, this object is well suited for astrophotography with equipment like mine.
There is also a full resolution image of M101 available. UPDATE: I finally decided to put this picture into My Top Astro-Pics gallery.
 | Date | 2014/02/23 |
 | Location | Böblingen / Germany |
 | Object | Pinwheel Galaxy (M101) |
 | Camera | Atik383L+ |
 | Guiding | yes, DMK31AU03.AS via OAG |
 | Telescope | 8" GSO Newtonian |
 | Barlow lens | none |
 | Mount | EQ6Syntrek |
 | Cooling | -15°C |
 | Luminance | 12x 800s, bin: 1x1 |
 | Red | 9x 450s, bin: 2x2 |
 | Green | 9x 450s, bin: 2x2 |
 | Blue | 9x 450s, bin: 2x2 |
 | Dark | 10x |
 | Flat | 10x |
 | Total exposure | ~6h02min |
Clear skies!
Last updated: June 20, 2022 at 9:58 am