DDO photometry on red giants in the open clusters NGC 2232, NGC 2287, and NGC 2451

Details DDO photometry on red giants in the open clusters NGC 2232, NGC 2287, and NGC 2451 DDO photometry on red giants in the open clusters NGC 2232, NGC 2287, and NGC 2451

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1769p&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Dec. 1983, p. 1769-1774. Research supported by the Coordencao do Aperfeicoamento

Astronomy and Astrophysics

Astronomy

18

Metallicity, Open Clusters, Red Giant Stars, Stellar Color, Stellar Spectrophotometry, Ubv Spectra, Astrometry, Cyanogen, Iron, Stellar Evolution, Stellar Gravitation, Stellar Magnitude, Stellar Temperature

Scientific paper

From DDO photometry combined with U,B,V photometry of red stars in the open clusters NGC 2232, NGC 2287, and NGC 2451, the mean color excess E(B-V), the distance modulus, and the mean metal abundance [Fe/H] were derived for the clusters. The physical parameters, surface gravity, effective temperature, and spectral type were also obtained for the red stars. Estimation of age yielded 1.1×108yr for NGC 2287, and for NGC 2451, 4.8×108yr. The cluster NGC 2232 should be older than 109yr.

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