Discovery certificate for object 2018byw
TNS Astronomical Transient Report No. 18852 [ 2018TNSTR.706....1S ]

Date Received (UTC): 2018-05-25 17:58:01
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

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

IAU Designation: SN 2018byw
Discoverer internal name: ASASSN-18le
Coordinates (J2000): RA = 21:38:16.819 (324.57008) DEC = -27:33:28.69 (-27.55797)
Discovery date: 2018-05-24 06:14:24 (JD=2458262.76)

Potential host galaxy: 2MASX J21381685-2733285
Host redshift: 0.029991

Remarks: Nuclear transient, so could also be a TDE

Photometry

Discovery (first detection):
Discovery date: 2018-05-24 06:14:24
Flux: 17 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski

Last non-detection:
Last non-detection date: 2018-05-19 01:26:24
Limiting flux: 18.2 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


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