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Galaxy
Messier 106


Object : M106
Coordinates/Direction : RA: 12h18m, DEC: +47o18'
Object size : 18.6' x 7'
Object magnitude : 8.4
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/ Messier 106

M106 2020-01-04, 910 mm focal length

M106 galaxy 2020
Date : 2020-01-04
Time (UT) : 23:06 to 00:06
Mount : EQ6 controlled by EQMOD
Guide : PHD2 in dithering mode, QHY5 camera, 400 mm f/6.3 guide telescope
Lens/telescope : TS130, 910mm f/7
Corrector/Barlow : Field flattener 3" x1
Filter : none
camera : Canon 6D
Film/CCD : Raw
Exp. time : 60x60 seconds, iso1600
Image process tool : AstroImageJ, Fitswork, Irfanview
Processing :  level, cal flat, dithering no bias dark noise filter
Weather : clear with some clouds drifting by
Site : Sweden, Stockholm, Hagsätra
Comment : After I took this photo I found that I have done that long time ago with older equipment. You can compare them here.

M106 202020-01-04, crop

M106 galaxy 2020 crop (Place the cursor over the image to get info)
Date : 2020-01-04
Comment : After a crop of the image and magnifying it you see a lot of other galaxies.

M106 2018-01-07, 910 mm focal length

M106 galaxy 2018
Date : 2018-01-07
Time (UT) : 21:47 to 00:40
Mount : EQ6 controlled by EQMOD
Guide : PHD2 in dithering mode, QHY5 camera, 400 mm f/6.3 guide telescope
Lens/telescope : TS130, 910mm f/7
Corrector/Barlow : Field flattener 3" x1
Filter : none
camera : Canon 5D
Film/CCD : Raw
Exp. time : 110x60 seconds, iso800
Image process tool : AstroImageJ, Fitswork, Irfanview
Processing :  level, cal flat, dithering no bias dark noise filter
Weather : clear sky
Site : Sweden, Stockholm, Hagsätra
Comment : This photo is taken with my earlier Canon 5D camera, a bit noisier but otherwise not too bad. But one problem and that is a lot of dust and dirt on the sensor. I still have very big problem with this to keep it clean.

M106 2014-03-09, 500 mm focal length

M106 galaxy 2014
Date : 2014-03-09
Time (UT) : 21:47 to 00:40
Mount : EQ6 controlled by EQMOD
Guide : no guiding
Lens/telescope : Pentax 500 mm f/4.5 (4.5)
Corrector/Barlow : Builtin in the lens
Filter : none
camera : Canon 5D
Film/CCD : Raw
Exp. time : 20x30 seconds, iso1600
Image process tool : AstroImageJ, Fitswork, Irfanview
Processing :  level, cal flat, dithering no bias dark noise filter
Weather : clear sky
Site : Sweden, Stockholm, Hagsätra
Comment : This is the oldest photo I have on the M106 galaxy. It was taken with a big camera lens, a Pentax 500 mm f/4.5. Compare this lens with the new TS APO triple lens with field flattener. The new one has much better color handling and almost no vignetting which was heavy on this Pentax lens.
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