Open Cluster Messier 29

Messier 29
Messier 29: Section of the STScI Digitized Sky Survey [147]

Object Description

This small and rather inconspicuous open star cluster was discovered by Charles Messier in July 1764. It is located in an area of the Milky Way with high levels of dust, which causes a darkening of around 3 magnitudes. W. A. Hiltner found out in 1954 that the density of the dust within the cluster was about a factor of 1000 above the galactic mean. The brightest members are all B-type stars. The stellar population resembles the much closer cluster M 36 in Auriga. [4]

The removal of M 29 is described in the «Catalogue of Open Cluster Data (COCD)», Kharchenko et al. 2005 [257] with 1148 pc (3744 ly) and the age with logt = 7.12 (107.12 ≈ 13 million years). Similar values are found in WEBDA [138].

«Revised New General Catalogue and Index Catalogue» Dr. Wolfgang Steinicke, 2021 [277]
DesignationNGC 6913
TypeOCL (III3p)
Right Ascension20h 24m 06.0s
Declination+38° 29' 36"
Diameter10.00 arcmin
Visual magnitude6.6 mag
Dreyer DescriptionCl, P, lC, st L and S
IdentificationM 29, OCL 168

Finder Chart

The open cluster M 29 is located in the constellation Cygnus. The best observing time is March to December.

Chart Messier 29
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
138WEBDA, Sternwarte Genf;
147Aladin Lite; (2020-12-23)
149SkySafari 6 Pro, Simulation Curriculum;
160The STScI Digitized Sky Survey;
257«Astrophysical parameters of Galactic open clusters» N. V. Kharchenko, A. E. Piskunov, S. Röser, E. Schilbach and R.-D. Scholz; A&A Volume 438, Number 3, August II 2005; DOI:10.1051/0004-6361:20042523
277«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; (2021-02-17)