Discovery certificate for object 2018hst
TNS Astronomical Transient Report No. 23896 [ 2018TNSTR1682....1D ]

Date Received (UTC): 2018-11-03 12:05:31
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 2018hst
Discoverer internal name: Gaia18dgf
Coordinates (J2000): RA = 22:49:50.910 (342.462125) DEC = -46:36:08.71 (-46.602419)
Discovery date: 2018-11-01 13:43:40.000 (JD=2458424.0719907)


Remarks: blue transient, near very faint DSS source

Photometry

Discovery (first detection):
Discovery date: 2018-11-01 13:43:40.000
Flux: 17.14 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-10-07 09:34:33
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/2018hst