QZ Ser: Rare, Short Outburst in February
P. Schmeer found a rare, bright outburst (11.9mag) of QZ Her on February
4. His observation also showed it was still faint on February 3 (vsnet-campaign-dn
2088, vsnet-campaign
1281, 1283,
vsnet-campaign-news
130). It has been suspected that the object is a WZ Sge-like rare
object which experience an outburst once in a few years (vsnet-campaign
1282). P. Schmeer forwarded the comments by J. Thostensen, in which
he noticed that the identification of QZ Ser formerly marked in the Downes
live CV atlas was incorrect (see also vsnet-campaign
1288), and that the quiescent spectrum showed a strong contribution
from a late-type secondary star. This indicates the orbital period is
relatively long (vsnet-campaign
1285, vsnet-campaign-dn
2090). P. Schmeer reported the outburst amplitude was estimated to
be 5 mag on the basis of the correct identification (vsnet-campaign
1286). The object significantly faded on February 5 and the outburst
finished (vsnet-campaign-dn
2091, 2096).