You are here: Home USNO James M. Gilliss Library Historical Photos, Artwork, Objects Historical Collection Portraits George William Hill
The USNO websites aa.usno.navy.mil, ad.usno.navy.mil, aristarchus.usno.navy.mil, maia.usno.navy.mil, rorf.usno.navy.mil, and toshi.usno.navy.mil are undergoing modernization efforts. The expected completion of the work and return of service is estimated as 30 April 2020. Please submit a requirements form to the USNOPAO if the information you are seeking is not accessible via other means.
 

George William Hill

George William Hill (1838-1914) is considered one of the nineteenth century's best mathematicians. He worked with Simon Newcomb, and is known especially for his theory of the motions of Jupiter and Saturn, which yielded accurate ephemerides for those planets. He was a member of the Nautical Almanac Office from 1861-1892. Painting by Beverly Stautz
USNO Master Clock Time
Javascript must be Enabled