Discovery certificate for object 2017foy

TNS Astronomical Transient Report No. 12697 [ 2017TNSTR.786....1S ]

Date Received (UTC): 2017-07-21 21:03:16
Sender: Prof. Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

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

IAU Designation: AT 2017foy
Discoverer internal name: ASASSN-17jl
Coordinates (J2000): RA = 20:15:25.378 (303.85574) DEC = -37:30:43.16 (-37.51199)
Discovery date: 2017-07-21 06:14:24.000 (JD=2457955.76)

Potential host galaxy: ESO 340- G 007
Host redshift: 0.020347

Remarks: Nuclear transient, so could also be a TDE, in several epochs; this galaxy hosted Type II SN SN 2004fb

Photometry

Discovery (first detection):
Discovery date: 2017-07-21 06:14:24.000
Flux: 16.8 VegaMag
Filter: V-Johnson
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2017-07-14 02:24:00
Limiting flux: 17.2 VegaMag
Filter: V-Johnson
Instrument: Cassius
Telescope: ASASSN-Cassius


Details of the new object can be viewed here: https://www.wis-tns.org/object/2017foy