M 109
Barred spiral galaxy in the constellation Big Bear.
Barred spiral galaxy in the constellation Big Bear.
Messier 109 (also referred to as NGC 3992) is a SBbc bar spiral galaxy and the apparent brightness of 9.8 mag in the constellation Big Bear. In 1783, Charles Messier cataloged it as a 109th object.
| Object: | M 109 |
| Date of exposures: | 21.05.2017, 25.05.2017, 28.05.2017 |
| Distance: | 60 Mio. Lightyears |
| Exposures: | Lum: 26 x 600 Sec., RGB: 41 x 360 Sec., Sum: 8,4 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 |
M 109 is the brightest galaxy in the M 109 group, a large cluster containing over 50 galaxies. In March 1956 the Supernova 1956A was discovered as the only one in this galaxy.
M 109 has an estimated diameter of 120,000 light years and has at least the three satellite galaxies UGC 6923, UGC 6940 and UGC 6969. The HI areas of M109 are evenly distributed over the disk, with only a small extent, exactly in the region of the beam is a hole in the gas distribution of the HI regions.
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