Discovery certificate for object 2017cal
TNS Astronomical Transient Report No. 9957 [ 2017TNSTR.283....1S ]

Date Received (UTC): 2017-03-08 18:28:59
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 2017cal
Discoverer internal name: ASASSN-17dh
Coordinates (J2000): RA = 17:14:24.278 (258.60116) DEC = +20:18:50.44 (20.31401)
Discovery date: 2017-03-07 12:43:12 (JD=2457820.03)

Potential host galaxy: NGC 6321
Host redshift: 0.020764

Remarks: In several epochs, could be in the core, so also a TDE candidate

Photometry

Discovery (first detection):
Discovery date: 2017-03-07 12:43:12
Flux: 15.8 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus

Last non-detection:
Last non-detection date: 2017-02-21 14:38:24
Limiting flux: 17.2 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/2017cal