Discovery certificate for object 2018def
TNS Astronomical Transient Report No. 20024 [ 2018TNSTR.942....1D ]

Date Received (UTC): 2018-07-07 17:13:14
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: AT 2018def
Discoverer internal name: Gaia18bsi
Coordinates (J2000): RA = 22:49:51.880 (342.466167) DEC = +12:27:31.25 (12.458681)
Discovery date: 2018-05-30 18:50:24.000 (JD=2458269.285)


Remarks: candidate SN near galaxy 2MASX J22495179+1227326

Photometry

Discovery (first detection):
Discovery date: 2018-05-30 18:50:24.000
Flux: 18.93 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-01-21 02:12:28
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


Details of the new object can be viewed here: https://www.wis-tns.org/object/2018def