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Messier 100 in Coma Berenices

Astrophotography from Ursa Major Observatory @ ROSA

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deeplook.at
galaxy (spiral)
10.1’ x 5.6’
+9.35 mag (V)
Coma Berenices
55 +/- 6 Mio light years
2014-03-25+28+29+30 + 2014-04-17
Gahberg observatory, Upper Austria
- Luminance: Lacerta 10” f/4 Newtonian + Sbig ST2000XM - RGB: 5” f/5 Newtionian + SXV-H9 + Baader RGB - RGB and Luminance capured simultaeosly -
ASA DDM 60pro
Luminance 47 x10 min, RGB 18x10 min each
16.8h
note the very faint LSB-galaxy [TH2002] 318; It was discovered by Trentham and Hodgkin in 2002; Its magnitude is about +21.27 mag (blue) and about -12.02 mag absolute (which means if it was in a distance of 10 pc); For comaprison - M 100 has a magnitude of +10.5 (blue) and -22.4 mag absolute. This means, M 100 is about 10 000 times brighter than [TH2002] 318.
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