Discovery certificate for object 2019csy
TNS Astronomical Transient Report No. 31921 [ 2019TNSTR.496....1L ]

Date Received (UTC): 2019-04-03 13:52:07
Sender: Mr. Hanjie Tan
Source Group: TNTS

Yuan Li (BHSF), Hanjie Tan(NCU), Wenxiong Li(THU), Tianmeng Zhang (NAOC), Zhijian Xu, 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 2019csy
Coordinates (J2000): RA = 12:19:56.890 (184.987042) DEC = +20:36:17.60 (20.604889)
Discovery date: 2019-03-29 16:01:11 (JD=2458572.1674884)

Potential host galaxy: SDSS J121956.85+203614.7

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 0.6" east and 2.6" north of the center of SDSS J121956.85+203614.7.

Photometry

Discovery (first detection):
Discovery date: 2019-03-29 16:01:11
Flux: 19.46 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/2019csy