[vsnet-campaign-dn 15703] ASASSN-21ab outburst (since May 14)

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

 ASASSN-21ab (UG:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2215269
 
Kris Stanek (ASAS-SN) reports an outburst of ASASSN-21ab.
Previous outbursts were recorded from 2021 January 5 to 8
(ASAS-SN, ATLAS) and on 2021 May 8 (ASAS-SN).
Complete ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/50c429d0-f4ab-4abe-bdf6-9b279f9bf42b
 
Photometry, spectroscopy, and precise astrometry are encouraged.
 
Clear skies,
Patrick
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References:
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K
Asteroid Terrestrial-impact Last Alert System (ATLAS):
- Tonry et al., 2018PASP..130f4505T
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Am Donnerstag, 7. Januar 2021, 01:33:02 MEZ hat Taichi Kato Folgendes geschrieben:

ASASSN-21ab

ASASSN-21ab     ---     -------     6:53:47.11     -4:34:13.5     2021-01-6.41     15.79     SDSS     DSS     VIZIER     -------
CV candidate, in TESS, no Vizier match, g>17.8 on 2021-01-04.49, g=15.8 on 2021-01-05.49, g=16.0 on 2021-01-06.41.
ASASSN-21ab 20210104.49 <178g ASN
ASASSN-21ab 20210105.49 158g ASN
ASASSN-21ab 20210106.41 160g ASN  
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