Discovery certificate for object 2019bsb
TNS Astronomical Transient Report No. 30720 [ 2019TNSTR.373....1T ]

Date Received (UTC): 2019-03-13 07:17:42
Sender: Mr. Hanjie Tan
Source Group: TNTS

Hanjie Tan(NCU), Wenxiong Li(THU), Rongxin Wang(THU),Tianmeng Zhang (NAOC), Zhijian Xu, Hao Song(THU), Xiaofeng Wang(THU), Jun Mo(THU),Xu Zhou(NAOC) on behalf of the TNTS report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019bsb
Coordinates (J2000): RA = 13:00:48.890 (195.203708) DEC = +28:05:26.40 (28.090667)
Discovery date: 2019-03-12 16:26:20 (JD=2458555.1849537)

Potential host galaxy: IC 4045
Host redshift: 0.023149

Remarks: This possible supernova was discovered by the 0.6 m Schmidt telescope at Xinglong Observatory during the Tsinghua-NAOC Transient Survey (TNTS). The transient is located 3.6" west and 0.4" south of the center of IC 4045.

Photometry

Discovery (first detection):
Discovery date: 2019-03-12 16:26:20
Flux: 18.79 VegaMag
Filter: Clear-
Instrument: BATC
Telescope: 0.6m Beijing Astronomical Observatory Telescope

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019bsb