NSV 11321 Lyr: variability and light elements.

Details NSV 11321 Lyr: variability and light elements. NSV 11321 Lyr: variability and light elements.

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999geoce..25.....b&link_type=abstract

GEOS Circular on Eclipsing Binaries, No. EB 25, 8 p. (1999)

Computer Science

W Uma Stars:Light Curves, Eclipsing Binaries:Periods, Ephemerides

Scientific paper

Visual and photoelectric observations were carried out on NSV 11321, a short period suspected variable in the constellation of the Lyra discovered by C. Hoffmeister in 1965. The 2478 visual estimates obtained suggested a period of 0d.5776 and allowed to determine a first ephemeris. Subsequent photoelectric measurements carried out using the T76 on the Jungfraujoch coupled to the photometer of Geneva allowed to construct a precise BV light curve and to determine the variability type. NSV 11321 Lyr is an eclipsing binary, EW type, varying in the range 10.96-11.47 V. The photoelectric ephemeris is 2450700.3444 + 0.577639 *E. In the present paper both visual and photoelectric studies are separately discussed. A data file is available with photoelectric measurements under http://www.upv.es/geos/nsvcomp.txt

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