UVBY beta photometry of southern clusters. V - NGC 2422

Details UVBY beta photometry of southern clusters. V - NGC 2422 UVBY beta photometry of southern clusters. V - NGC 2422

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211..659s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Dec. 1, 1984, p. 659-666. Research supported by th

Astronomy and Astrophysics

Astronomy

37

Star Clusters, Stellar Spectrophotometry, Ubv Spectra, A Stars, B Stars, O Stars, Pleiades Cluster, Stellar Luminosity

Scientific paper

Strömgren four-colour and Hβ photometry has been obtained for 28 B and A0 members of the young cluster NGC 2422. A comparison of V0/c0 diagrams clearly shows that the cluster is very similar in age to the Pleiades. Distance estimates for the cluster from three luminosity calibrations of the β index and from a direct comparison of the V0/c0 diagram with that of the Pleiades are all in good agreement. If the distance modulus of the Pleiades is taken to be 5.50, the adopted modulus for NGC 2422 is 8.0, corresponding to a distance of 400 pc with an estimated uncertainty of 10 pc.

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