Discovery certificate for object 2018hyd
TNS Astronomical Transient Report No. 24096 [ 2018TNSTR1715....1D ]

Date Received (UTC): 2018-11-06 15:33:45
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 2018hyd
Discoverer internal name: Gaia18dhi
Coordinates (J2000): RA = 13:17:26.350 (199.359792) DEC = -62:40:36.70 (-62.676861)
Discovery date: 2018-11-05 00:33:07 (JD=2458427.5229977)


Remarks: slow 4months >1mag decline in a red star in the galactic plane

Photometry

Discovery (first detection):
Discovery date: 2018-11-05 00:33:07
Flux: 20.18 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-06-17 21:07:12
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/2018hyd