Discovery certificate for object 2017grw
TNS Astronomical Transient Report No. 13609 [ 2017TNSTR.995....1S ]

Date Received (UTC): 2017-09-12 01:51:20
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

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

IAU Designation: SN 2017grw
Discoverer internal name: ASASSN-17lz
Coordinates (J2000): RA = 15:57:29.698 (239.37374) DEC = +15:52:21.94 (15.87276)
Discovery date: 2017-09-11 23:31:12 (JD=2458008.48)

Potential host galaxy: NGC 6018
Host redshift: 0.017405

Remarks: In two epochs, near the core, so could also be a TDE

Photometry

Discovery (first detection):
Discovery date: 2017-09-11 23:31:12
Flux: 16.5 VegaMag
Filter: V-Johnson
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2017-08-31 00:00:00
Limiting flux: 17.3 VegaMag
Filter: V-Johnson
Instrument: Cassius
Telescope: ASASSN-Cassius


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2017grw