(covers information from several alternate timelines)
Murasaki 312, also known as the Murasaki Quasar, was a quasar-like electromagnetic phenomenon in the Alpha Quadrant. It was located three days away from Makus III at warp 1. ( : " TOS ")
The Galileo Seven
2367, the location of Murasaki 312 was labeled on a tactical situation monitor in Captain Benjamin Maxwell's ready room on the USS . ( Phoenix : " TNG ", The Wounded )
2368, the location of Murasaki 312 was labeled on a tachyon detection grid on one of the viewscreens of the USS Enterprise-D bridge. ( : " TNG ", Redemption II )
In Enterprise 2366, in an alternate timeline, during the Federation-Klingon War, the location of Murasaki 312 was labeled on a tactical situation monitor in the ready room aboard the -D. ( : " TNG ", Yesterday's Enterprise okudagram)
2267, this quasar ionized an entire sector, including four star systems. This quasar, and others like it, generated what was known as the Murasaki Effect.
Sensor readings from the USS attempted to describe Murasaki 312:
Enterprise Captain James T. Kirk of the Enterprise was under standing orders to investigate formations similar to Murasaki 312, consequently delaying the Enterprise from a medical supply mission to Makus III, and sending the shuttlecraft to survey the formation. While on this assignment, the Galileo Galileo crashed on Taurus II within the formation. ( : " TOS ")
The Galileo Seven
2328, this was the destination for passengers traveling from Midos V Satellite City Spaceport via commercial transport. Suzi Shimizu traveled on the SS , Manoa John Van Citters on the SS , and Kogin Dennis McCarthy, Joe Bauer, and David Anderson on the SS . ( Wisconsin : " TNG-R ", Inheritance )
2367, around stardate 44390.1, the Enterprise-D conducted a long range sensor scan of the Murasaki Quasar. ( : " TNG ")
The location of Murasaki 312 on a tactical situation monitor
This phenomenon's quadrant of origin is inferred based on the position of neighboring locations – the Altair system ( Altair III), Andor, Babel, Delta Vega, Eminiar, Janus VI, and Rigel – as seen in the star charts appearing in and in the Star Trek VI: The Undiscovered Country Star Trek: Picard episode " ". Maps and Legends In the script of "The Galileo Seven", Murasaki 312 was initially described physically as "
a misty, slowly undulating
-shining effect. It is gelatinous, shimmery, entirely other-worldly.
(紫) is the Japanese word for the gromwell plant as well as being an abbreviation for
(紫色), meaning the color purple (in reference to the dye yielded from the root of the plant).  Lady Murasaki Shikibu is also the name traditionally given to the author of
The Tale of Genji
, often regarded as the world's first novel.