Discovery certificate for object 2018kjr
TNS Astronomical Transient Report No. 26897 [ 2018TNSTR1963....1D ]

Date Received (UTC): 2018-12-22 00:43:59
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 2018kjr
Discoverer internal name: Gaia18dxj
Coordinates (J2000): RA = 13:19:05.450 (199.772708) DEC = -31:22:33.60 (-31.376)
Discovery date: 2018-12-20 18:28:48 (JD=2458473.27)


Remarks: blue Gaia source declines by 1 mag over 2 yr then brightens by 1.5 mag over 2 yr, candidate QSO

Photometry

Discovery (first detection):
Discovery date: 2018-12-20 18:28:48
Flux: 18.33 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-01-29 15:12:57
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/2018kjr