Discovery certificate for object 2019ljs
TNS Astronomical Transient Report No. 41851 [ 2019TNSTR1283....1H ]

Date Received (UTC): 2019-07-17 11:08:37
Sender: Gaia (Gaia_Bot1)
Source Group: GaiaAlerts

S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), D. Eappachen, Z. Kostrzewa-Rutkowska (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019ljs
Discoverer internal name: Gaia19das
Coordinates (J2000): RA = 02:55:49.510 (43.956292) DEC = +05:33:55.08 (5.5653)
Discovery date: 2019-07-15 20:08:09 (JD=2458680.3389931)


Remarks: long-term brightening in known BLLac 87GB 025311.2+052210

Photometry

Discovery (first detection):
Discovery date: 2019-07-15 20:08:09
Flux: 18.62 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-12-20 21:04:19
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/2019ljs