Messier (Others)

Though real Messier objects, these are actually no deep sky objects at all:
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• M24: Milky Way Patch (star cloud, `Delle Caustiche’); containing open cluster NGC 6603
• M40: Double Star, Winnecke 4 (WNC 4)
• M73: System or Asterism of 4 Stars

 

 

 

 

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