Discovery certificate for object 2017gyy
TNS Astronomical Transient Report No. 13830 [ 2017TNSTR1049....1D ]

Date Received (UTC): 2017-09-30 09:08:45
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 2017gyy
Discoverer internal name: Gaia17ckh
Coordinates (J2000): RA = 12:40:14.840 (190.061833) DEC = +46:51:05.87 (46.851631)
Discovery date: 2017-09-23 09:05:45 (JD=2458019.8789931)


Remarks: candidate CV, bright blue declining transient on faint blue SDSS star

Photometry

Discovery (first detection):
Discovery date: 2017-09-23 09:05:45
Flux: 15.49 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-07-27 11:05:16
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/2017gyy