Discovery certificate for object 2018bss
TNS Astronomical Transient Report No. 18647 [ 2018TNSTR.657....1X ]

Date Received (UTC): 2018-05-17 17:22:11
Sender: Wenxiong Li
Source Group: PTSS

Zhijian Xu,Wenxiong Li(THU), Bin Li (PMO),Zhitong Li,Xiaofeng Wang(THU),Hanjie Tan(CCU),Haibin Zhao(PMO),Lifan Wang (PMO/TAMU),Jujia Zhang(YNAO) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018bss
Discoverer internal name: PTSS-18eqj
Coordinates (J2000): RA = 10:52:39.940 (163.166417) DEC = +19:56:44.79 (19.945775)
Discovery date: 2018-05-17 12:38:46 (JD=2458256.0269213)

Potential host galaxy: SDSS J105240.65+195641.2
Host redshift: 0.03

Remarks: This supernova candidate was discovered by the 1.04m Schmidt telescope at Xuyi Observatory during the PMO-Tsinghua Transient Survey(PTSS). The transient is located 11'' west and 4” norh of the centre of SDSS J105240.65+195641.2.The link of the discovery information at: http://www.cneost.org/ptss2/findname.php?ptssname=PTSS-18eqj

Photometry

Discovery (first detection):
Discovery date: 2018-05-17 12:38:46
Flux: 18.76 VegaMag
Filter: r-Sloan
Instrument: STA1600
Telescope: Chinese Near Earth Object Survey Telescope

Last non-detection:
Archival info: SDSS

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