[vsnet-alert 25386] VX For superoutburst (since Jan. 17): second rebrightening (Feb. 9/10)

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert]

 VX Fornacis (UGWZ)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=14265

Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/42624d4c-c544-4647-99c5-19061104c709
 
First detected by Josch Hambsch (HMB):
https://app.aavso.org/webobs/results/?star=VX+For
Also reported by Gary Poyner (vsnet-obs 92756).
 
The next rebrightening is expected for February 13 (Saturday).
Time-resolved photometry is still encouraged.
 
Clear skies,
Patrick
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     Am Dienstag, 9. Februar 2021, 13:36:53 MEZ hat Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
  VX Fornacis (UGWZ)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=14265
 
Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/21a669a1-63b6-4b93-affa-abcf3337ad04
 
AAVSO data (rebrightening observed by Gordon Myers, MGW):
https://app.aavso.org/webobs/results/?star=000-BCV-925
 
Clear skies,
Patrick
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    Am Montag, 1. Februar 2021, 13:21:51 MEZ hat Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
  VX Fornacis (UGWZ)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=14265
 
Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/cad12c87-81e6-4598-b59d-f7ab03c1a020
 
AAVSO data:
https://app.aavso.org/webobs/results/?star=000-BCV-925
 
Clear skies,
Patrick
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    Am Sonntag, 24. Januar 2021, 09:57:28 MEZ hat 反保雄介 <tampo at kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
 VX For: likely emergence of ordinary superhumps

Itoh-san, Berto Monard, Josch Hambsch, and Peter Nelson reported further
observations of VX For.
Observations on 22nd Jan. by Berto Monard showed single-peaked variations
for two cycles. This is likely the emergence of ordinary superhumps.

Its period is around 0.06d, which is roughly consistent with superhumps
observed in its previous outburst in 2009.
Further observations are requested to confirm the Stage A superhump period.

Best,
Yusuke