[vsnet-alert 10918] OT_J071126.0+440405: refined period

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Tue Jan 6 11:56:39 JST 2009


OT_J071126.0+440405: refined period

   Arto Oksanen and Nakajima-san have reported further observations.
The refined period of this eclipsing polar is 0.081376(2) d.

Oksanen's message:

===

Dear VSNET!

Attached is my third night of the Catalina transient. It was a long
run (10.5 hours) covering five eclipses. The overall light curve is
pretty much the same as previous nights. The star still varies between
mag 15 and mag 16 and shows deep and sharp 8 minute long eclipses.   I
observed the first eclipse with 10 s exposures and with faster
download (small subframe, minimal processing) but it was not fast
enough for seeing any gradual fading/brightening. The dataset of the
first eclipse is not included on the file, I will submit it
separately.

Light curves:
http://murtoinen.dyndns.org/ccd/OT_J0711+44/OT_J071126.0+440405_20090104.png
http://murtoinen.dyndns.org/ccd/OT_J0711+44/OT_J071126.0+440405_20090104_e4.png
http://murtoinen.dyndns.org/ccd/OT_J0711+44/eclipse_20090104_1900UT.gif

Observed remotelly with the 40 cm RC telescope of Hankasalmi
Observatory, FInland. SBIG STL-1001E CCD, 30 s exposures, no filter.

Observer: A. Oksanen


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