NSV 4219 UMa: an RR Lyr variable of the RRab type.

Details NSV 4219 UMa: an RR Lyr variable of the RRab type. NSV 4219 UMa: an RR Lyr variable of the RRab type.

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995geocr..13.....v&link_type=abstract

GEOS Circular on RR Lyr Type Variables, No. RR 13, 5 p. (1995)

Physics

Rr Lyrae Stars:Periods, Photometry

Scientific paper

NSV 4219 UMa is catalogued as a rapid variable, with photographic magnitudes ranging from 11.1 to 11.9, in the New Catalogue of Suspected Variable Stars (1982), after a paper by Geyer et al. (1955). Visual estimates and photoelectric measurements show that it is an RR Lyr star of the RRab type, with the following elements: JD hel 49,012.9896 + 0.5428316*E. Its magnitude varies from 10.89 to 11.38 in V, with a B-V color index from 0.39 to 0.61 in the Johnson and Morgan system. M-m = 0.24 period.

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