Discovery certificate for object 2018cby
TNS Astronomical Transient Report No. 18974 [ 2018TNSTR.728....1D ]

Date Received (UTC): 2018-05-31 11:25:13
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: AT 2018cby
Discoverer internal name: Gaia18bjc
Coordinates (J2000): RA = 23:43:15.620 (355.815083) DEC = +51:54:05.22 (51.90145)
Discovery date: 2018-05-27 18:04:19 (JD=2458266.2529977)


Remarks: candidate SN near galaxy 2MASX J23431577+5154153 GS-TEC predicts SN Ia

Photometry

Discovery (first detection):
Discovery date: 2018-05-27 18:04:19
Flux: 17.87 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-04-02 20:03:50
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/2018cby