[vsnet-alert 25918] TCP J09430280+2758080: dwarf nova outburst (mag. 13.9) in Leo

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

 TCP J09430280+2758080 (UGSS:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2222715

Prior to Nakamura-san's discovery this transient was automatically detected
by ASAS-SN - and reported (albeit not publicly) on 2021 May 30.1633 UT.
An ASAS-SN Transients name is not yet (publicly) available.
 
Complete ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/4f80ce1a-703f-4377-8774-a9925dc7e02a
 
Time-resolved photometry is 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
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Am Montag, 31. Mai 2021, 02:18:43 MESZ hat Naoto Kojiguchi Folgendes geschrieben:

TCP J09430280+2758080

No past outburst in the ASAS-SN and CRTS data.

TCP J09430280+2758080   2021 05 30.4968*  09 43 02.80 +27 58 08.0  14.2 U             Leo       9 0

2021 05 30.4968
Discovered by Yuji Nakamura, Kameyama, Mie, Japan, on two frames (15-s exp. limiting mag 15.5)
taken by 10cm/F3.0 refractor and CMOS camera. Nothing is visible at this location on the frames
taken on 2021 May 22.5123 UT (15-s exp. limiting mag 15.5) by same instrument.

TCPJ09430280+2758080 20210527.150 <15.197g ASN
TCPJ09430280+2758080 20210528.262 13.841g ASN
TCPJ09430280+2758080 20210529.171 13.977g ASN
TCPJ09430280+2758080 20210530.170 14.300g ASN
TCPJ09430280+2758080 20210530.4968 14.2C (Yuji Nakamura)
...