Messier 37 (also known as M37, NGC 2099, or the Salt and Pepper Cluster) is the brightest and richest open cluster in the constellation Auriga
I processed the images using Pixinsight,
Object Designation: Messier 37, NGC 2099
Also known as: Salt and Pepper Cluster
Constellation: Auriga constellation
Object Type: Open Star Cluster
Distance: 4.5 million light-years away
Magnitude: 6.2
Discovery: Giovanni Batista Hodierna 1654
This final image is:
28 – 15 second subs at 100 gain – no filter
