M52 open cluster was discovered catalogued by Charles Messier in 1774, from there stands the “M” letter. It’s located in constellation Cassiopeia and it’s visible even by small binocular.

m52-opencluster-2016-09-28-30c-12l-180s-8rgb-120sb2x2-fl1000

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:1000 mm
Mount:Gemini GF53f
Autoguiding:ZWO 174MM, TS 60/240 mm
Camera:Moravian instruments G2 8300M @-30C
Corrector:GPU
Filters:Baader LRGB
Exposure:12xL 180 s bin 1x1, 8RGB, 120s, bin 2x2
Date:2016-09-28