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0129Two New Eclipsing Variable Stars in Bootes
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Natalia A. Virnina2010-11-17
 We report the discovery of two new variable stars, USNO-B1.0 1238-0228470 and USNO-B1.0 1229-0276915, in Bootes using the remotely controlled astrophysical refractor AP-180 of the Tzec Maun Observatory (USA) in 87.5\' x 58.3\' field centered on 14h15m27.40s +33d31m32.5s. We have already preliminary registered these stars in VSX (Variable Stars Index, AAVSO) and these stars have got names VSX J141509.2+335222 and VSX J141340.5+325648, respectively. Both stars are eclipsing binary systems. USNO-B1.0 1238-0228470 has been classified as EB or EA. It is rather bright – it shows low-amplitude variations in a range of 12.833 – 13.080 (R), the period is short relatively to the classic EB-type stars: P=0.47813±0.00004 d, the initial epoch is T0=HJD2455268.5270±0.0007. USNO-B1.0 1229-0276915 has been classified as EA-type. This star is rather faint for the 180mm telescope: 16.821 – 17.593 (R), the period is P=0.46908±0.00004 d, the initial epoch is T0=HJD2455268.8822±0.0011.

Simbad object(s): USNO-B1.0 1229-0276915, USNO-B1.0 1238-0228470,

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