NGC 2112 - A forgotten old open cluster

Details NGC 2112 - A forgotten old open cluster NGC 2112 - A forgotten old open cluster

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26as...59..491r&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 59, March 1985, p. 491-495. Sponsorship: Deutsche Forschungs

Astronomy and Astrophysics

Astrophysics

11

Hertzsprung-Russell Diagram, Open Clusters, Stellar Color, Stellar Evolution, Stellar Magnitude, Stellar Spectrophotometry, Distance, Interstellar Extinction, Metallicity, Orion Nebula, Subgiant Stars

Scientific paper

A first color-magnitude diagram of the open cluster NGC 2112 is presented. Although the photometry does not reach the main sequence and thus no firm conclusion concerning the age is possible, it turns out that the cluster has to be placed among the oldest open clusters known. Preliminary values for distance and reddening are 800 pc and 0m.5, respectively. Strömgren data of a few stars indicate a metallicity about -1 dex.

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