Open Cluster Messier 36

Messier 36
Messier 36: Section of the STScI Digitized Sky Survey [147]


M 36 is the first of the three bright Messier star clusters in the constellation Auriga. The other two are M 37 and M 38. It was discovered in 1654 by Giovanni Hodierna and then again in 1749 by Guillaume Le Gentil and in 1764 by Chales Messier. [4, 196]

Physical Properties

The star cluster is of the Trumpler type II3m and contains about 60 stars from 9th to 14th magnitude. The center with the brightest stars measures about 10 arc minutes in diameter and contains the binary star Struve 737 (Σ 737, ADS 4194, distance 10.7 "). M 36 is one of the younger star clusters with bright B-type stars and no red giants ranging from 1200 Up to 1318 pieces. [4, 145]

«Revised New General Catalogue and Index Catalogue» Dr. Wolfgang Steinicke, 2021 [277]
DesignationNGC 1960
TypeOCL (II3m)
Right Ascension05h 36m 17.7s
Declination+34° 08' 27"
Diameter10.00 arcmin
Visual magnitude6.0 mag
Dreyer DescriptionCl, B, vL, vRi, lC, st 9…11 sc
IdentificationM 36, OCL 445

Finder Chart

The open star cluster is located within the pentagon in the constellation Auriga (Charioteer) and is visible to the naked eye on a dark night. The best observation time is September to April.

Chart Messier 36
Chart created using SkySafari 6 Pro and STScI Digitized Sky Survey. [149, 160]


4«Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System» by Robert Burnham; Dover Publications, Inc.; Voume I: ISBN 0-486-23567-X; Volume II: ISBN 0-486-23568-8; Volume III: ISBN 0-486-23673-0
145SIMBAD astronomical database;
147Aladin Lite; (2020-12-23)
149SkySafari 6 Pro, Simulation Curriculum;
160The STScI Digitized Sky Survey;
196Celestial Atlas by Curtney Seligman; (2020-12-28)
277«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; (2021-02-17)