Discovery certificate for object 2018cbu
TNS Astronomical Transient Report No. 18969 [ 2018TNSTR.723....1W ]

Date Received (UTC): 2018-05-30 01:49:25
Sender: Wenxiong Li
Source Group: TNTS

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

IAU Designation: AT 2018cbu
Coordinates (J2000): RA = 16:05:22.760 (241.344833) DEC = +16:11:57.40 (16.199278)
Discovery date: 2018-05-25 12:00:00 (JD=2458264)

Potential host galaxy: CGCG 108-117
Host redshift: 0.033

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 1" east and 3" north of the center of CGCG 108-117

Photometry

Discovery (first detection):
Discovery date: 2018-05-25 12:00:00
Flux: 18.2 VegaMag
Filter: Clear-
Instrument: BATC
Telescope: 0.6m Beijing Astronomical Observatory Telescope

Last non-detection:
Archival info: DSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018cbu