Alpha Leonis system

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The Alpha Leonis system (or Regulus system) was a star system. (TOS: "The Cage")

The system was located 300 light years from the Bajoran system. (DS9: "Fascination")

This system contained planets capable of supporting life; there was a population on Regulus III. Animal life existed in this system, such as the eel-bird of Regulus V. The Regulan bloodworm also originated here. (TOS: "Amok Time", "The Trouble with Tribbles"; DS9: "Fascination")

In 2154, a Vulcan High Command attack fleet massed in this system in preparation for an abortive preemptive strike against the Andorians. The Regulus system was the closest accessible system that was known to be outside the maximum range of Andorian Imperial Guard listening posts. (ENT: "Kir'Shara")

Christopher Pike once considered retiring and going into business on Regulus or on the Orion colony. (TOS: "The Cage", TOS: "The Menagerie, Part I", "The Menagerie, Part II")

It was unknown to which planet of the Regulus system he was referring.

In 2366, this system was in need of medical supplies, which were transported there by the USS Enterprise-D. (TNG: "The Vengeance Factor")

Additional References

• ENT:
  • "Two Days and Two Nights"
  • "Stratagem"

Background information

According to the reference work Star Trek: Star Charts, Alpha Leonis (Regulus) was a trinary system and a destination on a major space lane, and was visited by the Enterprise on her maiden voyage in 2151. (pages 56, 61, 96) The primary star was a Class B (Blue) star, and the two companion stars were a Class K (Orange) and a Class M (Red). (pg. 56)

The reference work Star Trek: Star Charts presented two contradictory scenarios for the Alpha Leonis system. The first had Alpha Leonis as a star in the Alpha Quadrant. This star had the alternate name of Deneb. The fourth planet of this system was the homeworld of the Bandi. (pg. 34) The second presented Alpha Leonis as a star in the Beta Quadrant. This star had the alternate name of Regulus. (pg. 56)

File:Star-chart alpha-beta quadrant.jpg

Alpha and Beta Quadrant star chart which depicts the UFP

In the episode "Conspiracy", there was a galactic map. This map showed the locations of several stars and planets from Star Trek: The Original Series and Star Trek: The Animated Series. In this map, Regulus was located in a block set between 347 and 348, and five blocks from the galactic edge. (Sol was located in a block set between 348 and 349, and two blocks from the galactic edge.)

In the real world, Regulus was a star in the constellation Leo, located approximately 77.5 light years from Sol.

External link

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