Discovery certificate for object 2017jyd
TNS Astronomical Transient Report No. 16213 [ 2018TNSTR...5....1D ]

Date Received (UTC): 2018-01-03 13:52:07
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 2017jyd
Discoverer internal name: Gaia18aay
Coordinates (J2000): RA = 22:58:05.960 (344.524833) DEC = -27:58:21.29 (-27.972581)
Discovery date: 2017-12-29 07:24:57 (JD=2458116.8089931)


Remarks: long term brightening (~1mag) in Seyfert 1 galaxy ICRF J225805.9-275821

Photometry

Discovery (first detection):
Discovery date: 2017-12-29 07:24:57
Flux: 16.2 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-10-14 01:00:28
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/2017jyd