HS2331+3905, the big one!

From: Joe Patterson <*jop_at_astro.columbia.edu*> Date: Tue, 04 Sep 2007 16:32:17 -0400 · jop_at_astro.columbia.edu

Dear CBAers,

HS2331+3905 has just erupted!  This is the first eruption ever, AND it 
is surely one of the strangest and most important CVs in the sky.  Plus 
it's 13th mag at least, and transiting near local midnight.  I'll be 
sending out many notices soon about this star.  I've learned a lot about 
it in our past two years of coverage, but certainly didn't think I was 
going to see an eruption any time soon!

It's THE TOP PRIORITY for all northern observers.  Great will be your 
pangs of conscience if you don't get to a telescope mighty soon!

joe

Downes et al. have it as "And", and a very good paper is by 
Araujo-Betancor et al. (I think 2005).