Discovery certificate for object 2017egw
TNS Astronomical Transient Report No. 11691 [ 2017TNSTR.595....1X ]

Date Received (UTC): 2017-05-25 12:15:53
Sender: Wenxiong Li
Source Group: TNTS

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

IAU Designation: AT 2017egw
Coordinates (J2000): RA = 13:08:22.350 (197.093125) DEC = +31:13:52.60 (31.231278)
Discovery date: 2017-05-24 14:24:00 (JD=2457898.1)

Potential host galaxy: 2MASX J13082248+3113519
Host redshift: 0.106731

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 2" west and 1" north of the center of 2MASX J13082248+3113519

Photometry

Discovery (first detection):
Discovery date: 2017-05-24 14:24:00
Flux: 19.3 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/2017egw