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The Constellation-class starship was a type of Federation star cruiser employed by Starfleet from the late 23rd century through the late 24th century.


The Constellation-class began service as early as 2278, when the USS Constellation appeared on a Starship Mission Assignments chart on the bridge of the USS Bozeman after exiting a temporal causality loop. (TNG: "Cause And Effect")

The USS Hathaway, was constructed in 2285 at Yoyodyne Propulsion Systems at the Copernicus Ship Yards on Luna. (USS Hathaway dedication plaque)

Nearly a decade after the launch of the Hathaway, the prototype for the class, the USS Constellation, was still undergoing certification trials. (Star Trek VI: The Undiscovered Country Operation Retrieve chart)

Four decades later, Starfleet continued to launch new ships of this class, including the USS Stargazer. (PIC: "The Star Gazer" commemorative plaque)

During the early-to-mid 24th century, the Constellation-class was noted for performing both deep-space exploration and defensive-patrol duties. (TNG: "The Battle", "The Wounded")

By the mid-2360s, this class of "old-style" star cruiser was on the fringe of being phased out of the fleet. Those that had been decommissioned, including the eighty-year-old Hathaway, were stripped of their offensive systems and rendered "warp inactive," which included the removal of all antimatter. (TNG: "Peak Performance")

Those that remained in service were typically relegated to transport duties. (TNG: "Elementary, Dear Data") Constellation-class starships were also used in second-line service, including the hastily-organized Federation blockade during the Klingon Civil War, and later participated in the Dominion War in 2374. (TNG: "Redemption II"; (DS9: "In the Pale Moonlight" okudagram)

Technical data[]


A ship of this class could be manned with a crew of forty. (TNG: "Peak Performance")

Propulsion systems[]

One notable feature of the Constellation-class was that it was outfitted with four warp nacelles. (TNG: "Peak Performance"), et al.) The Constellation-class had a maximum speed of warp 9. (TNG: "The Battle")

During their original construction, Constellation-class starships employed Avidyne engines. By the latter 24th century, these had been replaced with more effective engines. (TNG: "Peak Performance") These starships had at least two impulse reactors. (TNG-R: "The Battle")

In 2369, Captain Jean-Luc Picard, commander of the Galaxy-class USS Enterprise-D regarded his former command, the Constellation-class USS Stargazer as being "an overworked, underpowered vessel that was always on the verge of flying apart at the seams," adding, "in every measurable way, my Enterprise is far superior." However, he did admit that there were days when he would've done anything to be back aboard the Stargazer. (TNG: "Relics")

Interior design[]

Main bridge[]

USS Stargazer, viewscreen

Main viewscreen

Although the layout of the main bridge of the Constellation-class of starships could be described as "standard" in terms of how Federation starship bridges are designed, the Constellation-class appeared to have two prominently different bridge types. These variations can be recognized between the USS Hathaway, launched in 2285, and the USS Stargazer, last active in 2355.

Ultimately, both bridge sets were redresses of the Galaxy-class battle bridge, (TNG: "Encounter at Farpoint") which was, in turn, a redress of the Constitution II-class main bridge. (Star Trek: The Motion Picture)

USS Hathaway bridge

Bridge of the USS Hathaway

The Hathaway-type bridge had an unusual arrangement, with front of the bridge relatively wide open and the primary stations cramped in the rear of the bridge.

The helm and navigation stations were located on the extreme port and starboard sides of the ship with the captain's chair near the center of the bridge. This gave the captain an unobstructed view of the viewscreen located at the front of the bridge. Next to the captain's chair, set less than a meter back and off to the right, was the first officer's chair with console.

Directly behind the command chairs was the tactical station, with the engineering station to the far rear (on the port side) and science station to the far rear (starboard side). In front of the engineering station was an entryway to the bridge entryway. (TNG: "Peak Performance")

USS Stargazer bridge1

Bridge of the USS Stargazer

Described as a "cramped little bridge" by Picard, the Stargazer-type was actually less cluttered than the Hathaway-type, with a design more reminiscent of the Constitution II-class- or Ambassador-class bridge. (TNG: "Relics")

Considering the more updated look of the Hathaway bridge, it may be surmised that the Constellation-class may have undergone a bridge upgrade in the early 24th century, similar to the Constitution II-class bridge upgrades of the 2270s.

In the front was the viewscreen, with side-by-side helm and navigator consoles, a feature that noticeably contrasts that of the Hathaway-type. The captain's chair was directly aft the aforementioned stations; no accommodations were present for the first officer in this type.

At the rear of the bridge, a tactical station was found on the far left with monitors along the back wall behind the captain's chair, with a second primary station located on the opposite side of the bridge. The primary stations were attached to the rear wall of the bridge, support railing partially enclosed that section from the front of the bridge. On either side of the rear wall monitors and between either primary station were two turbolifts. Along the port wall, directly to the left of the captain's chair and between the tactical station and the viewscreen, was the entryway to the captain's ready room. (TNG: "The Battle")

Main engineering[]

Main engineering was where the ship's power systems were controlled and was the home of the ship's antimatter warp drive chamber and impulse engine controls. (TNG: "Peak Performance")

Crew cabins[]

USS Stargazer, Picards cabin

Picard's quarters

Cabins aboard Constellation-class starships were of typical design associated with Federation starship of the era, providing spartan accommodations for the crew. (TNG: "The Battle")

The portion of Captain Picard's quarters seen in "The Battle" were a redress of the junior officer quarters aboard the USS Enterprise-D, which itself was a redress of Captain Kirk's movie era quarters.

Ships commissioned[]




Background information[]

The first Constellation-class ship seen, the Stargazer, was originally planned to be a Constitution II-class ship, allowing the visual effects staff of Star Trek: The Next Generation to make use of the existing movie USS Enterprise-A model. Actually, the producers did not make the decision to build a new, full-scale filming, or studio model, of the Stargazer until after the episode was filmed with both Wil Wheaton and LeVar Burton calling it a Constitution. The choice of the name "Constellation" was based largely on the fact that it could be dubbed over La Forge's line since the two words are so similar. (Star Trek: The Next Generation Companion, 3rd ed., p. 41; Star Trek Encyclopedia, 4th ed., vol. 1, p. 158)

In Vonda N. McIntyre's novelizations of Star Trek III: The Search for Spock and Star Trek IV: The Voyage Home, both the original refit USS Enterprise and the brand-new USS Enterprise are referred to as Constellation-class starships instead of Constitution-class.

Studio model[]

See main article: Constellation-class model

The Magazine[]

A Starfleet Technical Database-article appearing in Star Trek: The Magazine Volume 3, Issue 9 that was later written by designer-creator Rick Sternbach stated that this class of ship had fifteen decks and a crew complement of 535 and that the class consisted of eight vessels (including the USS Gettysburg and USS Magellan). In addition to the aforementioned, the article also stated that a USS Valkyrie (β) (NCC-2590) and a USS Gihlan (β) (NCC-9761) existed, the latter named after an admiral who oversaw the development of Constellation-class starships. The class's mission statements were: long-range sensor analysis within threat territories, communications, intelligence gathering, deployment and retrieval of cargo and stealth shuttles, general science and patrol duties.

External links[]