[vsnet-alert 24381] HT Cas outburst (since June 24)

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

HT Cassiopeiae  (UGSU+E)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=6551

Visual magnitude estimates by P. Schmeer, Bischmisheim, Germany:
CASHT 20200623.991 <139 Scp
CASHT 20200625.049  128 Scp
Sequence: AAVSO (V magnitudes)
Instrument: 203-mm SCT

ZTF light curve:
https://lasair.roe.ac.uk/object/ZTF17aaafieu/
CASHT 20200624.387 13.945zg (Zwicky Transient Facility Lasair (Masci+ 2019))
CASHT 20200624.468 13.793zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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/light_curves/a6b62e44-3c42-45db-ad0b-146abe344745

Time-resolved photometry is required.

Clear skies,
Patrick