Memory Beta, non-canon Star Trek Wiki
Memory Beta, non-canon Star Trek Wiki

Ross 154 (also known as V1216 Sagittarii) is a red dwarf star (spectral class M3.5V), located about 2.96 parsecs (9.68 light-years) from Earth, where it is visible in the constellation of Sagittarius. (TOS reference: Spaceflight Chronology)

On several occasions in 2364, viewscreen readouts aboard the USS Enterprise-D showed the location of Ross 154, in the form of charts from the Enterprise library computer. (TNG episodes: "The Naked Now", "The Last Outpost", "Conspiracy")

The Chronology depicted Ross 154's name and distance from Earth on star chart illustrations, but since it is a "real" star, modern scientists know a few things about its makeup that weren't in its Star Trek mentions. It is notable that Ross 154 was briefly glimpsed onscreen in canon productions of Star Trek because the production staff copied their star charts from the earlier, non-canon Chronology. Given its close proximity to Earth, its possible that Ross 154 is in or near sector 001, although this hasn't been stated in Star Trek publications. Neither real observations nor the Chronology info has specified whether or not there is a star system associated with this body.
Stars, systems and objects of the Sagittarius constellation
Great BarrierLambda Sagittarii (Kaus Borealis, 22 Sgr, Chalna) • M-21 Cluster (Sarsithia system, Beta Quaternas) • M23 ClusterOmega SagittariiV1216 Sagitarii (Ross 154) • Sagittarius Dwarf GalaxyZeta Sagittarii (Ascella)

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