M 106 (also known as NGC 4258) is a spiral galaxy visible in the constellation of Canes Venatici and about 25 million light years away.
M106 is an example of Seyfert's galaxy; the detection of unusual radio wave and X-ray emissions indicates that probably part of the galaxy is falling into a supermassive black hole located in its center.
The shape of M106 resembles that of the Andromeda Galaxy (M31), but with a different inclination, so that all the structures of dust clouds on the galactic plane are thus visible.
Optic Celestron C9.25 Edge HD f/10
Mount Losmandy G11 with Ovision worm and FS2
Camera Atik 4000 with Starlight Xpress filter wheel 5 positions
Filters Hutech Idas LPS-P2 50.8 unmounted for L, Baader 50.8 unmounted for RGB
Guiding system OAG LB Astro Proxima with Lodestar
Exposure details L 26x600" bin1 -20C
R 9x420" bin2 -20C
G 9x420" bin2 -20C
B 9x420" bin2 -20C
Total integration 7.5h
Acquisition Maxim, PHD2
Processing Pixinsight 1.8, Photoshop CS5
SQM-L 18.5 for L, 21.33 for RGB
Location Home terrace (Rescaldina, Italy) for L, Cegni (Italy) for RGB
Date 11 April 2015 for L, 23 January 2015 for RGB