The globular cluster NGC 6366 - Its blue stragglers and variable stars

Details The globular cluster NGC 6366 - Its blue stragglers and variable stars The globular cluster NGC 6366 - Its blue stragglers and variable stars

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106..604h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 106, no. 2, p. 604-612.

Astronomy and Astrophysics

Astronomy

25

Blue Stars, Color-Magnitude Diagram, Globular Clusters, Metallicity, Variable Stars, Astronomical Photography, Charge Coupled Devices, Radial Distribution

Scientific paper

The nearby, metal-rich, halo globular cluster NGC 6366 has been observed in order to obtain its color-magnitude diagram and to search for variable stars. The color-magnitude diagram indicates that the cluster has a reddening E(B - V) of 0.80 (higher than most previous determinations) and a distance of 3.0 kpc. The cluster has numerous blue straggler stars, and a list of 27 candidate blue stragglers is given. However, no blue stragglers are found to be variable, and the implications of this finding are discussed. The one RR Lyrae star in the cluster is studied, and its period and light curve are determined. The structural parameters of the cluster are determined.

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