The Helios class was a Federation space station type, a hub and research station in Starfleet and civilian service throughout the 24th century. By the 2380s, the design was considered out of date. (DS9 novel: Force and Motion)

History and specificationsEdit

A Helios station was mushroom-shaped. The upper decks were housed in the mushroom's cap, or saucer section, and included the bridge and officer quarters. Four to ten decks of the stalk contained additional quarters, labs, work spaces, and stowage. The station's reactor was located in a bulb at the base of the stalk. The shuttle hangar could be found just below that. Design-wise, "Every expense was spared" according to one of Engineer Nog's Starfleet Academy professors. (DS9 novel: Force and Motion)

A Helios-class hub appeared as a variation of the Watchtower-class starbases, and could be changed to have a thinner stalk and a stack of three saucer sections, like Jupiter Station. (SCE eBook: Distant Early Warning, VOY episode: "Life Line")

Jupiter Station itself featured two mushrooms, with a stack of three saucer sections each, tethered together and placed in a planetary orbit. (VOY episode: "Life Line")

Scores of Helios-class hubs were constructed by the Federation when the second great age of exploration began between 2300 and the 2310s decade. They were dropped off as pickets for a fleet of newly commissioned ships to refuel and resupply.

By 2386, Nog did not think that Starfleet would still use Helios stations. The Robert Hooke Research Station was an example of continued civilian usage. (DS9 novel: Force and Motion)

Known stationsEdit

Watchtower-class starbase space stations
Federation, Starfleet
(primary universe)
Fleet Setup StationStarbase 6Starbase 47 VanguardStarbase 91unnamed Watchtower class space stations

Helios-subclass: Jupiter Station (variant) • Robert Hooke Research StationSpace Station Bravo (variant)

UFP seal Starfleet Command logo
Terran Empire Starfleet
(mirror universe)
Imperial Starbase 47 Vanguard Terran Empire Logo



Space station classes of the Federation and Starfleet
Named classes E-classFleet StarbaseHelios-classK-classManheim Temporal Research FacilityNor-classR1 Investigator-classR1 Invictus-classSierra-classSigma-classUnity-classWatchtower-classZenith-class UFP seal Starfleet Command logo
Other types

Construction support stationMcKinley typeSpacedock typeStarbase 1 typeunnamed

general type

Federation advanced shipyardFederation mining stationFederation orbital processing facilityFederation phaser turretFederation relay stationFederation research facilityFederation temporal research facilityFederation sensor platformFederation science stationFederation shipyardFederation starbaseFederation torpedo turretFederation trading stationfleet stationVulcan research institute

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