Sponsored by IAU's Commission 16: Physical Study of Planets and Satellites, Commission 20: Positions and Motions of Minor Planets, Comets, and Satelli...
Sponsored by IAU's Commission 16: Physical Study of Planets and Satellites, Commission 20: Positions and Motions of Minor Planets, Comets, and Satellites, and Commission 22: Meteors and Interplanetary Dust.