Discovery certificate for object 2017ayg
TNS Astronomical Transient Report No. 9147 [ 2017TNSTR.214....1D ]

Date Received (UTC): 2017-02-20 15:50:39
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 2017ayg
Discoverer internal name: Gaia17akq
Coordinates (J2000): RA = 17:22:05.320 (260.522167) DEC = -42:27:30.02 (-42.458339)
Discovery date: 2017-02-12 19:49:26 (JD=2457797.3259954)


Remarks: nearly 2 mag smooth 200 d long drop in brightness of a source towards the galactic plane

Photometry

Discovery (first detection):
Discovery date: 2017-02-12 19:49:26
Flux: 19.42 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-01-30 00:20:09
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/2017ayg