M 31  -  Andromeda Galaxy

100%  resolution (3.3MB)

Object identification (3.3MB)

150%  resolution (4.3MB)

DSLR widefield image

Object data of M31

Object type: Galaxy (Sb)
Size: 189' x 62'
Magnitude: 3.4 mag
Constellation: And
Distance: 2.5 Mio Ly
Notes: The Andromeda Galaxy, also known as Messier 31, is a spiral galaxy in a distance of approximately 2.5 million light-years in the constellation Andromeda. It is the nearest major galaxy to the Milky Way.

The image above shows besides the central part of M 31 also two satellite galaxies: M 32 and M 110.

Exposure data

Date: 2016-12-21 + 2016-12-23 + 2016-12-29
Location: Steinbach am Ziehberg / Austria (920m)
Telescope: Takahashi FSQ-106ED (4" Apo f=530mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: WAM 650move
Exposure time: L 24x8min / R 8x8min / G 8x8min / B 8x8min
Exposure time total: 6h 24min