Discovery certificate for object 2021bha
TNS Astronomical Transient Report No. 97886 [ 2021TNSTR.267....1T ]

Date Received (UTC): 2021-01-28 14:04:33
Sender: Mr. Mi Zhang
Reporting Group: XOSS     Discovery Data Source: XOSS

Hanjie Tan, Guoyou Sun, Mi Zhang, Xing Gao (Xingming Observatory) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2021bha
Discoverer internal name: XM43HT
Coordinates (J2000): RA = 04:34:00.440 (68.501833) DEC = +71:24:24.10 (71.406694)
Discovery date: 2021-01-27 16:42:52.000 (JD=2459242.1964352)


Remarks: Known variable star (UG) in VSX, ~0.9 mag rise in PS1 source. The transient was discovered on several 120-s survey images (limiting mag about 18.0) taken by Xing Gao using PAT at Xingming Observatory #3 (N88). Images can be found at: http://xjltp.china-vo.org/xm43ht.html

Photometry

Discovery (first detection):
Discovery date: 2021-01-27 16:42:52.000
Flux: 17.74 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: The transient was discovered on several 120-s survey images (limiting mag about 18.0) taken by Xing Gao using PAT at Xingming Observatory #3 (N88). Images can be found at: http://xjltp.china-vo.org/xm43ht.html

Last non-detection:
Archival info: Other
Remarks: The transient was discovered on several 120-s survey images (limiting mag about 18.0) taken by Xing Gao using PAT at Xingming Observatory #3 (N88). Images can be found at: http://xjltp.china-vo.org/xm43ht.html

Details of the new object can be viewed here: https://www.wis-tns.org/object/2021bha