Discovery certificate for object 2017gre
TNS Astronomical Transient Report No. 13591 [ 2017TNSTR.990....1D ]

Date Received (UTC): 2017-09-11 09:17:48
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 2017gre
Discoverer internal name: Gaia17chf
Coordinates (J2000): RA = 21:43:21.810 (325.840875) DEC = +73:41:12.80 (73.686889)
Discovery date: 2017-09-09 05:26:52 (JD=2458005.7269907)


Remarks: Outburst of g=22 star SDSS J214321.83+734112.9. Prev outburst observed as ASASSN-14le. Likely CV.

Photometry

Discovery (first detection):
Discovery date: 2017-09-09 05:26:52
Flux: 17.19 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-07-10 10:16:19
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/2017gre