49 (number)
49 is the natural number following 48 and preceding 50.
In mathematics
Forty-nine is a square number, a centered octagonal number, and a Somer pseudoprime based on 8.
In scienceThe atomic number of indium In astronomy, - Messier object M49, a magnitude 10.0 galaxy in the constellation Virgo.
- The New General Catalogue object NGC 49, a spiral galaxy in the constellation Cetus.
- The Saros number of the solar eclipse series which began on -1248 February 22 and ended on 32 March 29. The duration of Saros series 49 was 1280.1 years, and it contained 72 solar eclipses.
- The Saros number of the lunar eclipse series which began on -1217 June 21 and ended on 81 August 8. The duration of Saros series 49 was 1298.1 years, and it contained 73 lunar eclipses.
In other fields Forty-nine is also:
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