Discovery certificate for object 2017gvi
TNS Astronomical Transient Report No. 13706 [ 2017TNSTR1019....1S ]

Date Received (UTC): 2017-09-20 18:49:15
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 2017gvi
Discoverer internal name: ASASSN-17mm
Coordinates (J2000): RA = 17:56:57.115 (269.23798) DEC = +07:26:08.99 (7.43583)
Discovery date: 2017-09-20 06:28:48 (JD=2458016.77)


Remarks: Possible faint SDSS galaxy nearby, in several epochs, on the rise

Photometry

Discovery (first detection):
Discovery date: 2017-09-20 06:28:48
Flux: 17 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus

Last non-detection:
Last non-detection date: 2017-09-15 06:28:48
Limiting flux: 17.8 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/2017gvi