Star Trek Maps · Chapter 10 · Chart D — Quadrant 3 South, Worlds and the Rigel System
Chart D presents Astrogation Map Six, a side view (X-Z plane) of Quadrant 3 South within the Enterprise's zone of patrol, paired with a gallery of illustrated "Interesting Worlds," the Key to Astrogation Maps, and a detailed cutaway of the Rigel Star System with its accompanying descriptive note.
Chart D — full plate, combining the "Interesting Worlds" gallery, Astrogation Map Six (Quadrant 3 South, X-Z plane), the Key to Astrogation Maps, and the Rigel Star System cutaway.
Interesting Worlds — a panel of full-color astronomical plates depicting notable planets of the quadrant, including Earth, Vulcan, Argo and other worlds, each labelled with its name.
Astrogation Map Six — central side view (X-Z plane) of Quadrant 3 South, the U.S.S. Enterprise's zone of patrol, showing the boundary of Federation territory, the Enterprise zone of patrol, the radial sector gridwork, and named star systems and worlds such as Feinberg's Star, Argelius, Epsilon, Babel, Vulcan, Excalbia, Omicron Delta, Lactra, Delta Theta, Arellost, the site of the lost U.S.S. Horizon, the Romulan Empire and Romulan Neutral Zone, Fabrina, Organia, Triskelion, the Tantalus colony, Sherman's Planet, Yonada, Ardana, the Melkotian space, UFC 347601, Wise's Star, Simmons' World, and the marker beacon and buoy boundaries.
Key to Astrogation Maps — legend for Stars and Natural Objects (absolute magnitude and spectral class scales; nova, pulsar, neutron star, black hole, planetoid, nebula, binary, trinary and variable stars) and for Artificial Objects, Tracks and Boundaries (outpost, buoy, star, deep space communication, major space lanes, starship patrol routes, communication lanes, federation member territory, foreign boundaries, danger areas, and tracks of notable objects, blue incoming and red outgoing), together with the Star Symbols key.
Rigel Star System — cutaway diagram of the Rigel (Beta Orionis) system showing the primary star Rigel A, its binary companion Rigel B, and the orbits of the numbered planets Rigel I through Rigel XII (including the Class M worlds II, IV, V, VII and VIII / Orion), with a distance-from-primary scale.
Rigel Star System
Rigel (Beta Orionis) is a massive blue-white star that supports an extensive planetary system, including five Class M planets: II, IV, V, VII, and VIII. Planet VII has an oversize moon and is properly a dual-planet system; VIII, also known as Orion, is the home of the Orion colonies. Several worlds also orbit Rigel's binary companion, and are colonies of Rigel VIII. Inhabitants of the system must contend with a radiation belt and an intense magnetic field extending outward about 80 AU from the star.