M40

A potential mistake in Messier’s catalogue, just 2 stars in Ursa Major.
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M40

Winnecke 4

Date:
March 2015
Location:
Łomianki near Warsaw
CCD:
Apogee U8300M
Scope:
TEC140 APO @F7
Mount:
AP1200GTO
Exposure
RGB – 100:100:145
Processing:
MaximDL, PixInsight, Photoshop CS6