NGC 663 in Cassiopeia
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2012-08-13+20
Gahberg observatory, Upper Austria
5” f/5 Skywatcher Newtonian Atik 16HR + Baader LRGB-filters
WAM 650move
Luminance 24x3 min / RGB 5x5 min each
02h 27min
Open cluster
15’
+7.1mag
Cassiopeia
10 190 light years
Trumpler cassification II 3 r
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