V1251 Cyg in eruption

From: Joe Patterson <*jop_at_astro.columbia.edu*> Date: Sun, 19 Oct 2008 17:37:25 -0400 · jop_at_astro.columbia.edu

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@telenet.be>
Reply-To: 	baavss-alert@yahoogroups.com
To: 	<cvnet-outburst@yahoogroups.com>, <baavss-alert@yahoogroups.com>,
<vsnet-alert@yahoogroups.com>
References: 	<20081019202954.898BC54002@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

_____

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

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]

__._,_.___
Messages in this topic
<http://groups.yahoo.com/group/baavss-alert/message/1836;_ylc=X3oDMTM1OXRldGh0BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRtc2dJZAMxODM2BHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTIyNDQ0OTY1MgR0cGNJZAMxODM2> 

(1) Reply (via web post)
<http://groups.yahoo.com/group/baavss-alert/post;_ylc=X3oDMTJxMXY0cXZmBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRtc2dJZAMxODM2BHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTIyNDQ0OTY1Mg--?act=reply&messageNum=1836> 

| Start a new topic
<http://groups.yahoo.com/group/baavss-alert/post;_ylc=X3oDMTJmNGhhbXA1BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNudHBjBHN0aW1lAzEyMjQ0NDk2NTI-> 

Messages
<http://groups.yahoo.com/group/baavss-alert/messages;_ylc=X3oDMTJmdjllcTQ5BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNtc2dzBHN0aW1lAzEyMjQ0NDk2NTI-> 

| Files
<http://groups.yahoo.com/group/baavss-alert/files;_ylc=X3oDMTJndWNvMG84BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNmaWxlcwRzdGltZQMxMjI0NDQ5NjUy> 

| Photos
<http://groups.yahoo.com/group/baavss-alert/photos;_ylc=X3oDMTJmNGV1YmxuBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNwaG90BHN0aW1lAzEyMjQ0NDk2NTI-> 

| Links
<http://groups.yahoo.com/group/baavss-alert/links;_ylc=X3oDMTJnaHY5cGppBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNsaW5rcwRzdGltZQMxMjI0NDQ5NjUy> 

| Database
<http://groups.yahoo.com/group/baavss-alert/database;_ylc=X3oDMTJkcDg3NjkyBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNkYgRzdGltZQMxMjI0NDQ5NjUy> 

| Polls
<http://groups.yahoo.com/group/baavss-alert/polls;_ylc=X3oDMTJnc3EwamtiBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNwb2xscwRzdGltZQMxMjI0NDQ5NjUy> 

| Members
<http://groups.yahoo.com/group/baavss-alert/members;_ylc=X3oDMTJmM21yMDczBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNtYnJzBHN0aW1lAzEyMjQ0NDk2NTI-> 

| Calendar
<http://groups.yahoo.com/group/baavss-alert/calendar;_ylc=X3oDMTJlY25kbG9uBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNjYWwEc3RpbWUDMTIyNDQ0OTY1Mg--> 

--------------------------------------------
Visit the BAA Variable Star Section web site at...

http://www.britastro.org/vss/
--------------------------------------------

Yahoo! Groups
<http://groups.yahoo.com/;_ylc=X3oDMTJlcTdwdHVzBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNnZnAEc3RpbWUDMTIyNDQ0OTY1Mg--> 

Change settings via the Web
<http://groups.yahoo.com/group/baavss-alert/join;_ylc=X3oDMTJnaTFqaHJ0BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNzdG5ncwRzdGltZQMxMjI0NDQ5NjUy> 

(Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest
<mailto:baavss-alert-digest@yahoogroups.com?subject=Email Delivery:
Digest> | Switch format to Traditional
<mailto:baavss-alert-traditional@yahoogroups.com?subject=Change Delivery
Format: Traditional>
Visit Your Group
<http://groups.yahoo.com/group/baavss-alert;_ylc=X3oDMTJlcWhvdDVxBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDZnRyBHNsawNocGYEc3RpbWUDMTIyNDQ0OTY1Mg--> 

| Yahoo! Groups Terms of Use <http://docs.yahoo.com/info/terms/> |
Unsubscribe <mailto:baavss-alert-unsubscribe@yahoogroups.com?subject=>
Recent Activity

     *
        2
       New Members

<http://groups.yahoo.com/group/baavss-alert/members;_ylc=X3oDMTJncGMzODVvBF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDdnRsBHNsawN2bWJycwRzdGltZQMxMjI0NDQ5NjUy>

Visit Your Group
<http://groups.yahoo.com/group/baavss-alert;_ylc=X3oDMTJmZjd1ODQ4BF9TAzk3MzU5NzE0BGdycElkAzExODQzOTA4BGdycHNwSWQDMTcwNTA4Mjg0NQRzZWMDdnRsBHNsawN2Z2hwBHN0aW1lAzEyMjQ0NDk2NTI-> 

Yahoo! News

Kevin Sites
<http://us.ard.yahoo.com/SIG=13of9llue/M=493064.12016309.12445701.8674578/D=groups/S=1705082845:NC/Y=YAHOO/EXP=1224456852/L=/B=UDwOG0LaX9M-/J=1224449652492505/A=3848607/R=0/SIG=10q7s9jm5/*http://hotzone.yahoo.com>

Get coverage of

world crises.

Yahoo! Groups

Stay healthy
<http://us.ard.yahoo.com/SIG=13o9mv2bu/M=493064.12662708.12980600.8674578/D=groups/S=1705082845:NC/Y=YAHOO/EXP=1224456852/L=/B=UTwOG0LaX9M-/J=1224449652492505/A=5349274/R=0/SIG=11nhsqmjq/*http://advision.webevents.yahoo.com/EverydayWellness/>

and discover other

people who can help.

Featured Y! Groups

and category pages.
<http://us.ard.yahoo.com/SIG=13oucivc7/M=493064.12016306.12445698.8674578/D=groups/S=1705082845:NC/Y=YAHOO/EXP=1224456852/L=/B=UjwOG0LaX9M-/J=1224449652492505/A=4763760/R=0/SIG=11ou7otip/*http://advision.webevents.yahoo.com/bestofyahoogroups/>

There is something

for everyone.

.

__,_._,___