TNS Astronomical Transient Report No. 168851 [ 2023TNSTR.115....1K ]

Date Received (UTC): 2023-01-16 20:10:57
Date made public:
Sender: Malhar Kendurkar
Reporting Group: GSNST     Discovery Data Source: GSNST

M R. Kendurkar (PGAO, Canada), D.D Balam (Dominion Astrophysical Observatory, National Research Council of Canada), C. Raguenaud, R. Chinchwadkar (GCOE, India), A. Chapman, K. Alton (DBO, USA), J.B Desroiser (OMSJ, Canada), A. Sehgal (AMO, Canada), J. Newton, M J. Cook (Newcastle Observatory, Canada), and D. Lane (Abbey Ridge Observatory, Canada) for GSNST Team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2023sp
Discoverer internal name: GSNST-23aa
Coordinates (J2000): RA = 10:55:23.774 (163.849058) DEC = +57:47:18.62 (57.788506)
Discovery date: 2023-01-16 02:19:07.968 (JD=2459960.59662)

Potential host galaxy: SDSS J105523.76+574718.9
Host redshift: 3.164

Remarks: Decline of ~0.38 in a known high z Quasar.

Photometry

Discovery (first detection):
Discovery date: 2023-01-16 02:19:07.968
Flux: 21.21 ABMag
Filter: g-Sloan
Instrument: Other
Telescope: Other

Last non-detection:
Last non-detection date: 2023-01-05 04:12:04
Limiting flux: 21.5 ABMag
Filter: g-Sloan
Instrument: Other
Telescope: Other


Details of the new object can be viewed here: https://www.wis-tns.org/object/2023sp