Peremennye Zvezdy

Article in PDF
"Peremennye Zvezdy",
Prilozhenie
,
vol. 10, N 5 (2010)

A New Eclipsing Variable Near U Geminorum

T. Sauer
Munich, Germany

ISSN 2221–0474

Received:   25.01.2010;   accepted:   16.02.2010
(E-mail for contact: ths12@t-online.de)


Star Name: Raf V132
Coordinates (J2000): 07 52 57.30, +21 48 33.7
Variability type: EW;   Limits, System: 15.6 - 16.3;    
Period: 0.339169 d;   Epoch(min): JD 2454912.42422

Remarks:
On February 3, 2009, U Geminorum was observed for several hours. We used a GSO-Newton 200/800 telescope with a SBIG ST10 camera installed near Munich. The exposure times for single images were 2 minutes. An L (IR-blocking) filter was applied. In these data, we found a new variable star, an EW eclipsing variable. We continued to observe it on March 21, April 13, April 15, and April 21, with exposure times of 1 min. On January 19, 2010, this star was observed again in the north of Austria with a Carbon-Newton (InterconSpacetec) 200/800 telescope and a SBIG ST10 camera, also with 1-minute exposures and the same L filter. Dark and flat field reductions were performed by CCDSoft and photometry, by MaximDL.

MinII = 16.2.

Light Curve
A New Eclipsing Variable Near U Geminorum
Top: the light curves of the new variable (left scale applies). Bottom: the light curves of the check star (right scale applies). All observations were folded with the tabulated period.
Finding Chart
A New Eclipsing Variable Near U Geminorum
Size: 13.2' x 11.2'. Reference star = GSC 1375-00619, brightness = 13.3 mag. Check star = GSC 1375-00253, brightness = 13.9 mag.
Data Source
  1. data_ew_at_gsc1375_519_918.txt


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