From August 19 to 22 of 1989, Hudson and Steven Ostro observed asteroid 4769 Castalia from the Arecibo Observatory, producing the first direct image of an asteroid.
Walter Scott | Hudson River | Hudson's Bay Company | F. Scott Fitzgerald | Sir Walter Scott | Ridley Scott | Orson Scott Card | Tony Scott | Hudson Bay | Hudson | Winfield Scott | Robert Falcon Scott | Scott | Rock Hudson | Henry Hudson | Scott Brown | Ronnie Scott | Francis Scott Key | Scott McCloud | Scott Lobdell | John Scott, 1st Earl of Eldon | Hudson Valley | Winfield Scott Hancock | Randolph Scott | Peter Scott | Coretta Scott King | Seann William Scott | Scott Walker | Scott Bakula | George Gilbert Scott |
Important research in this field has been done by Brad Myers, Dan Olsen, Scott Hudson and James D. Foley.