Composition and Evolution Patterns in the Old Open Cluster Melotte 66: Photoelectric (U) BV(RI) Photometry of 71 Stars

New photoelectric (U) BV(RI) data for 71 red giants and turnoff stars in the old open cluster Melotte 66 are presented and discussed. The photometry confirms the broad color range exhibited by giants at and above the level of the clump. UBV analysis of turnoff stars yields [Fe/H]= — 0.53 ± 0.08 assu...

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Veröffentlicht in:	Publications of the Astronomical Society of the Pacific 1995-12, Vol.107 (718), p.1215-1225
Hauptverfasser:	Twarog, Bruce A., Anthony-Twarog, Barbara J., Hawarden, Timothy G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomical magnitude Astronomical photometry Giant branches Giant stars Main sequence stars Metal abundance Open star clusters Standard error Stars Subgiant stars
Online-Zugang:	Volltext
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