Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26as...44..191a&link_type=abstract
Astronomy and Astrophysics Supplement Series, vol. 44, May 1981, p. 191-197.
Astronomy and Astrophysics
Astrophysics
28
Astronomical Photography, Globular Clusters, Star Distribution, Stellar Spectrophotometry, Ubv Spectra, Abundance, Color-Magnitude Diagram, Electrophotometers, Photographic Plates, Stellar Magnitude
Scientific paper
A color-magnitude diagram (CMD) for NGC 6626 was obtained from 311 stars measured photographically, calibrated from a photoelectric sequence of 23 stars to a limiting magnitude of V equals 16.47. In a dense stellar field at low galactic latitude, the CMD consists of a giant branch of medium steepness and a group of only blue horizontal branch stars. The deduced reddening of E(B-V) equals 0.40 places the object at 5.8 kpc from the sun, 0.6 kpc from the galactic plane, and 3.5 kpc from the galactic center. The inferred values of Delta V of about 2.6 and S of about 4.3 are consistent with a moderately metal-poor metal abundance as are also the spectral type F8, the integrated color Q equals -0.35, and Fe/H of about 1.3.
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