Peremennye Zvezdy

Article in PDF
"Peremennye Zvezdy",
Prilozhenie
,
vol. 9, N 34 (2009)

The New Dwarf Nova USNO-B1.0 1144-0115322

T. Kryachko#1, A. Samokhvalov#2, B. Satovskiy#1, A. Prokopovich#3
#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)


Star Name: USNO-B1.0 1144-0115322
Coordinates (J2000): 06 26 57.69, +24 29 07.2
Variability type: UG;   Limits, System: 15.7 - (19 (R);    
Period: Epoch(max): JD 

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
The New Dwarf Nova USNO-B1.0 1144-0115322
Finding Chart
The New Dwarf Nova USNO-B1.0 1144-0115322
Data Source
  1. usno-b1.0-1144-0115322_lc-cr.txt


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