Sailor Senshi

Sailor Senshi (セーラー戦士; meaning "Sailor Warrior") is a term referring to the main female protagonists of all versions of Sailor Moon. They are also referred to simply as Senshi.

Princesses of their own planets
Each Sailor Senshi is a member of their respective planets royal family. Mentioned by Luna and Artemis in the manga, while it's the Inner Senshi's duty to protect Princess Serenity from danger, it was also their duty to rule their home planets.

All of the Solar System Senshi have castles that orbit their planet, with the exception being Sailor Moon with Moon Castle. They can use these castles to call forth extra power.

Inner Senshi

 * Sailor Moon
 * Sailor Mercury
 * Sailor Mars
 * Sailor Jupiter
 * Sailor Venus
 * Sailor Chibi Moon  (from the 30th/21st Century)

Outer Senshi

 * Sailor Uranus
 * Sailor Pluto
 * Sailor Saturn
 * Sailor Neptune

Otaku Senshi

 * Sailor Stellar
 * Sailor Galaxy
 * Sailor Cookie
 * Sailor Bright Eyes
 * Sailor Snow

Senshi from outside the Solar System

 * Sailor Cosmos

Trivia

 * Earth is the only planet that was never given an official Sailor Senshi, being represented by Tuxedo Mask instead.