BVRI main-sequence photometry of the globular cluster M4

• 1 September 1984
• journal article
• Published by American Astronomical Society in The Astrophysical Journal Supplement Series
• Vol. 56, 19-65
• https://doi.org/10.1086/190975

Abstract

Keywords

• MAIN SEQUENCE
• GLOBULAR CLUSTER
• STELLAR EVOLUTION
• HERTZSPRUNG RUSSELL