Discovery certificate for object 2018hdu
TNS Astronomical Transient Report No. 23389 [ 2018TNSTR1529....1D ]

Date Received (UTC): 2018-10-08 16:20:50
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 2018hdu
Discoverer internal name: Gaia18cxe
Coordinates (J2000): RA = 22:37:32.090 (339.383708) DEC = -50:58:05.48 (-50.968189)
Discovery date: 2018-10-05 19:48:00 (JD=2458397.325)


Remarks: apparently hostless blue transient aka ASASSN-18wb

Photometry

Discovery (first detection):
Discovery date: 2018-10-05 19:48:00
Flux: 16.47 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-06-05 21:44:38
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/2018hdu