Discovery certificate for object 2018yi
TNS Astronomical Transient Report No. 17056 [ 2018TNSTR.267....1S ]

Date Received (UTC): 2018-02-25 16:12:07
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: SN 2018yi
Discoverer internal name: ASASSN-18du
Coordinates (J2000): RA = 13:38:20.388 (204.58495) DEC = -06:15:10.15 (-6.25282)
Discovery date: 2018-02-17 05:31:12 (JD=2458166.73)

Potential host galaxy: LCRS B133543.8-060003
Host redshift: 0.054971

Remarks: In several epochs, on the rise

Photometry

Discovery (first detection):
Discovery date: 2018-02-17 05:31:12
Flux: 18.1 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski

Last non-detection:
Last non-detection date: 2018-02-10 11:02:24
Limiting flux: 18.9 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt


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