103 (number)

103 is the natural number following 102 and preceding 104.

In mathematics

One hundred [and] three is the 27th prime number. The previous prime is 101, making them both twin primes.

103 is a strictly non-palindromic number.

In science

• The atomic number of lawrencium, an actinide.

In astronomy,

Messier object M103, a magnitude 7.0 open cluster in the constellation Cassiopeia

The New General Catalogue object NGC103, an open cluster in the constellation Cassiopeia

Asteroid 103 Hera

The Saros number of the solar eclipse series which began on 387 April 4 and ended on 1667 May 22. The duration of Saros series 103 was 1280.1 years, and it contained 72 solar eclipses.

The Saros number of the lunar eclipse series which began on 454 August 24 and ended on 1951 February 21. The duration of Saros series 103 was 1496.5 years, and it contained 84 lunar eclipses.

• The number of 'non-stellar objects' - galaxies, nebulae and star clusters - listed by Charles Messier in his catalogue in 1784. (Note: this was later extended to 110 objects)

In other fields

When "and" is required for the number name, 103 is the smallest number requiring 18 letters when spelled out in English.

One hundred three is also:

• The year AD 103 or 103 BC.
• The Bell 103 modem was the first commercial modem for computers, released by AT&T in 1962
• The flight number of Pan Am Flight 103, which crashed over Lockerbie, Scotland on December 21, 1988, and was at one time called "the air-disaster of the century".
• The 103rd United States Congress met from January 3, 1993 to January 3, 1995, during the Bill Clinton administration
• The original designation (AMD-103), for the GE Genesis, a diesel locomotive
• Radio stations such as Y-103 WYFM FM, Sharon, Pennsylvania; B-103 WBZO, Long Island, NY; and WODS Oldies 103.3 FM, Boston
• New York City subway stations such as 103rd Street on the IRT Flushing Line and 103rd Street on the IND Eighth Avenue Line
• 103rd Street-Kenneth Hahn is a station on Los Angeles County Metropolitan Transportation Authority's Metro Blue Line
• The CD 103 Boulevard by Dominican singer Johnny Ventura
• Psalm 103 is a Hebrew poem recorded as having been written by King David
• USS Truxtun (DDG-103) is a US Navy Arleigh Burke-class destroyer currently under construction
• One Hundred and Three poem by Henry Lawson about his prison number, published in 1908

In the space program

• A-103 was the 8th unmanned Saturn flight of the Apollo space program, launching February 16, 1965
• The space shuttle Discovery STS-103 launched December 19, 1999
• Space Shuttle Discovery Orbiter Vehicle Designation: OV-103 is one of the three currently operational spacecraft in the Space Shuttle

In sports

• The 2007 World Series between the Boston Red Sox and the Colorado Rockies was the 103rd Fall Classic
• The 103rd running of the Boston Marathon was held April 19, 1999
• The 103rd running of the Kentucky Derby was won by Triple Crown winner Seattle Slew on May 7, 1977

See also

• List of highways numbered 103
• 103rd Street stations of the New York City Subway

References

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133ca:Cent tres

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