82 (number) - Definition and Overview

82 is the natural number following 81 and preceding 83.

In mathematics

Eighty-two is a companion Pell number

In science

• The atomic number of lead
• In physics, the sixth Magic Number

In astronomy,

Messier object M82, a magnitude 9.5 irregular galaxy in the constellation Ursa Major

The New General Catalogue object (http://www.ngcic.org/) NGC 82, a single star in the constellation Andromeda

The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html) of the solar eclipse series which began on -293 April 22 and ended on 969 May 19. The duration of Saros series 82 was 1262.1 years, and it contained 71 solar eclipses.

The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/LEsaros/LEsaros1-175.html) of the lunar eclipse series which began on -226 September 10 and ended on 1289 March 8. The duration of Saros series 82 was 1514.5 years, and it contained 85 lunar eclipses.

In other fields

Eighty-two is also:

• the model number of: Mark 82 bomb, a nonguided general purpose bomb
• the number of the French department Tarn-et-Garonne
• the code for international direct dial phone calls to South Korea
• The ISBN Group Identifier for books published in Norway
  

  

  Mark 82 bomb
• The year AD 82, 82 BC, or 1982.