[vsnet-alert 12969] Re: QZ Ser very rare outburst

[Patrick Schmeer]

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= 12.7 (Katsumi Haseda, vsnet-obs 18349)
2002 Feb.  4.228 UT, mv = 12.0 (Patrick Schmeer, vsnet-alert 7156)
2006 Dec. 29.235 UT, mv = 13.6 (Patrick Schmeer, vsnet-alert 9184)

The mean cycle length of QZ Ser appears to be about
4 years.

Regards,
Patrick