Discovery certificate for object 2018hbk
TNS Astronomical Transient Report No. 23315 [ 2018TNSTR1497....1D ]

Date Received (UTC): 2018-10-03 14:15:11
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 2018hbk
Discoverer internal name: Gaia18cwc
Coordinates (J2000): RA = 18:56:20.210 (284.084208) DEC = -57:08:41.14 (-57.144761)
Discovery date: 2018-10-01 20:08:09 (JD=2458393.3389931)


Remarks: apparently hostless blue transient

Photometry

Discovery (first detection):
Discovery date: 2018-10-01 20:08:09
Flux: 17.45 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-08-26 08:38:24
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/2018hbk