[vsnet-campaign-dn 15786] TCP J17532723+0054257: new transient (mag. 14.7) in Ophiuchus

Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-campaign-dn vsnet-campaign-dn at ooruri.kusastro.kyoto-u.ac.jp
Mon Jun 21 07:15:16 JST 2021


TCP J17532723+0054257 = GEOTS-2021-009  (UG:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2223216
 
Complete ASAS-SN Sky Patrol light curve and data (contaminated):
https://asas-sn.osu.edu/sky-patrol/coordinate/9da4fdff-7326-4174-9a0e-402a6e536006
 
Observed by ATLAS above quiescence on 2021 June 19.44 UT (orange mag. ~18.4).

Likely a large-amplitude dwarf nova outburst. Time-resolved photometry is required.
 
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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