Discovery certificate for object 2017dff
TNS Astronomical Transient Report No. 10889 [ 2017TNSTR.454....1D ]

Date Received (UTC): 2017-04-20 08:30:23
Sender: Gaia (Gaia_Bot1)
Reporting Group: GaiaAlerts     Discovery Data Source: GaiaAlerts

A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: SN 2017dff
Discoverer internal name: Gaia17baz
Coordinates (J2000): RA = 20:38:57.200 (309.738333) DEC = -26:49:54.16 (-26.831711)
Discovery date: 2017-04-17 12:41:45.000 (JD=2457861.0289931)


Remarks: blue transient near UV source GALEXASC J203857.18-264957.9

Photometry

Discovery (first detection):
Discovery date: 2017-04-17 12:41:45.000
Flux: 18.61 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-03-25 20:28:19
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


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