Discovery certificate for object 2019acb
TNS Astronomical Transient Report No. 29214 [ 2019TNSTR.139....1D ]

Date Received (UTC): 2019-01-25 14:03:37
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 2019acb
Discoverer internal name: Gaia19ahl
Coordinates (J2000): RA = 11:54:06.120 (178.5255) DEC = +18:57:23.72 (18.956589)
Discovery date: 2019-01-10 15:53:16 (JD=2458494.1619907)


Remarks: brightening of blazar candidate SDSS J115406.11+185723.6 (SDSS spectrum)

Photometry

Discovery (first detection):
Discovery date: 2019-01-10 15:53:16
Flux: 18.99 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-07-28 03:57:36
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/2019acb