[vsnet-alert 8752] Re: Fw: DV Dra extremely rare outburst

[Ken'ichi Torii]

K. Hasuike and K. Torii (Osaka U.) report:

 "We imaged the DV Dra region with the ART 14 inch telescope, and
confirm the ~15 mag star near the DV Dra position.

12x12 arcminutes image (star time 11:22 UT, 
60s x 5frames in Rc under poor condition) 
is shown in the following.
http://wwwxray.ess.sci.osaka-u.ac.jp/~torii/tmp/dvdra_20051122.gif 

Preliminary analysis suggests that the position of the star  
(18 17 23.1, 50 48 18) (very rough estimate with ~5" uncertainty)
is about 18 arcseconds to the west compared to that in the GCVS catalog."

>> Subject: [vsnet-alert 8751] Re: Fw: DV Dra extremely rare outburst
>> 
>> 
>> According to the AAVSO QL files, Tim Parson has a visual 
>> observation of 14.9 on Nov 21.064UT.  Looks like the 
>> outburst has been confirmed!
>> 
>> Gary
>> -------------------------------------------------------------
>> Gary Poyner
>> garypoyner at blueyonder.co.uk
>> gp at star.sr.bham.ac.uk
>> http://www.garypoyner.pwp.blueyonder.co.uk/varstars.html
>> "You can always tell a Brummie....but you can't tell him much"!
>> --------------------------------------------------------------
>>  
>> 
>> > -----Original Message-----
>> > From: vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp
>> > [mailto:vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp] 
>> On Behalf 
>> > Of Daisaku NOGAMI
>> > Sent: 22 November 2005 09:30
>> > To: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp;
>> > vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp;
>> > vsnet-campaign-dn at ooruri.kusastro.kyoto-u.ac.jp
>> > Subject: [vsnet-alert 8750] Fw: DV Dra extremely rare outburst
>> > 
>> > Dear colleagues,
>> > 
>> > P. Schmeer reported his detection of an outburst of DV Dra 
>> as below.  
>> > Patrick's observations indicate that this outburst is in the early 
>> > phase, if DV Dra is really a WZ Sge-type dwarf novae.  Early 
>> > superhumps with a doubly-peaked shape may be observed at present.
>> > 
>> > We would first encourage confirmation of this outburst 
>> which occurred 
>> > after a 20-years dormancy.  Then, while DV Dra is not at a 
>> very good 
>> > position for observations, please try to carry out time-resolved 
>> > photometry.
>> > 
>> > Best regards,
>> > Daisaku Nogami
>> > 
>> 
>> 
>>