Discovery certificate for object 2019bby
TNS Astronomical Transient Report No. 30145 [ 2019TNSTR.275....1D ]

Date Received (UTC): 2019-02-25 13:34:48
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 2019bby
Discoverer internal name: Gaia19are
Coordinates (J2000): RA = 09:18:11.310 (139.547125) DEC = -59:26:43.26 (-59.44535)
Discovery date: 2019-02-19 11:06:43 (JD=2458533.9629977)


Remarks: 0.5 mag rise on variable blue source

Photometry

Discovery (first detection):
Discovery date: 2019-02-19 11:06:43
Flux: 16.36 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-12-11 06:17:16
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/2019bby