Discovery certificate for object 2018hdn
TNS Astronomical Transient Report No. 23380 [ 2018TNSTR1526....1S ]

Date Received (UTC): 2018-10-08 04:22:42
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

K. Z. Stanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018hdn
Discoverer internal name: ASASSN-18xe
Coordinates (J2000): RA = 21:01:34.358 (315.39316) DEC = -09:26:07.87 (-9.43552)
Discovery date: 2018-10-07 20:38:24 (JD=2458399.36)


Remarks: In several epochs, uncatalogued host galaxy seen resolved in PS1 images

Photometry

Discovery (first detection):
Discovery date: 2018-10-07 20:38:24
Flux: 17.5 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2018-10-01 06:57:36
Limiting flux: 17.9 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018hdn