Alpha (disambiguation)

Alpha may refer to:

The Greek letter alpha

Alpha (letter), a letter in the Greek alphabet. α may be used as the symbol for:

• Angle of attack in aerodynamics
• Common-base current gain of a transistor in electronics
• In physics:
  • Fine-structure constant, a fundamental physical constant
  • Alpha particle, form of particle radiation
  • H-alpha, or H-α, an emission line created by hydrogen atoms
• The alpha carbon in organic chemistry
• In Bayer designation, the typically brightest star in a constellation
• The significance level in statistical hypothesis testing
• Alpha channel, describing transparency and opacity in computer graphics
• The alpha coefficient in evaluating financial returns
• Thermal diffusivity

Place names

• Alpha, Michigan
• Alpha, Minnesota
• Alpha, New Jersey
• Alpha, Queensland

Media, literature and fiction

• Alpha (band), a British electronic music group.
• Alpha (Sevendust Album), an album by the band Sevendust.
• Alpha (album), an album by the band Asia
• Alpha Magazine, Australian men's sport magazine
• Alpha (computer), a fictional computer in Mike Walker's radio play Alpha
• Alpha (Magic: The Gathering), the first Magic: The Gathering cards set
• Alpha 5/Alpha 6/Alpha 7, nicknames of the characters in the Power Rangers television programs
• Alpha 60, a sentient computer in the film Alphaville
• Alpha TV, a Greek terrestrial channel
• ARC Trooper A-17, nicknamed "Alpha", a character from various Star Wars comics
• The highest social class in Aldous Huxley's novel Brave New World
• Moonbase Alpha, the primary setting for the television series Space: 1999
• Alpha the Ultimate Mutant, a character featured in Marvel Comics
• Alpha (planet) in Isaac Asimov's novel Foundation and Earth
• Alpha (known as Proto in Japan) is the glitched prototype of the Internet and final boss of the video game MegaMan Battle Network 3

Science and mathematics

• Alpha Centauri, the brightest star system in the southern constellation of Centaurus
• Alpha (biology), "alpha male" and "alpha female", the highest ranking individuals in a community of social animals
• Alpha (investment), a measurement of risk-adjusted performance
• Alpha (machine learning), the degree to which a learning agent takes into account new information
• Alpha waves, recorded by electroencephalography
• Cronbach's alpha, a statistical measure of reliability
• ALPHA refers to the set of ASCII characters A-Z and a-z, as defined in RFC 4234
• The ALPHA programming language
• Alpha, a development stage of software

Other

• Space Station Alpha, the original name and unofficial call sign for the International Space Station
• The first letter in the NATO phonetic alphabet
• Service "A", one of the uniforms of the United States Marine Corps
• Alpha (radio navigation), a Russian radio navigation system similar to the former Omega Navigation System
• DEC Alpha, a microprocessor/central processing unit (CPU)
• Alpha 2000, a light aircraft built in New Zealand
• Alpha Group, a dedicated counter-terrorism unit that belonged to OSNAZ
• Alpha class submarine, a Russian fast attack nuclear submarine
• Alpha course, an introductory course in Christianity
• Sony α or Sony Alpha, a digital SLR series by Sony
  • Minolta α or Minolta Alpha, the Japanese name for a series of SLR cameras known as Maxxum or Dynax elsewhere, and predecessor to Sony's brand of the same name
• Tropical Storm Alpha (2005)
• Alpha Industries, clothing company
• Alpha Mukama, Tanzanian Nutritionist, programme Coordinator,SPW Mbeya.
• Alpha, a milestone in software development.

See also

• Alfa