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1971AJ.....76..331R - Astron. J., 76, 331-334 (1971)
The C-M diagram of M 12.
RACINE R.
Journal keyword(s):
Nomenclature: Table I: Cl* NGC 6218 RAC A N=14 among (Nos a-p), Cl* NGC 6218 RAC AN (Nos C1, F1-F3). Not published: NGC 6218 NNNN N>1000, always a 4 digits format.
CDS comments: Standard stars have a format 'a' and 'aN' in the paper.
Simbad objects: 28
