| Object: | NGC 4236 |
| Date of exposures: | 03.04.2017, 08.04.2017, 18.04.2017 |
| Distance: | 14,5 Mio. Lightyears |
| Exposures: | Lum: 50 x 600 Sec., RGB: 32 x 360 Sec., Sum: 11,5 hrs. |
| Telescope: | 10'', F4 Newton |
| Focal length: | 1000 mm |
| Filter: | Astrodon RGB, E-Series, Astronomik CLS CCD |
| Camera: | Atik 460Exm |
| Guiding: | Off Axis Guider, Lodestar |
| Mount: | EQ8 |
NGC 4236 is a face on barred spiral galaxy with low surface brightness, located in Draco. It appears to be a part of the M81 local group of galaxies, although some references put it just outside of the M81 group. In either case, it is about 12 to 14,5 million light years distant. Because of it's low surface brightness there appear to be few images of this galaxy on amateur websites. Being a bit closer than M81, yet much less bright, and may be obscurred to some degree. The exact cause of this discrepancy in brightness is not known.
See also the blog entry of the imaging session...
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