A map of the Milky Way Galaxy
The Orion Arm is a collection of stars, planets, nebulae, and other spatial objects that forms one of many curved "arms" projecting out from the center of the Milky Way Galaxy.
The Orion Arm (or Local Spur/Orion Spur) was a minor "arm" extending from the Sagittarius Arm, and was the location of the Sol system.
The Orion Arm was shown on Federation star charts in astrometrics aboard the USS Voyager during the later years of its seven-year journey in the Delta Quadrant. (VOY: "Inside Man", et al., display graphic)
In an alternate timeline, the star chart depicting Voyager's flight path home was also displayed in Captain Harry Kim's ready room aboard the USS Rhode Island in 2404. (VOY: "Endgame")
| Spiral Arms of the Milky Way Galaxy |
|---|
| 3 kpc • Carina • Crux • Denkiri • Norma • Orion • Perseus • Sagittarius |
The graphic is shown in legible detail in Geoffrey Mandel's Star Trek: Star Charts (pp. 76-77).