The main sequence of NGC 6231

Details The main sequence of NGC 6231 The main sequence of NGC 6231

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84.1020g&link_type=abstract

Astronomical Journal, vol. 84, July 1979, p. 1020-1024. Research supported by the National Research Council of Canada

Astronomy and Astrophysics

Astronomy

32

Electrophotometry, Main Sequence Stars, Star Clusters, Stellar Spectrophotometry, Ubv Spectra, Astronomical Spectroscopy, B Stars, Hertzsprung-Russell Diagram

Scientific paper

New MK spectral classifications (30 stars) and UBV photoelectric photometry (27 stars) are presented for stars in the central region of the rich young cluster NGC 6231, which is the nucleus of the association I Sco. A distance modulus of 11.6 is derived by comparison with the main sequences of II Sco, the Alpha Persei cluster, and the Hyades, assuming a distance modulus of 3.3 for the Hyades.

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