Comet 242P/Spahr = P/1998 U4 = P/2010 P3 observation list

Type Comet Obs date Extinction Meth Comet vis Mag Conditions Ref cat Inst T App Inst F Inst P Coma vis Coma Coma notes DC Tail vis Tail Tail unit PA User Association Country Location Comment Sky quality Sky quality method Reference stars Pk