Discovery certificate for object 2017hef
TNS Astronomical Transient Report No. 13978 [ 2017TNSTR1087....1D ]

Date Received (UTC): 2017-10-09 11:36:59
Sender: Gaia (Gaia_Bot1)
Source Group: 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 2017hef
Discoverer internal name: Gaia17cno
Coordinates (J2000): RA = 03:46:43.700 (56.682083) DEC = -46:37:19.34 (-46.622039)
Discovery date: 2017-10-06 07:39:21 (JD=2458032.8189931)


Remarks: hostless blue transient

Photometry

Discovery (first detection):
Discovery date: 2017-10-06 07:39:21
Flux: 18.02 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-09-07 19:42:14
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/2017hef