Alpha III
Alpha III was the inhabited third planet in its star system. The planet was the home of an Earth colony.

An important piece of Human rights legislation, the Statutes of Alpha III, was written on this planet by the Tribunal of Alpha III. ()

See also 
 Alpha I
 Alpha VII

Appendices

Background information 
According to Star Trek: Star Charts ("United Federation of Planets I"; "United Federation of Planets III") and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the Alpha system was located in the Alpha Quadrant. The primary was a G-class star. In 2378, Alpha III was listed as a Federation member.

Apocrypha 
According to Star Trek Maps (p. 22), the colony was established during the 22nd century as "Terra Four". By the 23rd century, the planet had a population of 175 million, it was a Federation member, and one of the seven members of the Federation security council.

According to The Worlds of the Federation, it was called "Kerecindal" by its natives. FASA's RPG sourcebook The Federation describes it as the fourth planet in the  system.

External link 
 

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Alpha 03
Colonies