Discovery certificate for object 2018jsc
TNS Astronomical Transient Report No. 26183 [ 2018TNSTR1914....1S ]

Date Received (UTC): 2018-12-13 02:12:51
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

K. Z. Stanek, C. S. Kochanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018jsc
Discoverer internal name: ASASSN-18abl
Coordinates (J2000): RA = 03:00:54.953 (45.22897) DEC = +18:02:28.93 (18.04137)
Discovery date: 2018-12-12 22:04:48 (JD=2458465.42)


Remarks: Large (3+mag), rapid outburst from a Galactic source that has never varied before

Photometry

Discovery (first detection):
Discovery date: 2018-12-12 22:04:48
Flux: 12 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2018-12-11 05:45:36
Limiting flux: 17 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt


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