Messier 106

Messier 106 (also known as NGC 4258) is a transiting spiral galaxy in the constellation of the Hunting Dogs. It was discovered by Pierre Méchain in 1781. M106 is about 22 to 25 million light years away from Earth. M106 contains an active core classified as a Seyfert type 2, and the presence of a central supermassive black hole has been demonstrated from radio wave observations of the rotation of a disk of molecular gas orbiting in an inner light-year diameter region around the black hole.

NGC 4217 is a possible companion galaxy to Messier 106.

Equipment: SkyWatcher NEQ6Pro, GSO Newton astrograph 200/800, GSO 2" coma corrector, QHY 8L-C, SVbony UV/IR cut, Optolong L-eNhance filter, FocusDream focuser, guiding QHY5L-II-C, SVbony guidescope 240mm.

Software: NINA, Astro pixel processor, GraXpert, Siril, Pixinsight, Adobe photoshop

169x180 sec. Lights gain15, offset113 at -10°C, 94x360 sec. Lights gain15, offset113 at -10°C via Optolong L-eNhance, master bias, 180 flats, master darks, master darkflats

20.4. until 30.4.2024

Reworked version

Belá nad Cirochou, Slovakia, bortle 4

Done