Discovery certificate for object 2018btw
TNS Astronomical Transient Report No. 18680 [ 2018TNSTR.670....1D ]

Date Received (UTC): 2018-05-19 15:20:05
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 2018btw
Discoverer internal name: Gaia18bfx
Coordinates (J2000): RA = 06:44:46.570 (101.194042) DEC = +56:45:30.71 (56.758531)
Discovery date: 2018-05-15 10:58:04 (JD=2458253.9569907)


Remarks: Gaia source brightens by 1.3 mag over 6 weeks

Photometry

Discovery (first detection):
Discovery date: 2018-05-15 10:58:04
Flux: 18.64 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-09-20 09:59:02
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/2018btw