|#1. Siberian State Aerospace University, Krasnoyarsk, Russia;
#2. Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia;
#3. Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia;
Received: 6.09.2012; accepted: 28.02.2013
(E-mail for contact: firstname.lastname@example.org)
1. USNO-A2.0: B=15m.5, R=13m.1.
2MASS: J=10m.018, H=9m.179, K=8m.823.
6. MinII=15m.24. Sligth O`Connell effect.
9. 2XMMi-DR3 Catalog: 2XMM J192008.4+435106, HR1=0.817, HR2=–0.233, HR3=–0.439, HR4=0.369.
12. USNO-A2.0: B=15m.3, R=13m.4.
2MASS: J=11m.009, H=10m.093, K=9m.897.
15. USNO-A2.0: B=14m.2, R=13m.2.
2MASS: J=11m.998, H=11m.513, K=11m.478.
The star shows no noticeable variability in NSVS data.
31. USNO-A2.0: B=15m.0, R=13m.8.
2MASS: J=12m.577, H=12m.021, K=11m.907.
33. The twice longer period with EW type is also not excluded.
35. USNO-A2.0: B=15m.0, R=13m.0.
2MASS: J=11m.669, H=11m.084, K=10m.919.
36. USNO-A2.0: B=14m.8, R=12m.5.
2MASS: J=9m.988, H=9m.057, K=8m.805.
40. USNO-A2.0: B=16m.2, R=14m.0.
2MASS: J=11m.224, H=10m.294, K=10m.070.
41. USNO-A2.0: B=14m.0, R=12m.1.
2MASS: J=8m.752, H=7m.844, K=7m.541.
42. A close pair of two stars.
51. The one-day alias, P = 0d.334285, is also possible.
53. USNO-A2.0: B=15m.0, R=13m.5.
2MASS: J=11m.832, H=11m.275, K=11m.186.
56. USNO-A2.0: B=14m.4, R=12m.3.
2MASS: J=9m.777, H=8m.844, K=8m.578.
61. MinII=13m.99. A close pair of two stars.
63. USNO-A2.0: B=16m.8, R=14m.6.
2MASS: J=11m.976, H=11m.115, K=10m.878.
Our observations of an area in Lyra (centered at α=19h25m.0, δ=42°47′ J2000.0) were performed in the observatory of the Siberian State Aerospace Univercity with a Hamilton telescope (D = 400 mm, F = 915 mm) equipped with an FLI ML9000 CCD chip (3056×3056 pixels, pixel size 12 μm). All our unfiltered CCD observations were obtained during two time intervals: August 21 – November 07, 2010 and August 21 – September 17, 2011. Exposure times of all frames were 30 seconds. The area of our CCD images is 2°.3 × 2°.3. The magnitudes were referred to red magnitudes of comparison stars from the USNO-A2.0 catalog (Monet et al. 1998). We used VaST (Sokolovsky and Lebedev, 2005) software to search for new variable stars. To determine periods, we applied WinEfk software created by Dr. V.P. Goranskij.
Acknowledgements: The authors wish to thanks Dr. V.P. Goranskij for providing his efficient period-search software and Dr. K.V. Sokolovsky for providing VaST (a software package for detection of variable objects on a series of astronomical images).
Monet, D., Bird, A., Canzian, B., et al., 1998, USNO-A2.0, A Catalog of Astrometric Standards (U.S. Naval Observatory, Washington, DC), Centre de Donnees Astronomiques de Strasbourg, I/252
Sokolovsky, K., Lebedev, A., 2005, in 12th Young Scientists' Conference on Astronomy and Space Physics, Kyiv, Ukraine, April 19-23, 2005, eds.: Simon, A.; Golovin, A., p.79