TNS Astronomical Transient Report No. 81619 [ 2020TNSTR2758....1B ]

Date Received (UTC): 2020-09-09 19:22:31
Date made public:
Sender: Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

J. Brimacombe, K. Z. Stanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020swi
Discoverer internal name: ASASSN-20ll
Coordinates (J2000): RA = 00:58:44.738 (14.68641) DEC = -67:13:12.76 (-67.22021)
Discovery date: 2020-09-08 20:24:00.000 (JD=2459101.35)

Potential host galaxy: WISEA J005845.40-671259.3

Remarks: Present in two epochs, confirmed via follow-up imaging, in TESS Sector 29 Camera 3, unknown redshift host

Photometry

Discovery (first detection):
Discovery date: 2020-09-08 20:24:00.000
Flux: 17.7 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2020-09-03 20:24:00
Limiting flux: 17.2 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2020swi