Discovery certificate for object 2017exd
TNS Astronomical Transient Report No. 12186 [ 2017TNSTR.686....1D ]

Date Received (UTC): 2017-06-23 16:39:41
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 2017exd
Discoverer internal name: Gaia17bpj
Coordinates (J2000): RA = 21:47:10.160 (326.792333) DEC = +09:29:46.68 (9.4963)
Discovery date: 2017-06-21 11:13:55 (JD=2457925.9679977)


Remarks: gaia source at location of QSO B2144+093 brightens by ~1mag, previous outburst seen in lightcurve

Photometry

Discovery (first detection):
Discovery date: 2017-06-21 11:13:55
Flux: 17.46 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2016-10-08 07:12:00
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/2017exd