(cba:news) V1251 Cyg in eruption

[Joe Patterson]

Dear CBAers,

We've been waiting for this guy to erupt for a very, very long time 
(since 1991).  The superhump period at that time was 0.076 d - common 
enough, but the humps took a very long time to develop - and stars of 
that type usually have very small secondaries.  That's odd for a star of 
fairly longish period (long, that is, within the SU UMa class).  That 
combination fingers V1251 as a suspected member of the very evolved, 
"period bouncer" class.  I've been sporadically trying to find evidence 
to evaluate this since 1995, but photometry at quiescence has revealed 
nothing.

Now this!  From the brightness, my STRONG guess is that this is a 
superoutburst... and this is without doubt the prime target of
the (northern) fall, and possibly the year.  It's likely early in the 
outburst too - 12.5 is about as bright as ever seen.

A superb object for time-series photometry in the next few weeks!

joe

-------- Original Message --------
Subject: 	[baavss-alert] RE: [cvnet-outburst] V1251 Cyg outburst
Date: 	Sun, 19 Oct 2008 22:54:13 +0200
From: 	Eddy Muyllaert <eddy.muyllaert1 at telenet.be>
Reply-To: 	baavss-alert at yahoogroups.com
To: 	<cvnet-outburst at yahoogroups.com>, <baavss-alert at yahoogroups.com>,
<vsnet-alert at yahoogroups.com>
References: 	<20081019202954.898BC54002 at monty.telenet-ops.be>



Very rare outburst V1251 Cyg confirmed!

V1251 CYG OCT 19.8646 12.5 OUTBURST!

Congrats Hubert!

Regards,
Eddy Muyllaert (MUY)
Oostende
Belgium

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Van: cvnet-outburst at yahoogroups.com
<mailto:cvnet-outburst%40yahoogroups.com>
[mailto:cvnet-outburst at yahoogroups.com
<mailto:cvnet-outburst%40yahoogroups.com>]
Namens Hubert Hautecler
Verzonden: zondag 19 oktober 2008 22:30
Aan: cvnet-outburst at yahoogroups.com
<mailto:cvnet-outburst%40yahoogroups.com>
Onderwerp: [cvnet-outburst] V1251 Cyg outburst

It seems this one is in outburst. Can someone confirm?
According the LGC of the AAVSO is the last outburst more then 10 years ago.

V1251 CYG 2454759.3340 12.4 HHU OUTBURST

clear skies, Hubert
VVS Werkgroep Veranderlijke Sterren
http://www.vvs. <http://www.vvs.be/wg/wvs/ <http://www.vvs.be/wg/wvs/>>
be/wg/wvs/

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