discovery: 285P/2003 U2 appeared: 285P/2013 K2 coming: 285P Jan 2023 LINEAR discovered an 18th mag comet on October 19.09 which was confirmed to be cometary by other observers. Pre-discovery images back to September 19 were also found. It was at perihelion in early December 2003 at 1.7 au and has a period of 9.6 years. F. Shelly, Lincoln Laboratory, Massachusetts Institute of Technology, reported the discovery of a comet with a diffuse coma and a very wide, fan-shaped tail in p.a. 85 deg on LINEAR images on October 19.09. Following posting on the NEO Confirmation Page, other CCD observers also commented on the cometary appearance on October 21.1-21.2, including J. Young at Table Mountain (0.6-m reflector; 5" coma without central condensation and with a fan-shaped tail about 25" long spanning p.a. 70-95 deg) and R. Fredrick and T. Medlock at Louisburg, KS (0.75-m reflector; 30" tail in p.a. 80 deg). [IAUC 8229, 2003 October 21] Hidetaka Sato recovered 2003 U2 with the r...