A brown dwarf is a type of stellar classification describing a type of sub-stellar planetary object that is at the bottom threshold of sustaining reaction necessary to be considered an actual star. Despite the object's description as a variety of dwarf star, it can technically also be defined in some conventions of science and astronomy as a gas giant or rogue planet.
History and specifics
In the year 2152, the United Earth Starfleet starship Enterprise NX-01 planned to investigate a brown dwarf's star system. The ship's investigation was interrupted when the NX-01 was infested by a symbiotic lifeform. (ENT episode: "Vox Sola")
The abundance of the element dysprosium in a brown dwarf star was different than regular stars, when factored with terbium, holmium, erbium, and europium, according to an impromptu scientific dissertation given by Data in 2365. (TNG episode: "Manhunt")
In 2367, the USS Enterprise-D made way for a nearby brown dwarf, intending to use its mass to help create a gravitational catapult effect to deflect a mirror universe invasion out of the primary universe. (TNG novel: Dark Mirror)
The Solanae Dyson Sphere, constructed by the Solanae roughly concurrent with the fall of the Iconian Empire, 200,000 years prior to the 25th century, was centered around a brown dwarf the was part of the Delta Solanae system in the galaxy's Delta Quadrant. Originally, the star was of a different type, transformed into a brown dwarf due to a large-scale industrial accident, which swamped the Dyson sphere with tetryon radiation, forcing the inhabitants to abandon this place. (STO video game: Star Trek Online)
|By class and type||class O blue-violet star • class B blue star • class A blue-white star • class F white star (white dwarf) • class G yellow star (yellow dwarf • yellow giant) • class K orange star (orange giant) • class M red star (red dwarf • red giant) • boson star • brown dwarf • green star • N-type star • R-type star • S-type star • D-type star|
|By size or makeup||black hole/black star • carbon star • dwarf star (brown dwarf • red dwarf • white dwarf • yellow dwarf) • giant star (blue giant • red giant • orange giant • yellow giant) • Lazarus star • microstar • neutron star (collapsar • magnetar • pulsar) • protostar • supergiant star • variable star • white hole • Wolf-Rayet star|
- ENT episode: "Vox Sola"
- TNG episode: "Manhunt"
- Decipher RPG module: Starships
- Decipher RPG module: Worlds
- TNG novel: Dark Mirror
- TTN novel: Orion's Hounds
- ST - Prey novel: The Hall of Heroes
- STO video game: Star Trek Online