Discovery certificate for object 2017egx
TNS Astronomical Transient Report No. 11692 [ 2017TNSTR.594....1L ]

Date Received (UTC): 2017-05-25 13:25:56
Sender: Wenxiong Li
Source Group: TNTS

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

IAU Designation: AT 2017egx
Coordinates (J2000): RA = 12:57:54.040 (194.475167) DEC = +28:29:57.60 (28.499333)
Discovery date: 2017-05-24 14:09:36 (JD=2457898.09)

Potential host galaxy: 2MASX J12575392+2829594
Host redshift: 0.024

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" east and 2" south of the center of 2MASX J12575392+2829594

Photometry

Discovery (first detection):
Discovery date: 2017-05-24 14:09:36
Flux: 18.5 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/2017egx