Messier 52 or M52, also known as NGC 7654 or the Scorpion Cluster, is an open cluster of stars in the highly northern constellation of Cassiopeia. It was discovered by Charles Messier in 1774. It can be seen from Earth under a good night sky with binoculars. The brightness of the cluster is influenced by extinction, which is stronger in the southern half. Its metallicity is somewhat below that of the Sun, and is estimated to be [Fe/H] = −0.05 ± 0.01.
Object Designations: M52, Messier 52, NGC7654
Also known as: Scorpion Cluster
Constellation: Cassiopeia
Object Type: star cluster
Distance: 46,000 light-years away
Magnitude: 7.3
Discovery: Charles Messier
Telescope: Celestron 9.25 SCT with Starzone .63 corrector – 1500 mm / f7
Camera: ZWO ASI2600 MC Pro – Antila RGB Ultra filter
Mount: Celestron CGEMII – With CPWI Software
Guiding: Celestron StarSense Autoguider
SharpCap Imaging Software
Processing Software
AstroSharp Ltd SharpCap
Pleiades Astrophoto PixInsight
GraXpert
Russell Croman Astrophotography BlurXTerminator
Russell Croman Astrophotography NoiseXTerminator
Russell Croman Astrophotography StarXTerminator
Various scripts
This final image is:
10 – 180 second subs at 100 gain, Antila RGB Ultra filter
White Bal (B) = 67
White Bal (R )= 76
Brightness = 24
Camera Temperature = -10
LastPlateSolveData=Plate solve result was RA=23:25:38.0,Dec=+61:42:59 with mount at RA=23:25:35.0,Dec=+61:42:33, FOV 0.903×0.603 degrees, up is 274.23 degrees East of North