Messier 37 - The Salt and Pepper Cluster

Messier 37 - The Salt and Pepper Cluster

Messier 37, also known as NGC 2099, or the Salt and Pepper Cluster is the brightest and richest open cluster in the constellation Auriga. It was discovered by the Italian astronomer Giovanni Battista Hodierna before 1654. Messier 37 was missed by French astronomer Guillaume Le Gentil when he rediscovered Messier 36 and Messier 38 in 1749. French astronomer Charles Messier independently rediscovered Messier 37 in September 1764 but all three of these clusters were recorded by Hodierna.

Messier 37 contains over 500 stars and a diameter of about 20–25 light-years. It is at an estimated distance of around 4,500 light-years from Earth.
Equipment:
OTA: Apertura 6" Ritchey-Chretien Reflector (f/9)
Reducer: Astro-Physics CCDT67 0.67x Reducer (f/6 overall)
Filter: SVBONY CLS City-Light-Suppression Filter
Camera: ZWO ASI183MC Pro Cooled Color Camera (20.1 mp)
Guide Scope: SVBONY SV106 50mm f/3.8
Guide Camera: ZWO ASI120MM Mini Guide Camera
40x30s subs (20 minutes) stacked in SharpCap 4.1 with dark & flats
Processed in GraXpert, Topaz Denoise AI, Astrosharp, and Siril