Discovery certificate for object 2017aca
TNS Astronomical Transient Report No. 8511 [ 2017TNSTR.146....1D ]

Date Received (UTC): 2017-02-03 21:22:57
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 2017aca
Discoverer internal name: Gaia17ahb
Coordinates (J2000): RA = 17:46:29.330 (266.622208) DEC = -05:20:45.85 (-5.346069)
Discovery date: 2017-01-28 07:26:24 (JD=2457781.81)


Remarks: declining hostless transient (16 arcsec from galaxy 2MASX J17462972-0521009)

Photometry

Discovery (first detection):
Discovery date: 2017-01-28 07:26:24
Flux: 17.63 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2016-11-05 06:38:52
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/2017aca