Intermediate-band photometry in the open cluster NGC 6664

Details Intermediate-band photometry in the open cluster NGC 6664 Intermediate-band photometry in the open cluster NGC 6664

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1197s&link_type=abstract

Astronomical Journal, vol. 87, Aug. 1982, p. 1197-1201. Research supported by the Research Corp.

Astronomy and Astrophysics

Astronomy

16

Distance, Open Clusters, Stellar Magnitude, Stellar Spectrophotometry, Galactic Structure, H Beta Line, Interstellar Extinction, Stellar Color, Stellar Luminosity, Ubv Spectra

Scientific paper

Four-color and H-beta photometry is given for early-type stars in the open cluster NGC 6664. From these data, the true distance modulus is found to be 10.7 and the reddening is found to range from E/b y) = 0.48 to 0.63 across the cluster. The distance modulus agrees well with some values from the literature, but the present color excesses are about 0.1 mag larger than published values. There are two or perhaps three blue stragglers in the cluster, and its age is estimated to be 46 million years.

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