Events - Scientific Events on April 15
1985 : #4532 Copland, #5100 Pasachoff, #6371 Heinlein & #7228
1988 : A C Gilmore & P M Kilmartin discover asteroid #5207
1959 : A Konig, G Jakisch & W Wenzel discover asteroid #3815 Konig
1912 : A Massinger discovers asteroids #731 Sorga & #732 Tjilaki
1982 : A Mrkos discovers asteroid #3257
1997 : Baseball honors Jackie Robinson by retiring #42 for all teams
1991 : C S & E M Shoemaker & D H Levy discover asteroid #6401 Roentgen
1993 : C S Shoemaker & E M Shoemaker discover asteroid #5632 Ingelehmann
1985 : C S Shoemaker discovers asteroid #4569 Baerbel
1975 : C Torres discovers asteroid #2784 Domeyko
1980 : E Bowell discovers asteroid #3041 Webb
1985 : E Bowell discovers asteroids #3527 McCord, #3663, #4175 Billbaum,
1993 : H E Holt discovers asteroid #7190 & #7883
1888 : J Palisa discovers asteroid #275 Sapientia
1994 : K Endate & K Watanabe discover asteroid #7530
1857 : N R Pogson discovers asteroid #43 Ariadne