Horizon (disambiguation)

Horizon is the line at which the sky and the earth's surface appear to meet.

Horizon or horizons may also refer to:

Business

* Horizon Global, a corporation specializing in media-compression technology, peer to peer video telephony, and video on demand
* Horizon Pipeline, a small natural gas pipeline that moves gas in northern Illinois
* Horizon Power, a corporation owned by the Government of Western Australia
* Planning horizon, the amount of time an organisation will look into the future when preparing a strategic plan

Computer science

* Horizon of connectivity, the boundary in most client-server architectures that limits access to server-based resources
* NorthStar Horizon, an 8-bit computer system based on the ZiLOG Z80A microprocessor
* Split horizon, one of the methods in computer networks used to prevent routing loops

Education

* Horizon High School, a public high school open to all students for grades 9-12
* Horizon Science Academy, a group of charter schools which is owned by Concept Schools in Ohio
* École secondaire l'Horizon, a french public secondary school in Quebec

Geology, soil science and archeology

* Horizon refers to a specified layer within rock, sediment or soil; see also stratum and bed.
** Soil horizon
** Archaeological horizon

Music

* ESP Horizon, a guitar model distributed by ESP
* Horizon Records, an American record label
* "Horizon" (Remioromen album), the third album of the Japanese band Remioromen
* "Horizon" (Carpenters album), an album by The Carpenters
* "Horizons" (album), an album by Parkway Drive
* "Horizons", a song by Genesis

Periodicals

* "Horizon", British magazine, 1940-1949, founded by Cyril Connolly, Stephen Spender and Peter Watson
* "Horizon", U.S. magazine, 1958-1989, originally published by "American Heritage"
* "Horizon Weekly", Armenian-Canadian newspaper publication

Physics

* Absolute horizon, a boundary in spacetime in general relativity inside of which events cannot affect an external observer
* Apparent horizon, a surface defined in general relativity
* Cauchy horizon, a surface found in the study of Cauchy problems
* Celestial horizon, a great circle parallel to the horizon
* Cosmological horizon, a limit of observability
* Event horizon, a boundary in spacetime beyond which events cannot affect the observer
* Killing horizon, a null surface on which there is a Killing vector field
* Particle horizon, the maximum distance from which particles can have travelled to an observer in the age of the universe

Radio

* Horizon Radio (UK), the pop-format Independent Local Radio station for Milton Keynes and North Buckinghamshire
* Horizon Radio, a state-owned Bulgarian Radio Station
* Radio horizon, the locus of points in telecommunication at which direct rays from an antenna are tangential to the surface of the Earth

pacecraft

* New Horizons, the first spacecraft expected to flyby and study the ex-planet Pluto.

Television

* Horizon (BBC TV series), a long-running television strand on BBC television showing popular science documentaries
* Horizon (KAET TV program), is a current events television program produced by Arizona-based KAET.
* "Horizon" ("Enterprise" episode), a second season episode of "Star Trek: Enterprise"
* Horizon (Stargate), an experimental space-based weapon seen in the television series Stargate: Atlantis
* Horizons (TV series), a US television program aimed at Greeks abroad

Transportation

* Artificial horizon, an instrument used in an aircraft to inform the pilot of the orientation of the airplane relative to the ground
* Chrysler Horizon, a car designed by Chrysler Europe
* Horizon Air, a regional airline and subsidiary of the Alaska Air Group
* Horizon Airlines (Australia), an Australian airline based in Sydney
* Horizon class frigate, a multi-national collaboration to produce a new generation of anti-air warfare frigates
* Horizon Fleet, an Amtrak passenger car used mostly in the Midwest

Other

* Horizon (camera), a swing-lens panoramic camera manufactured in Russia
* Horizon (World of Darkness), a term used in the old World of Darkness role-playing game
* Horizon class frigate, a Franco-Italian design.
* Horizon League, a collegiate athletic conference in the midwestern USA
* Horizons (Epcot attraction), a former Epcot Center attraction at Walt Disney World
* "", a massively multiplayer online role-playing game developed by Artifact Entertainment
* , an early software compilation for the ZX Spectrum
* Project Horizon, a study to determine the feasibility of the construction of a military base on the moon conducted in 1959

ee also

* Lost Horizon