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Messier 87

Object : M87
Coordinates/Direction : RA: 12h30m, DEC: +12o23'
Object size : 7.2' to 6.8'
Object magnitude : 8.6
More to know : Wikipedia: wiki/ Messier 87

M87 2020-03-20

Galaxy Messier 87, Sweden 2020 (Click on image and get one in full resolution in a new window)
Date : 2020-03-20
Time (UT) : 22:56 to 23:35
Mount : SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019)
Guide : ASI120 camera with 400 mm f/6.3 lens
Lens/telescope : TS130 APO f/7 910mm, 3" focuser
Corrector/Barlow : 3" field flatter, x1. T48 connector to camera
Field (FOV) : 2.25 x 1.5o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 6o C above surrounding temperature
Film/CCD : Raw, Cr2
Filter : none
Control system: Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux)
Exp. time : 30x60 seconds, iso1600, dithering mode
Image process tool : AstroImageJ, Fitswork, Irfanview
Processing : resize, level, cal dark&bias, synthetic flat calibrated
Weather : clear
Site : Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20o-90o, 165o-185o, La: 20o-55o
Comment : The galaxy M87 is small even in the big refractor with 910 mm focal length. This is a 800x800 1:1 pixel crop around the galaxy and some details show up. It's small even here, in reality it's a giant elliptical galaxy. In its surroundings there are a lot of other galaxies, plate solved version: M87 by
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