Alpha

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Alpha may refer to:

Contents 1 The Greek letter alpha 2 Place names 3 Media, literature and fiction 4 Science and mathematics 5 Other

[edit] 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
  • Alpha carbon organic chemistry to indicate the position of a group in a molecule
  • 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
  • The Service Alpha uniform of the United States Marine Corps.
  • The first letter in the NATO phonetic alphabet.

[edit] Place names

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

[edit] Media, literature and fiction

• Alpha (band), a British electronic music group.
• Alpha (album), an album by 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 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.
• The primary setting for the fictional television series Space: 1999
• Alpha the Ultimate Mutant, a character featured in Marvel Comics.
• A planet called Alpha 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.

[edit] Science and mathematics

• Alpha (biology), "alpha male" and "alpha female", the highest ranking individuals in a community of social animals
• Alpha (investment), a measuring of risk-adjusted performance
• Alpha (machine learning), the degree to which a learning agent takes into account new information
• Alpha (radio navigation), a Russian radio navigation system, similar to the former Omega Navigation System
• Alpha channel, a transparency information layer to supplement the three RGB color layers to make the RGBA color space.
• Alpha waves, recorded by electroencephalography
• Cronbach's alpha, a statistical measure of reliability.
• DEC Alpha, a microprocessor/central processing unit (CPU) from HP/Compaq, formerly Digital Equipment Corporation (DEC).
• Space Station Alpha, an alternative name for the Space Station Freedom
• A unofficial call sign for the International Space Station
• An early development stage in software engineering (e.g. an Alpha version)
• ALPHA refers to the set of ASCII characters A-Z and a-z, as defined in RFC 4234.

[edit] Other

• 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" is a development stage of software
• [Alpha 2007], A Operating System from the dutch company Celestia to be used with their 299 euro laptop.