Hosnian Prime

Hosnian Prime was a planet in the Hosnian system of the Core Worlds and was a member world of the New Republic. Thirty years after the Battle of Endor, it served as the headquarters of the Galactic Senate and capital of the New Republic during the conflict between the Resistance and the First Order. Seeking to rid the galaxy of what it saw as the illegitimate Republic government, the First Order used its superweapon, Starkiller Base, to destroy Hosnian Prime and all other astronomical bodies in the system.

History
Hosnian Prime was a planet located in the Core Worlds of the galaxy. It was the capital of the New Republic by the time of the conflict between the Resistance, an off-shoot of the Republic, and the Imperial successor force known as the First Order. The planet was chosen as the Republic's capital and the headquarters of the Galactic Senate through an election; the Senate's location rotated every so often based on what planet was elected to serve as its headquarters at a given time.

The First Order, believing the Republic to be an illegitimate government incapable of maintaining order in the galaxy, targeted the Republic-controlled Hosnian system with a superweapon known as Starkiller Base in an effort to destroy them. The Starkiller turned its sights towards Hosnian Prime and incinerated it with plasma sucked from the Starkiller sun. Chancellor Villecham and Korr Sella were both victims in the destruction of the system.

Behind the scenes
Hosnian Prime briefly appeared in the 2015 film Star Wars: Episode VII The Force Awakens. Information about the planet and its status within the New Republic was elaborated upon in the reference book Star Wars: The Force Awakens: The Visual Dictionary.

Appearances

 * "The Face of Evil"
 * Star Wars: Episode VII The Force Awakens
 * Star Wars: Episode VII The Force Awakens novelization
 * Star Wars: Episode VII The Force Awakens junior novelization