Discovery certificate for object 2018gei
TNS Astronomical Transient Report No. 22552 [ 2018TNSTR1354....1D ]

Date Received (UTC): 2018-09-11 09:31:21
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 2018gei
Discoverer internal name: Gaia18coj
Coordinates (J2000): RA = 18:21:34.650 (275.394375) DEC = +02:03:06.98 (2.051939)
Discovery date: 2018-09-07 21:36:00 (JD=2458369.4)


Remarks: star brightens by more than 2 mag, probable CV, aka ASASSN-15kd

Photometry

Discovery (first detection):
Discovery date: 2018-09-07 21:36:00
Flux: 14.24 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-03-25 01:39:21
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/2018gei