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Name
  ASASSN-21ha  
AAVSO UID
--  
Constellation
Chamaeleon Sequence
J2000.0
09 47 38.91 -78 21 07.3  (146.91213 -78.35203) Search nearby
B1950.0 09 48 00.13 -78 07 07.1
Galactic coord. 294.117 -18.763
Other names

(Internal only)
CWISE J094738.74-782106.8 DENIS J094739.0-782107 GALEX J094738.8-782106
GSC2.3 S453010545 Gaia21crc SMSS J094738.85-782107.1
USNO-A2.0 0075-02095496 USNO-B1.0 0116-0039785 VHS J094738.84-782106.9
WD J094738.90-782107.32 WISEA J094738.53-782107.4  
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Variability type
UG
Spectral type --
Mag. range
12.2 - 17.6 g
Discoverer ASAS-SN
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick Likely a double-superoutburst ("type-E") WZ Sge-type dwarf nova (vsnet-alert 25880), followed by at least six rebrightenings (vsnet-alert 26056). A previous outburst (Gmag. 16.50) was observed on 2018 September 22.395 UT by Gaia.
2 Schmeer, Patrick Prior to the outburst that was first detected on 2021 May 2, no brightenings had been recorded by the ASAS-SN Sky Patrol since 2014 April 29. Gaia EDR3 parallax 3.642 ± 0.063 mas (distance 272.6 ± 4.7 pc).
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References
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1 B. Monard; Y. Tampo, 2021, vsnet-alert #25880 --
2 P. Schmeer, 2021, vsnet-alert #26056 --
3 P. Schmeer, 2021, vsnet-alert #25930 --
4 Gaia Alerts, 2021 (online data) --
5 J. Hambsch; B. Monard; T. Kato, 2021, vsnet-alert #25878 --
6 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
7 ASAS-SN Transients (Shappee et al., 2014) 2014ApJ...788...48S
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Supporting Documents
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Revision History
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3 Schmeer, Patrick 2021-05-17 11:55 UTC Gaia Alerts name and reference added.
2 Schmeer, Patrick 2021-05-04 19:57 UTC Remark and reference added.
1 Otero, Sebastian Alberto 2021-05-04 03:52 UTC Minimum magnitude from SMSS. Gaia EDR3 position.

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