[vsnet-alert 12803] Re: OT J120052.9-152620 = Catalina transient

[Gianluca Masi]

Dear Colleagues,

while going to end this short, 2.5 hours long session, I
confirm this is a new SU UMa star, with a full sh amplitude
of 0.25 mag. An estimate by eye for Psh seems to indicate 
avalue of 1.9 hours.

The star is bright, so it can be an easy target for
photometry. Further observations are welcome!

Regards,
Gianluca


----- Original Message -----
Da : "Gianluca Masi - VT"
<tvt at virtualtelescope.bellatrixobservatory.org>
A : Taichi Kato <tkato at kusastro.kyoto-u.ac.jp>,
variable_star_forum at yahoogroups.com,
vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp,
vsnet-alert at yahoogroups.com,
vsnet-campaign-dn at ooruri.kusastro.kyoto-u.ac.jp,
vsnet-newvar at ooruri.kusastro.kyoto-u.ac.jp,
vsnet-newvar at yahoogroups.com,
vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp,
vsnet-outburst at yahoogroups.com
Oggetto : [vsnet-alert 12802] Re: OT J120052.9-152620 =
Catalina transient
Data : Mon, 07 Feb 2011 03:48:32 +0100

> Dear Colleagues,
> 
> I'm observing this star right now, remotely using the
> photometric unit of the Virtual Telescope Project: it is
> still bright at mag 14.3 right now.
> 
> After one hour of coverage, I see a curve inclucing a
> minimum, with a possible full amplitube of 0.2 mags.
> 
> So, very likely, this is a SU UMa class CV.
> 
> Regards,
> Gianluca
> 
> > 
> > 
> > From: Taichi Kato <tkato at kusastro.kyoto-u.ac.jp>
> > Date: Sun, 06 Feb 2011 13:32:14 +0900
> > Subject: [vsnet-alert 12792] OT J120052.9-152620 =
> > Catalina transient
> > 
> > OT J120052.9-152620 = Catalina transient
> > 
> >    Catalina has detected this transient
> > (=CSS110205:120053-152620). This bright CV has numerous
> > past outbursts, and ASAS-3 also recorded many outbursts.
> > Apparently the brightest one in 2001 February looks like
> > a superoutburst (note that the present outburst is
> > equally bright). The object appears to be an overlooked
> > bright CV with relatively frequent outbursts.  Further
> > observations are encouraged!
> > 
> >   YYYYMMDD(UT)   mag  observer
> >   20010214.2367 <14.50V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> >   20010214.2669 13.388V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> >   20010215.2363 13.519V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> >   20010215.2516 13.961V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> >   20010218.2379 13.978V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> >   20010221.2296 14.242V  (ASAS (Pojmanski, G. 2002, Acta
> > Astron. 52,397))
> > 
> > CSS110205:120053-152620
> >
>
http://nesssi.cacr.caltech.edu/catalina/20110205/1102050150634124006.html
> > 12 00 52.93 -15 26 20.3 14.13 No SDSS object CV
> > 
> > [Allegato : file_senzanome ]