Discovery certificate for object 2019ejn
TNS Astronomical Transient Report No. 34026 [ 2019TNSTR.689....1F ]

Date Received (UTC): 2019-05-02 18:29:08
Sender: Dr. Weikang Zheng
Source Group: LOSS

WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019ejn
Discoverer internal name: kait-19Q
Coordinates (J2000): RA = 12:28:09.121 (187.0380028) DEC = +44:06:40.69 (44.1113014)
Discovery date: 2019-04-30 08:23:59 (JD=2458603.8499884)

Potential host galaxy: NGC4449
Host redshift: 0.00069

Remarks: The object was detected multiple times as early as Jun. 17, 2017, and again on Feb. 09, 2018, May 04 and 17, 2018, all at similar mag of clear ~18.8 mag. This is likely an LBV.

Photometry

Discovery (first detection):
Discovery date: 2019-04-30 08:23:59
Flux: 18.8 VegaMag
Filter: Clear-
Instrument: KAITCam
Telescope: Katzman Automatic Imaging Telescope

Last non-detection:
Archival info: DSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019ejn