Comet P/2018 L4 was discovered  by R.Wainscoat and found on images taken on June 8.5 UT with the 1.8-m Pan-STARRS1 Ritchey-Chretien telescope at Haleakala .
This object was also observed by myself with my 0.4-m f/3.8 AG16 telescope, while it was mentioned on the PCCP of the minor planet center on 20 june 2018. I took 20 x 120sec. Exposures and found after stacking this object as well. I have send the astrometric data and comment of the cometary appearance to the minor planetcenter on 21 june 2018.  Later on 22 june 2018, this object was assigned as P/2018 L4 (PANSTARRS) with CBET 4527: 20180622 : COMET P/2018 L4 (PANSTARRS) issued on 22 june 2018