Three star

Three star or three stars is a grading received in a star classification scheme.

Three star or three stars may also refer to:

In music

See also

Star

A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations.

For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. Once the hydrogen in the core of a star is nearly exhausted, almost all naturally occurring elements heavier than helium are created by stellar nucleosynthesis during the star's lifetime and, for some stars, by supernova nucleosynthesis when it explodes. Near the end of its life, a star can also contain degenerate matter. Astronomers can determine the mass, age, metallicity (chemical composition), and many other properties of a star by observing its motion through space, luminosity, and spectrum respectively. The total mass of a star is the principal determinant of its evolution and eventual fate. Other characteristics of a star, including diameter and temperature, change over its life, while the star's environment affects its rotation and movement. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung–Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.

Clash of Clans

Clash of Clans is a freemium mobile MMO strategy video game developed and published by Supercell.

The game was released for iOS platforms on 2 August, 2012, and on Google Play for Android on 7 October, 2013.

Gameplay

Clash of Clans is an online multiplayer game in which players build a community, train troops, and attack other players to earn gold and elixir, and Dark Elixir, which can be used to build defenses that protect the player from other players' attacks, and to train and upgrade troops. The game also features a pseudo-single player campaign in which the player must attack a series of fortified goblin villages.

Buildings

To earn and store gold and elixir, players must build gold mines and gold storages and elixir collectors and elixir storages, respectively. Elixir is used to train new troops, carry out research in the laboratory to upgrade troops, to re-load X-Bows (available from Town Hall 9) and to build and upgrade certain buildings, mostly pertaining to buildings used in attacking another player's base. Gold is used to build defensive buildings and to upgrade the town hall, which allows access to more buildings and higher levels for existing buildings. At higher levels, dark elixir becomes available; this type of elixir is used to train and upgrade dark elixir troops and heroes, create dark spells, and fuel the Inferno Tower, a defensive building that is available only at Town Hall 10. To earn and store dark elixir, players must build dark elixir drills and dark elixir storages.

Contest of Champions

Contest of Champions may refer to: