Discovery certificate for object 2018fzl
TNS Astronomical Transient Report No. 22393 [ 2018TNSTR1334....1C ]

Date Received (UTC): 2018-09-09 01:13:08
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

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

IAU Designation: AT 2018fzl
Discoverer internal name: ASASSN-18um
Coordinates (J2000): RA = 22:48:11.928 (342.0497) DEC = +16:14:11.08 (16.23641)
Discovery date: 2018-09-08 04:33:36 (JD=2458369.69)


Remarks: Bright transient, no match in SDSS or PS1, extremely rapid rise, confirmed in follow-up imaging, might be a CV, but it would be extreme amplitude event

Photometry

Discovery (first detection):
Discovery date: 2018-09-08 04:33:36
Flux: 15 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski

Last non-detection:
Last non-detection date: 2018-09-07 02:38:24
Limiting flux: 18.2 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


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