of the UGSU-type nature of optical transient
of the discovery of the optical transient
OT_J084555.1+033930 in Hya, I have pleasure to
herewith report my detection of superhumps in this
system. My unfiltered CCD observations were made on
2008, Jan 24/25 over a time span of 3.5 hours under
moderate sky conditions (clear, but strong
moonlight). I used a 0.35-m f/6.3 telescope with
ST-7XME CCD camera. The resulting light curve is
Following the recent announcement in the "CBAT
Unconfirmed Observations Page"
Our CBA Belgium Observatory light
curve clearly shows superhumps with an amplitude of
about 0.2 mag and a period of 0.0577 +/- 0.0055 d.
The latter was determined using the ANOVA method,
implemented in Peranso.
Hence, OT_J084555.1+033930 is a new member of the
SU UMa-type dwarf novae.
ANOVA period window showing
superhump period at 0.0577d
Superhump profile at P=0.0577d
It will be interesting to eep on monitoring this
target during its present outburst !