From jop at astro.columbia.edu  Tue Jun  5 17:11:43 2007
From: jop at astro.columbia.edu (Joe Patterson)
Date: Tue, 05 Jun 2007 17:11:43 -0400
Subject: (cba:news) SDSS1227+51 in outburst
Message-ID: <4665D18F.2040603@astro.columbia.edu>

Dear CBAers,

Following Tonny's (and Patrick's) announcement, northern observers 
should high-tail it to this formerly obscure star ("CVn" in the Downes 
et al catalog) and try to obtain light curves as long as possible.  The 
season's not promising, but with some global splicing, we might be able
to get the period issues straightened out.

No one knows how long this eruption will last, or how long to the next. 
  But the getting is pretty good right now!

I'll send out a full letter tomorrow.  GW Lib remains of very high 
interest, and pretty do-able now that Olde Whiteface has (somewhat) 
moved outa the way...

joe

So that's SDSS1227+51, or "CVn", labelled as m=19.1 but now in outburst.


From jop at astro.columbia.edu  Sat Jun  9 07:04:56 2007
From: jop at astro.columbia.edu (Joe Patterson)
Date: Sat, 09 Jun 2007 07:04:56 -0400
Subject: (cba:news) SDSS1227+51
Message-ID: <466A8958.5070603@astro.columbia.edu>

Dear CBAers,

Only a few nights have been obtained so far on this eclipsing 
superhumper.  It's admittedly poorly placed in the spring sky, but by 
splicing European and North American data we should be able to extract 
the main observational fact - namely the superhump period - with high 
precision.  Next year we can do a much more thorough campaign near 
minimum light, and derive the binary parameters.  I think this guy 
deserves the highest priority in the evening sky, even if the runs are 
pretty short.

joe