[vsnet-alert 12970] Re: QZ Ser very rare outburst

[Taichi Kato]

   Please note that QZ Ser has a short orbital period comparable to
SU UMa-type dwarf novae, but the secondary is massive.
It would be interesting to see if the object can develop superhumps.

> Visual magnitude estimates by P. Schmeer, Bischmisheim,
> Germany:
> SERQZ 20110309.04  <136 Scp
> SERQZ 20110312.042  120 Scp
> SERQZ 20110312.083  120 Scp
> Sequence: AAVSO
> Instrument: 203-mm SCT
>
> Only three outbursts of this CV were previously observed:
> 1998 June 17.547 UT, mpg=3D 12.7 (Katsumi Haseda, vsnet-obs 18349)
> 2002 Feb.  4.228 UT, mv =3D 12.0 (Patrick Schmeer, vsnet-alert 7156)
> 2006 Dec. 29.235 UT, mv =3D 13.6 (Patrick Schmeer, vsnet-alert 9184)
>
> The mean cycle length of QZ Ser appears to be about
> 4 years.