The spectroscopic binary HD 23642 and the distance of the Pleiades.

Details The spectroscopic binary HD 23642 and the distance of the Pleiades. The spectroscopic binary HD 23642 and the distance of the Pleiades.

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...293..360g&link_type=abstract

Astronomy and Astrophysics 293, 360-362 (1995)

Astronomy and Astrophysics

Astrophysics

8

Open Clusters And Associations, Individual: Pleiades, Binaries: Close, Stars, Individual: Hd 23642, Stars: Distances

Scientific paper

HD 23642 is a double-lined spectroscopic binary in the Pleiades for which orbital elements and photometric data of good quality are available. Putting, by trial and error, the individual components on the cluster isochrone so that the colour index of the couple is the same as the observed one, the comparison between the absolute and the apparent magnitude furnishes the distance modulus. If the age t=1.5x10^8^yr is assumed one has V_0_-M_V_=5.61+/-0.26; for t=3.0x10^8^yr one obtains V_0_-M_V_=5.80+/-0.24.

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