Discovery of the Variability of GSC 140.1831, GSC 959.1397 and GSC 396.1710

Details Discovery of the Variability of GSC 140.1831, GSC 959.1397 and GSC 396.1710 Discovery of the Variability of GSC 140.1831, GSC 959.1397 and GSC 396.1710

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ibvs.4797....1l&link_type=abstract

Information Bulletin on Variable Stars, 4797, 1.

Physics

5

Eclipsing Binary, Period, Rr Lyrae

Scientific paper

Photometric observations of GSC 140.1831 show it to be an eclipsing binary with a period of 1.14962+/-0.00005 days. The epoch of primary minimum is JD 2451264.27+/-0.02. The light curve shows two minima of about 0.7 and 0.5 magnitudes deep. The system probably contains two late A-type stars. GSC 959.1397 and GSC 396.1710 are both a-type RR Lyrae variables with a periods and amplitudes of 0.64465+/-0.00012 days and 1.0 mag, and 0.77892+/-0.00009 days and 0.7 mag respectively.

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