[vsnet-alert 11822] Re: CSS100217:104411+211307

[Gianluca Masi]

Dear Colleagues,

I did time-resolved photometry on this target, starting on Feb 18 at 
20.00 UT. The star was still bright (~ 12.6 Unfiltered), I stopped after 
one hour because of clouds.

Data show a clear humping profile and I can guess a period of about 1.5 
hours. I can estimate an amplitude of about 0.05 mag.

Here is the lightcurve:
http://virtualtelescope.bellatrixobservatory.org/css_18feb2010.jpg

Best,
Gianluca Masi
The Virtual Telescope Project


Hiroyuki Maehara ha scritto:
>  The CRTS (Drake et al. 2009, ApJ, 696, 870) detected a bright (12.5mag)
> transient at R.A.=10 44 11.43, Decl.=+21 13 07.1. The object has an 
> X-ray counterpart in the ROSAT Faint Source Catalog (1RXS J104409.6+211334).
> This object also has a faint blue counterpart (~ 19 mag) in the SDSS 
> and the USNO catalog.
>  The object is likely an outbursting dwarf nova with a large 
> outburst amplitude. Time-resolved photometry are encouraged.
> 
> 
> 1002171210554127510 2010-02-17T08:24:11 2010-02-17T08:04:13 10 44 11.43 +21 13 07.1 12.53 12.63 12.57 12.56 http://nesssi.cacr.caltech.edu/catalina/20100217/1002171210554127510.html
> 
> 
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