Collinder 223 - A moderately young open cluster in the Carina spiral feature

Details Collinder 223 - A moderately young open cluster in the Carina spiral feature Collinder 223 - A moderately young open cluster in the Carina spiral feature

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..998c&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, Sept. 1991, p. 998-1004. Research supported by CON

Astronomy and Astrophysics

Astronomy

3

Early Stars, Open Clusters, Stellar Evolution, Stellar Spectrophotometry, Electrophotometry, Interstellar Extinction, Metallicity, Red Giant Stars, Ubv Spectra, Variable Stars

Scientific paper

UBV photoelectric data for 110 stars and DDO data for seven stars are discussed originating in the field of the previously unstudied open cluster Collinder 223. These data show that Cr 223 is a genuine open cluster located at a distance of (2900 + or - 270) pc from the sun and 96 pc below the galactic plane. Nearly 40 percent of the sample stars - including one red giant, two blue stragglers, and two suspected variables - are found to be cluster members. The reddening across the cluster is not uniform, the mean value being E(B-V) = 0.26 + or - 0.03 (s.d.). An age of 3.6 x 10 to the 7th yr has been derived, which places Cr 223 within the IC 4665 age group.

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