M 31

Posted by on Dec 10, 2016

M 31

The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 2.5 million light-years from Earth. It is the nearest major galaxy to the Milky Way and was often referred to as the Great Andromeda Nebula in older texts. It received its name from the area of the sky in which it appears, the constellation of Andromeda, which was named after the mythological princess Andromeda.

Note: This image was made with limited amount of raw data only 20 min/channel but still good result.

Raw images:
Luminance: 5 x 3min (Total: 20min) Bin:1
Red: 5 x 3min (Total: 20min) Bin:2x2
Green: 5 x 3min (Total: 20min) Bin:2x2
Blue: 5 x 3min (Total: 20min) Bin:2x2
Ha: 1 x 10min (Total: 10min) Bin:1
Seeing: 2-3"

Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Moravian G3-16200 camera @-25C
No guiding

Astrodon L,R,G,B and Ha 5nm

Valla Observatory (FROSON, Sweden)
October 7, 2016

Image processing:
Images calibrated and processed in AstroPix
Some color mixing in Photoshop

Image palette:
Normal LRGB with Ha channel mixed with R channel

 Image information:
Scale: 1.14 arcsec/pix
FOW: 86x70 arcmin

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