Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.2124h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 98, Dec. 1989, p. 2124-2145. Research supported by NSERC.
Astronomy and Astrophysics
Astronomy
35
Astronomical Photometry, Blue Stars, Charge Coupled Devices, Globular Clusters, Abundance, Color-Magnitude Diagram, Interstellar Extinction, Metallicity, Stellar Luminosity, Stellar Mass
Scientific paper
CCD data is used to produce a color-magnitude diagram of the cluster NGC 6254 (M10). The distance modulus, reddening, and metallicity for M10 are derived. The distance modulus is 0.2 m larger than previous estimates. It is estimated that the age of M10 is 17 + or - 1 Gyr. The M10 color-magnitude diagram is compared to Bolte's (1989) diagram for NGC 288, showing that these two clusters are coeval.
Fahlman Gregory G.
Hurley Daniel J. C.
Richer Harvey B.
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