Open AccessThe Ages of the Open Cluster NGC 188 and the Globular Clusters M3, M5, and M13 Compared with the Hubble Time.
Author(s) -
Allan Sandage
Publication year - 1961
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/108497
Subject(s) - physics , globular cluster , astrophysics , astronomy , open cluster , horizontal branch , star cluster , redshift , red giant branch , distance modulus , galaxy cluster , galaxy , stars , cluster (spacecraft) , magnitude (astronomy) , computer science , programming language