Discovery certificate for object 2017daf
TNS Astronomical Transient Report No. 10724 [ 2017TNSTR.435....1S ]

Date Received (UTC): 2017-04-15 16:25:45
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 2017daf
Discoverer internal name: ASASSN-17ez
Coordinates (J2000): RA = 14:34:52.702 (218.71959) DEC = +40:44:52.87 (40.74802)
Discovery date: 2017-04-15 12:28:48 (JD=2457859.02)

Potential host galaxy: UGC 09386
Host redshift: 0.019001

Remarks: In several epochs, on the rise, nuclear source, so might also be a TDE

Photometry

Discovery (first detection):
Discovery date: 2017-04-15 12:28:48
Flux: 17.5 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus

Last non-detection:
Last non-detection date: 2017-03-31 11:31:12
Limiting flux: 17.6 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus


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