Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pasp...92..266f&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 92, June 1980, p. 266-274. Research supported by the Consejo Nacional de
Astronomy and Astrophysics
Astronomy
21
B Stars, Infrared Astronomy, O Stars, Open Clusters, Stellar Spectrophotometry, Ubv Spectra, Electrophotometry, Interstellar Extinction, M Stars, Main Sequence Stars, Polarized Radiation, Radial Velocity, Stellar Evolution, Stellar Luminosity, Supergiant Stars, Tables (Data), Variable Stars
Scientific paper
Photoelectric measures in UBVRI of 46 stars in and around the open cluster NGC 3293 are presented. A distance modulus of V(0) - M(v) equals 12.1 plus or minus 0.15 (s.d.), corresponding to 2.6 kpc, was derived from the photometric data for 34 member stars. This is similar to distances found for other young groups in the Carina region. One M supergiant and one Be star are members of the cluster. The brightest stars on the main sequence are of type B1. Several stars that have evolved away from the upper main sequence have been classified as giants and supergiants. The age of the cluster is about 7-million years. The star HD 91824 (no. 1), spectral type O7 V((f)), is not a member of the group. The insterstellar reddening is normal in front of this cluster.
Feinstein Alexander
Marraco Hugo G.
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