Discovery certificate for object 2019hsn
TNS Astronomical Transient Report No. 38107 [ 2019TNSTR1031....1D ]

Date Received (UTC): 2019-06-18 08:41:32
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 2019hsn
Discoverer internal name: Gaia19cki
Coordinates (J2000): RA = 12:39:57.310 (189.988792) DEC = -20:23:04.81 (-20.384669)
Discovery date: 2019-06-16 10:52:19 (JD=2458650.9529977)


Remarks: Gaia source brightens by 0.5 mag over 3.5 years, coincident with GALEXASC J123957.35-202304.4

Photometry

Discovery (first detection):
Discovery date: 2019-06-16 10:52:19
Flux: 18.34 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2016-11-28 14:52:48
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/2019hsn