M37 is one of the three Messier Open Clusters in the Constellation of Auriga – the other two being M36 and M38. It is about 4500 light years away and contains several red giant stars, visible in this image, making it the richest of the three Auriga Messier Open Clusters. M37 appears high overhead from my 53 degree norther location during the winter months making it an ideal target for visual observations and imaging. It makes a fine site in a telescope and appears as a fuzzy ball in a pair of binoculars.
Image Technical Data
Imaged from my backyard in Nottingham, UK on the 9th February 2018. I used my Takahashi FSQ85 refractor and Moravian G2-8300 cooled CCD camera with Astrodon RGB filters. All expsoures are binned 1×1.
Red > 12 x 120s ; Green > 12 x 120s ; Blue > 12 x 120s