影像來源/ SOURCE: "THE SIZE DISTRIBUTIONS OF ASTEROID FAMILIES IN THE SDSS MOVING OBJECT CATALOG 4," BY A. H. PARKER, Z. IVEZIC, M. JURIC, R. H. LUPTON, M. D. SEKORA AND A. F. KOWALSKI, IN /CARUS. VOL. 198. NO. 1: NOVEMBER 2008 : GRAPHIC BY JAKE VANDERPI
