[vsnet-alert 20367] MASTER OT J072948.66+593824.4 bright outburst (ASAS-SN CV Patrol)

[Patrick Schmeer]

MASTER OT J072948.66+593824.4  (UGSU)

Mag. range: 13.3 - 20 CR
Constellation: Lynx

The International Variable Star Index (VSX):
https://www.aavso.org/vsx/index.php?view=detail.top&oid=278065

MASTER072948.66+593824.4 07:29:48.66 59:38:24.40 16.56
2016/11/16 12:29 57708.52069000015 13.05
15.60 56661.41726 

MASTER_OT_J072948.66+593824.4 20161113.5   <15.95 ASN
MASTER_OT_J072948.66+593824.4 20161116.521  13.05 ASN

Bright outburst (supermaximum?) -
time-resolved photometry is strongly recommended.

Clear skies,
Patrick

-------------------
PS:

MASTER_OT_J072948.66+593824.4: superhumps?

We have received further observations
Roger Pickard, Enrique de Miguel, Ian Miller,
and Sergey Shugarov .
According to these data, this object showed
variations like superhumps on Feb 21. The
decrease of amplitude was not seen. 
Meanwhile, the period was not stable. With
data reported on Feb 22, 0.06648(10) d was
obtained. Meanwhile 0.06373(9) d was
obtained on Feb 20. This difference seem too
large if this stems from the difference of
stages. Additionally, clearly period around
0.06 d was not seen on Feb 21
(Though 0.0834(3) d was obtained with PDM
method, the light curve implies that this
period was not so reliable.)

Further observations are encouraged!
(Ohshima-san, vsnet-alert 14263, 2012-02-22)
-------------------

MASTER_OT_J072948.66+593824.4: negative superhumps?

An analysis of the data yielded apparent two
strong periodicities 0.06237(3) d, dominating
signal, and 0.06436(4) d.
The waveform of the former resembles those of
negative superhumps in ER UMa. The former
period is 3.1% shorter than the latter period.
If the second period corresponds to the
orbital period, we may be witnessing negative
superhumps as the main signal!
(There may be some indication of a period of
0.0665 d -- positive superhumps?).
Further observations (as well as in future
quiescence) are naturally most strongly
desired!
(Taichi Kato, vsnet-alert 14265, 2010-02-22)