Discovery certificate for object 2018hmc
TNS Astronomical Transient Report No. 23666 [ 2018TNSTR1603....1D ]

Date Received (UTC): 2018-10-19 10:27:12
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 2018hmc
Discoverer internal name: Gaia18dbw
Coordinates (J2000): RA = 18:45:24.900 (281.35375) DEC = +31:56:54.92 (31.948589)
Discovery date: 2018-10-18 15:20:09 (JD=2458410.1389931)


Remarks: Gaia source brightens by 4 mags and becomes very blue, candidate CV

Photometry

Discovery (first detection):
Discovery date: 2018-10-18 15:20:09
Flux: 15.83 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-09-13 04:03:21
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/2018hmc