Article in PDF |
"Peremennye Zvezdy", Prilozhenie, vol. 9, N 34 (2009) |
#1. Astrotel Observatory, Karachay-Cherkessia, Russia;
#2. Surgut, Russia; #3. Grodno, Belarussia |
ISSN 2221–0474 |
Received: 13.12.2009; accepted: 22.12.2009
(E-mail for contact: bredfild@mail.ru, sav@surgut.ru, bs25@mail.ru,doctorandrey@mail.ru)
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Remarks: |
During observations of a field in Gemini, we discovered a new dwarf nova USNO-B1.0
1144-0115322.
Our observations were carried out at the Astrotel-Caucasus observatory using the 300-mm Ritchey-Chretien telescope equipped with an Apogee Alta U9000 CCD camera without filters. A total of 26 images with 5-minute exposures were obtained on JD 2455146 - 2455158. For basic reduction for dark current, flat fields and bias, and for photometry we used MaxIm DL software. The comparison star was USNO-A2.0 1125-03980860 = USNO-B1.0 1144-0115338 (06:26:59.41 +24:28:51.7, J2000, 2MASS; R1 = 15.97, R2 = 16.04, USNO-B1.0). Unfiltered magnitudes were calibrated using the comparison star, assuming Rcomp = 16.005. The spectra obtained by Pejcha (2009) upon our preliminary announcement correspond to a dwarf nova in outburst. |
References: |
Pejcha, O., 2009, vsnet-alert 11678 |
Light Curve Finding Chart Data Source |