Notes
I started observations of ASAS023322 on Jan 22.817 2006, using a 0.20-m
f/10
telescope and (unfiltered) ST-9 camera.
The session lasted for nearly 57 minutes and had to be interrupted
because
of clouds.
An inspection of the light curve shows possible modulation, with
an
amplitude of 0.2 mag.
Light Curve
http://astrosurf.com/blazar/variable/UG06/Light%20Curve%20ASAS0233.jpg
Regards
Diego Rodriguez
I performed period analysis using the data obtained by VSOLJ members
(K.Nakajima, S.Kiyota, and H.Maehara) on Jan. 22, 23, 24, and 25.
The best estimated period is 0.05491(5) days.
Double-peaked early superhumps are shown in our data. Phase-averaged
light curve can be seen at
http://www.cetus-net.org/ftp/light_curves/asas0233_early_superhump.png
ASAS 023321.4-104704 seem to be a new WZ Sge-type dwarf nova.
Further observations are strongly encouraged.
Regards,
Hiroyuki Maehara
Dear colleagues,
ASAS 023322-1047.0 finally has left its initial outburst stage, trading
in
"early superhumps" for regular superhumps. Today, Hiroyuki Maehara
(Japan)
announced that his CCD observations show full superhumps with an amplitude
of 0.2 mag. Our own observations of yesterday evening (JD +763.4) only
revealed early superhumps with 0.05 mag amplitude. Maehara's observations
at
JD +763.9 indicate that the transition must have been fast and quite
spectacular.
light curve can be seen at
http://users.skynet.be/fa079980/cv_2006/ASAS0233_2006_Jan_23.htm
Tonny Vanmunster
CBA Belgium Observatory
|
Raw
data AAVSO International Database
