SAO

From Wikipedia, the free encyclopedia

SAO is a three-letter abbreviation with multiple meanings, as described below:

• The Session-At-Once recording mode for optical discs.
• The Smithsonian Astrophysical Observatory of the Smithsonian Institution in Cambridge, Massachusetts
• The Smithsonian Astrophysical Observatory Star Catalog
• The Special Astrophysical Observatory of the Russian Academy of Sciences, the site of the BTA-6 Telescope, which for many years was the world's largest telescope
• The Sao are an historical people south of Lake Chad, see Kotoko kingdoms

Sao is also a type of biscuit produced by Arnott's.