NGC 2447 and the reddening and luminosity of normal red giants

Astronomy and Astrophysics – Astronomy

Scientific paper

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Early Stars, Interstellar Extinction, Red Giant Stars, Star Clusters, Stellar Luminosity, Stellar Spectrophotometry, A Stars, Astronomical Catalogs, F Stars, H Beta Line, O Stars, Stellar Evolution, Stellar Spectra

Scientific paper

Intermediate-band, RI, and H-beta observations of the cluster NGC 2447 in Puppis, which contains nine or ten red giants and bright giants, are presented. Results are presented for 36 cluster stars. Photometric parameters are also presented for A and F type stars in the cluster, highly evolved A and F type stars, bright giants, normal red giants, red giants of Hyades abundances, and O type stars. The reddening and luminosities of the normal cluster giants are exhibited, and the relation between R-I and b-y for O type stars is shown. The luminosity and reddening calibrations for A/F stars and red normal giants and bright giants give concordant results.

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