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Messier 31, Andromeda Galaxy


M31, Wide angle version

M31 wide angle 150 mm (click on the image to get a full resolution photo in a new window)
Coordinates/Direction : RA: 00h43m, DEC: +41o21'
Object size : 189' x 61'
Object magnitude : 3.44
Object : M31
Date : 2017-08-19
Time (UT) : 21:55 to 22:58
Mount : EQ6 Pro
Guide : -
Lens/telescope : Sigma APO 150mm f2.8 (set to f4.0)
Corrector/Barlow : -
Filter : none
camera : Canon 6D, controlled by APT
Film/CCD : Raw
Exp. time : 30x120 seconds, iso800
Image process tool : AstroImageJ, Fitswork
Processing : demosaic, flat calibrated, dark level adjust, median stack (to get rid of static pattern), crop, level
Weather : clear
Site : Sweden, Stockholm
Comment : M31 Andromeda Galaxy.
Same object as before, but now taken with the camera mounted on the big EQ6 mount, much more stable. Can you se any difference?

M31, Wide angle version

M31 wide angle 150 mm (click on the image to get a full resolution photo in a new window)
Coordinates/Direction : RA: 00h43m, DEC: +41o21'
Object size : 189' x 61'
Object magnitude : 3.44
Object : M31
Date : 2016-09-10
Time (UT) : 20:19 to 23:45
Mount : Star Adventurer
Guide : -
Lens/telescope : Sigma APO 150mm f2.8 (set to f4.0)
Corrector/Barlow : -
Filter : none
camera : Canon 6D, controlled by intervalometer
Film/CCD : Raw
Exp. time : 89x120 seconds, iso400
Image process tool : AstroImageJ, Fitswork
Processing : demosaic, flat calibrated, dark level adjust, median stack (to get rid of static pattern), crop, level
Weather : clear
Site : Sweden, Stockholm
Comment : M31 Andromeda Galaxy.
The photo was taken with my Sigma APO 150 mm lens set to f4. I'm very satisfied with my Star Adventurer mount. Later when I have collect more experience I hope to increase the exposure time.

M31, Crop version

M31 wide angle 150 mm crop version
Object : M31
Date : 2016-09-10
Lens/telescope : Sigma APO 150mm f2.8 (set to f4.0)
camera : Canon 6D, controlled by intervalometer
Comment : M31 Andromeda Galaxy.
Here is a crop version of above photo. Even if it's taken with a short 150 mm lens you can still se details in the Galaxy.

M31, Refractor APO version

Andromeda M31 galaxy 2015
Coordinates/Direction : RA: 00h43m, DEC: +41o21'
Object size : 189' x 61'
Object magnitude : 3.44
Object : M31 Andromeda galaxy
Date : 2015-08-22
Time (UT) : -
Mount : EQ6 controlled by EQMOD
Lens/telescope : TS130, 910mm f7 (682mm, f5.3)
Corrector/Barlow : Riccardi flat field corrector 2.5" x0.75
Filter : none
camera : Canon 5D
Film/CCD : Raw
Exp. time : 19x30, 30x120, 16x240 seconds iso800
Image process tool : DSS, Fitswork, Irfanview
Processing : resize, level, cal dark&bias
Weather : clear
Site : Sweden, Stockholm
Comment : One of my first test with the modified adapters to reduce vignetting problems. Works fine relative earlier. But as seen, the 30 seconds exposures doesn't fit very well at the high levels as in galaxy center.

My first M31 photo

Object : M31 Andromeda Galaxy
Date : 2006-11-26
Time (UT) : 18:57 to 19:36
Mount : EQ4 with motor
Lens/telescope : Makinon 135mm f2.8
Corrector/Barlow : none
Filter : none
camera : Canon 350d
Film/CCD : iso800
Exp. time : of 38x60 seconds only 6 was used because of cloudes
Weather : clouds come and go
Site : Sweden Midsommarkransen 4:th floor
Comment : This was my first attempt to shot M31. Our neighbor galaxy, maybe it will collide with us in the future. It's fantastic that it's possibly to take a deep sky image from city where I live, without any filter!
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/Andromeda_Galaxy

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