Discovery certificate for object 2018chk
TNS Astronomical Transient Report No. 19190 [ 2018TNSTR.780....1D ]

Date Received (UTC): 2018-06-08 09:50:52
Sender: Gaia (Gaia_Bot1)
Reporting Group: GaiaAlerts     Discovery Data Source: 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 2018chk
Discoverer internal name: Gaia18bla
Coordinates (J2000): RA = 10:15:04.140 (153.76725) DEC = +49:26:00.71 (49.433531)
Discovery date: 2018-06-04 16:52:19.000 (JD=2458274.2029977)


Remarks: Bl Lac 7C 101155.29+494057.00 brightens by 0.4 mag over months

Photometry

Discovery (first detection):
Discovery date: 2018-06-04 16:52:19.000
Flux: 15.32 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-04-10 19:07:40
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


Details of the new object can be viewed here: https://www.wis-tns.org/object/2018chk