Discovery certificate for object 2017mu
TNS Astronomical Transient Report No. 8052 [ 2017TNSTR..87....1X ]

Date Received (UTC): 2017-01-22 15:32:32
Sender: Wenxiong Li
Source Group: PTSS

Zhijian Xu, Wenxiong Li, Xiaofeng Wang (Tsinghua University), Bin Li, Haibin Zhao, Lifan Wang (PMO), Hanjie Tan (CCU), Jujia Zhang (YNAO), Zesheng Yang, Hao Song (Tsinghua University) report/s the discovery of a new astronomical transient.

IAU Designation: SN 2017mu
Discoverer internal name: PTSS-17dgm
Coordinates (J2000): RA = 09:30:36.580 (142.652417) DEC = +21:24:42.32 (21.411756)
Discovery date: 2017-01-21 18:24:25 (JD=2457775.266956)

Potential host galaxy: GALEXASC J093036.72+212437.4

Remarks: This possible supernova was discovered by the 1.04 m schmidt telescope at Xuyi Observatory during the PMO-Tsinghua Transient Survey (PTSS). The transient is located 2.1" west and 4.9" north of the center of GALEXASC J093036.72+212437.4. The link of the discovery information at: http://www.cneost.org/ptss/findname.php?ptssname=PTSS-17dgm

Photometry

Discovery (first detection):
Discovery date: 2017-01-21 18:24:25
Flux: 18.9 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/2017mu