Updated: Oct 28, 2019

There are three open clusters in the constellation of Auriga, M37 being one of them. It is the largest, brightest, and most populated of the three.

Photographing this object is simple and obtaining great results does not require many hours of exposure. Our photo below was captured in one hour with 3-minute exposures at ISO 800. While mildly exciting, it is still a beautiful cluster of stars to capture.


Camera: Canon 7D Mark II

Telescope: Orion 8" Astrograph f/3.9

Mount: Atlas EQ-G motorized Mount

Coma: Baader MPCC Coma Corrector MkIII

Guiding: Starshoot Autoguider - 50mm Guide Scope

Processing: Pixinsight


Total Exposure Time: 45 minutes

Exposure Time per frame: 3 minutes

15 lights - 15 Darks - 15 Bias

ISO: 800


M37 lies in the constellation of Auriga, in between Gemini and Perseus.

To find it, first locate the sixth brightest star in the night sky: Capella. The cluster is on the opposite side of that star towards Gemini, just to the exterior of Auriga’s pentagon asterism. Unlike M37, both M36 and M38 are inside the pentagon shape.

Messier 37 can not be resolved with the naked eye, but its brightest stars can easily be seen through binoculars. A small telescope will be able to show you about 20 bright stars, while bigger instruments will reveal hundreds of stars, including the fainter members.

  • Discovered before 1654

  • Contains about 500 stars, at least 12 of them evolved from red giants

  • Very close to M36 and M38


This open cluster in Auriga is not the most impressive one out there, but it makes for a beautiful image anyway, and one more Messier Object to cross of your list! It is also pretty easy to image and process in general.

Clear Skies,

Galactic Hunter

Part of: The Astrophotographer's Guidebook

Description: Discover 60 Deep Sky Objects that will considerably improve your Imaging and Processing skills! Whether you are a beginner, intermediate, or advanced astrophotographer, this detailed book of the best deep sky objects will serve as a personal guide for years to come! Discover which star clusters, nebulae, and galaxies are the easiest and most impressive to photograph for each season. Learn how to find each object in the night sky, and read our recommendations on imaging them in a quick and comprehensive way. Each target in this guide contains our advice on imaging, photos of expected results, and a useful information table. We've also included a few cool facts about each target, a map to find it in the night sky, and more!

#astronomy #astrophotography #messiercatalog #messier #galaxy #nebula #cluster #stars #space #galactichunter #nevada #lasvegas #canon #orion #telescope #messier37 #M37 #Auriga

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