M103 open cluster in Cassiopeia
The brightest star HD 9311 (double star Struve 131) is not a member of the group
HAG 24" RC Moravian 64-9000
10 x 30sec,, LRGB
2016-08-26 @ 20:40 UT
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Use arrows for index/next/previous.
HAG 24" RC Moravian 64-9000
10 x 30sec,, LRGB
2016-08-26 @ 20:40 UT