Memory Beta, non-canon Star Trek Wiki

A friendly reminder regarding spoilers! At present the expanded Trek universe is in a period of major upheaval with the finale of Year Five, the Coda miniseries and the continuations of Discovery, Picard and Lower Decks; and the premieres of Prodigy and Strange New Worlds, the advent of new eras in Star Trek Online gaming, as well as other post-55th Anniversary publications. Therefore, please be courteous to other users who may not be aware of current developments by using the {{spoiler}}, {{spoilers}} or {{majorspoiler}} tags when adding new information from sources less than six months old. Also, please do not include details in the summary bar when editing pages and do not anticipate making additions relating to sources not yet in release. 'Thank You


Memory Beta, non-canon Star Trek Wiki
Memory Beta, non-canon Star Trek Wiki
For other uses, see Ptolemy.

The USS Ptolemy was a 22nd century United Earth starship, a Daedalus-class vessel in Earth Starfleet service in the 2150s decade.

Service history and disposition[]

Ptolemy saw action during the Earth-Romulan War in the 2150s.

In the year 2156, it was one of the Starfleet ships dispatched to Berengaria VII to repel the Romulan Star Empire forces who had claimed the system in the First Battle of Berengaria in November 2155 and destroyed Earth Starbase 1.

On 2 April, Ptolemy was one of nine Daedalus-class cruisers in the fleet that took part in the Second Battle of Berengaria. Romulan warships destroyed the Ptolemy and six of its sister ships in the battle.

In the aftermath of the battle, tactical officer Lieutenant Malcolm Reed reported that the seven ships had been lost with all hands to Captain Jonathan Archer, commanding officer of Enterprise NX-01. (ENT - The Romulan War novel: Beneath the Raptor's Wing)


By the year 2270, the Ptolemy had been replaced by another Daedalus-class vessel of the same name, the science vessel USS Ptolemy (NCC-150). (STO - Agents of Yesterday mission: "Painful Omens")



ships named Ptolemy
UFP emblem image. USS Ptolemy (Daedalus-class)USS Ptolemy (NCC-3801, Ptolemy-class)USS Ptolemy (NCC-150, Daedalus-class)see also: Ptolemy-class Seal of the Federation Starfleet.
Daedalus-class starships
United Earth, Starfleet
(primary universe)
standard configuration A.G. RobinsonAdirondackArchonArmstrongBachCarolinaCowpensDaedalusDykstraEssexFranklin RooseveltGettysburgHeinleinJeinKearsargeKon-TikiLovellNez PerceNightingaleOkudaOlympusPilgrimProbertPtolemyShepardStephen DecaturValley ForgeWilliam ClarkYeagerYorktownZefram Cochrane {{{2}}} icon image. {{{2}}} icon image.
Federation, Starfleet
(primary universe)
standard configuration AnsonArchonBenjamin FranklinCharles DarwinDaedalusDiscoveryDrakeEssexHeisenbergHorizonLindberghLovellMasaoNimrodRepublicRochelleValiantWakefieldZander Federation icon image. Seal of Federation Starfleet icon image.
variant configurations Ceres-class: CeresPallasVestaDrexler-class: HeliosNautilus-class: NautilusPerdix

Appearances and references[]