Discovery certificate for object 2018hbm
TNS Astronomical Transient Report No. 23317 [ 2018TNSTR1497....1D ]

Date Received (UTC): 2018-10-03 14:16:45
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 2018hbm
Discoverer internal name: Gaia18cwe
Coordinates (J2000): RA = 15:56:44.220 (239.18425) DEC = -00:09:50.29 (-0.163969)
Discovery date: 2018-10-02 15:11:31 (JD=2458394.1329977)


Remarks: known CV V493 Ser brightens by >5 mags

Photometry

Discovery (first detection):
Discovery date: 2018-10-02 15:11:31
Flux: 12.88 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-03-18 15:50:24
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/2018hbm