Discovery certificate for object 2018cdx
TNS Astronomical Transient Report No. 19058 [ 2018TNSTR.748....1W ]

Date Received (UTC): 2018-06-04 05:34:51
Sender: Wenxiong Li
Source Group: TNTS

Rongxin Wang(THU), Wenxiong Li(THU), Tianmeng Zhang (NAOC), Zhijian Xu, Hanjie Tan(CCU),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 2018cdx
Coordinates (J2000): RA = 12:54:16.250 (193.567708) DEC = +27:18:14.00 (27.303889)
Discovery date: 2018-06-02 12:00:00 (JD=2458272)

Potential host galaxy: NGC 4788
Host redshift: 0.02

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 4" east and 1" north of the center of NGC 4788.

Photometry

Discovery (first detection):
Discovery date: 2018-06-02 12:00:00
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/2018cdx