(cba:news) DV Dra extremely rare outburst (fwd)

Joe Patterson jop at astro.columbia.edu
Tue Nov 22 08:18:36 EST 2005

Dear CBAers,

Here's Patrick Schmeer's announcement of a DV Dra outburst.  Normally this
would be too far over in the eastern sky for us... but with European *and*
American coverage, we should be able to spot superhumps if they're there.
So it's a good target for the early evening - much as I hate to divert
attention from HS2331+39.

Hard to argue with the first eruption in 21 years.


Unfiltered CCD observations by P. Schmeer, Bischmisheim, Germany:
DRADV 20051115.065 <175CR Scp
DRADV 20051117.067 <180CR Scp
DRADV 20051118.064 <172CR Scp
DRADV 20051119.064 <180CR Scp
DRADV 20051122.062  151CR Scp
Instrument: University of Iowa, Rigel Telescope (0.37-m Cassegrain)
Sequence: Henden and Sumner (R magnitudes derived from V and B-V)

On the outburst image I measured the following position:
R.A. 18h17m23.07s  Decl. +50o48'17.7"  (J2000.0)

The only previously recorded outburst (a supermaximum) of this
UGWZ candidate was observed on 1984 June 1.9 UT at mpg= 15.0
(IBVS 3626).

Time-resolved photometry is very urgently required.


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