[vsnet-outburst 18959] DDE 26 superoutburst (ASAS-SN CV Patrol)

[Patrick Schmeer]

DDE 26  (UGSU - similar to MN Dra)

DDE26 20151204.244 15.83V ASN

Previous VSNET messages (2012 July 27 - Aug. 1):

DDE 26: new SU UMa-type dwarf nova
Colin Littlefield has reported the following data:
"I just finished a 3.5-hour time series on DDE 26.
It shows 0.3-mag superhumps with a period of
~2.17 hours, so it is in the lower end of the
period gap."
Further observations are encouraged!
(Taichi Kato, vsnet-alert 14799)

DDE 26: refined superhump period
We have received observations from Crimean
Astroph. Obs. Team (observer: Oksana
Antonyuk).  Combined with Littlefield's
observation, we have obtained a refined period
of 0.08947(7) d.  Other aliases appear to be
excluded based on O-C analysis.
(Taichi Kato, vsnet-alert 14814)

DDE 26: period variation
Crimean Astroph. Obs. team (observers
O. Antonyuk, A. Baklanov, relayed by
E. Pavlenko) reported further observations.
The object appears to show a large negative
Pdot of -26(11)*10^(-5), similar to the
long-Psh system MN Dra.
(Taichi Kato, vsnet-alert 14818)

Regards,
Patrick

--------------------------------------------
Patrick Schmeer wrote (vsnet-alert 19311):

 Subject: DDE 26 outburst (ASAS-SN CV Patrol)
  
 DDE 26  (UGSU)
 
 DDE26 22:03:28.22 30:56:36.80 18.11
 2015/12/01 05:09 57357.214699999895 15.71
 15.66 57357.21722 
 
 DDE26 29151128.2    <16.38V ASN
 DDE26 20151201.215   15.71V ASN
 DDE26 20151201.217   15.66V ASN
 
 The International Variable Star Index (VSX):
 https://www.aavso.org/vsx/index.php?view=detail.top&oid=270209
 
 Clear skies,
 Patrick