Photometry of Praesepe in BVRI colors

Photometry of Praesepe in BVRI colors

Results are reported for BVRI photoelectric photometry of 55 stars in the region of the Praesepe cluster. Distance moduli are derived independently from V, B-V and V, R-I diagrams. These diagrams indicate that five of the stars do not appear to be cluster members and that 13 others are possibly bina...

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Veröffentlicht in:Astron. J.; (United States) 1979-10, Vol.84, p.1586-1590
Hauptverfasser: Upgren, A. R., Weis, E. W., Deluca, E. E.
Format: Artikel
Sprache:eng
Schlagworte:
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
BINARY STARS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
MAIN SEQUENCE STARS
MOTION
PHOTOMETRY
PROPER MOTION
STAR CLUSTERS
STARS
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Beschreibung
Zusammenfassung:Results are reported for BVRI photoelectric photometry of 55 stars in the region of the Praesepe cluster. Distance moduli are derived independently from V, B-V and V, R-I diagrams. These diagrams indicate that five of the stars do not appear to be cluster members and that 13 others are possibly binary members of Praesepe. The remaining stars are found to define a sequence similar in slope to that of the Hyades and lying 3.0 mag below it. Best values of 6.20 + or - 0.05 mag for the modulus and 174 + or - 4 pc for the distance of Praesepe are adopted.
ISSN:0004-6256
DOI:10.1086/112580