Spiral galaxy in the constellation triangle.
Messier 33 (M33), triangular nebula, or triangular galaxy is a spiral galaxy with a diameter of approx. 60.000 Lj. and the total brightness of 5.7 mag in the constellation triangle.
|Date of exposures:||08.11.2020, 24.09.2016, 23.09.2016|
|Distance:||2,8 Mio. Lightyears|
|Exposures:||Lum: 18 x 480 Sec., 71 x 180 Sec., RGB 48 x 300 Sec., 74 x 180 Sec., Sum: 13,6 hrs.|
|Telescope:||10'', F4 Newton|
|Focal length:||1000 mm|
|Filter:||Astrodon E-Series, LRGB|
|Camera:||ASI 1600 MMC Pro|
|Guiding:||Off Axis Guider, Lodestar|
This makes it the second brightest spiral galaxy in the nightsky after the Andromedanel and one of the closest to us. However, its brightness is distributed over a larger area, so that under normal conditions it is not visible to the naked eye, but only in the field as a weak foggy spot.
Older image from 2016 with Atik 460 Exm: