- For other uses, see Cygnus.
The Cygnus class was a 25th century Federation starship type, a tier 6-rated battlecruiser class derived from the 24th century Andromeda-class exploration cruiser, in Starfleet and Khitomer Alliance service from the 2410s decade. In the mirror universe, ships of this class served in the Terran Empire's Imperial Starfleet. (STO website: Reflections: The Agile Classics Ship Bundle!)
History and specifics[]
Cygnus class variants.
In the primary universe, the Andromeda-class cruiser USS Pegasus underwent a refit under the guidance of the Allied Cooperative Starship Development Board (ACSDB). (STO website: Reflections: Remastering 25th Century Starships)
These modifications also applied to the USS Cygnus, which lent its name to the class. Its Terran counterpart was the ISS Cygnus. (STO website: Shadow's Advance: The 12th Anniversary Terran Bundle!)
The ISS Cygnus in 2411.
In the mirror universe, the Advanced Starship Design Bureau issued a performance report about the Cygnus-class ISS Pegasus and other recently refitted ships to Imperial Starfleet on stardate 88168.8 in the year 2411. (STO website: Reflections: Remastering 25th Century Starships)
As a variant of the Andromeda class, which itself was derived from the 24th century Galaxy-class, starship sections among the Galaxy-derived classes were interchangeable. (STO website: Shadow's Advance: The 12th Anniversary Terran Bundle!)
The Sirius-class was the three-nacelled dreadnought cruiser subclass of the Cygnus. The Sirius combined the Cygnus components with the Yamato-class spaceframe. The ISS Venture was a ship of this class. (STO - Cardassian Struggle mission: "Counterpoint")
Known ships[]
Mirror universe[]
Appendices[]
Connections[]
| Ships named Cygnus | ||
|---|---|---|
| Federation Starfleet (primary universe) |
USS Cygnus (NCC-617, Hermes-/Cygnus-class scout) • USS Cygnus (NCC-92190, Cygnus-class) • see also: Cygnus-class (scout) • Cygnus-class (battlecruiser) |  
|
| Terran Empire, Starfleet (mirror universe) |
ISS Cygnus (NCC-92190, Cygnus-class) |  
|
| Romulan Star Empire, Star Navy | RIS Cygnus (Snipe-class) • RIS Cygnus (Shrike-class) | 
|
| 25th century Andromeda-class derived starships | |||
|---|---|---|---|
| Federation, Starfleet (primary universe) |
Andromeda-class cruiser | USS Andromeda • USS Birmingham | 
|
| Cygnus-class battlecruiser | USS Cygnus • USS Pegasus | ||
| Lafayette-class recon destroyer | USS Lafayette | ||
| Monitor-class miracle worker carrier | USS Monitor | ||
| Sirius-class command dreadnought cruiser | USS Sirius | ||
| Sutherland-class advanced research vessel | USS Almagest • USS Chandrasekhar • USS Hypatia • USS Ibn al-Haytham • USS Huygens • USS Sutherland | ||
| Yamato-class dreadnought cruiser | USS Madrid • USS Yamato | ||
| Terran Empire, Starfleet (mirror universe) |
Andromeda-class exploration cruiser | ISS Andromeda |
|
| Cygnus-class battlecruiser | ISS Cygnus • ISS Pegasus | ||
| Monitor-class carrier | ISS Monitor | ||
| Sirius-class dreadnought | ISS Sirius • ISS Venture | ||
| Sutherland-class science vessel | ISS Sutherland | ||