1. 
   Baade, Walter
   (from the article `Icarus`) ...has a more eccentric orbit and also approaches nearer the Sun (within 30 million km [19 million miles]) than does any other known body in the ... in astronomy, two broad classes of stars and stellar assemblages defined in the early 1950s by the German-born astronomer W...
   Found op http://www.britannica.com/eb/a-z/b/1
   
   
2. 
   Baade, Walter
   Baade, Walter (väl'tur bä'du) , 1893–1960, German-born American astronomer. From 1919 to 1931 he was on the staff of the Hamburg observatory; from 1931 to 1958, at the Mt. Wilson observatory. Baade studied the Andromeda Galaxy, M31, and other spiral galaxies and presented evi...
   Found op http://www.infoplease.com/ce6/people/A0805579.html
   
   

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