Duo was a star system, located in 23rd century Federation space in the galaxy's Alpha or Beta Quadrants, in the vicinity of the Twilight Nebula.

History and specifics

It was located within the Organian Treaty Zone in the middle of the Twilight Nebula sector, less than two parsecs from the border to the Klingon Empire and less than a parsec from the Twilight Nebula. (FASA RPG module: Trader Captains and Merchant Princes, 2nd edition)

The Duo system's orbit was the location of a number of worlds, including third planet Duo III, site of a Federation colony. (FASA RPG module: Trader Captains and Merchant Princes, 1st edition)

It was mapped at coordinates 2.11S 3.27E. (FASA RPG module: The Federation)

System makeup

Duo system primary star

• Duo I
• Duo II
• Duo III

Appendices

Connections

Twilight Nebula sector
Bonanza (Aegis Aquila system) • Dalanda V (Dalanda system) • D'Livian VI (D'Livian system) • Duo III (Duo system) • Dvlaak • Enid VI (Enid system) • Facet • Katan III (Katan system) • Keef • Klaan • Klest • Klevaan • RRiss • SSleen • Torrt VI (Torrt system) • T'Rillan (T'Rill system) • Twilight Base (Draco Omega 371 system) • Twilight Nebula

Alpha and Beta Quadrant stars and star systema (D)
Daa'V • Daffodon • Dagem • Dahleb • Dajera • Dak-Alpha • Dakiak • Dalanda • Daled • Damana • Damir • Damocles • Danae Victoria • Danara 5986 • Dangasi • Danian • Daniir • Dankon • Danor Tor • Dantar • Dante • Dante Maxima • Danton • Danula • Danzan • Daran • Dargesi • Dark Horse • Dark Maw • Daro • Daros • Dar'shinta • DaSqor • Dastera • Dathan• Dauouuy • Davidul • Daxura • DD Tauri • Debali • Debudex • Dedderac • Dedira • De Gaulle • Dekian • Delanath • Delanos • Delior • Delius • Delkon • Dellaton • Delleren • Delmas • Delos • Delos • Delphi • Delta (Delta Principius/Delta Triciatu) • Delta Arietis • Delta Arlana • Delta Cassiopeiae • Delta Cyanna • Delta Darius • Delta Feronis • Delta Fuego • Delta Gamma • Delta Gamma • Delta Ganymede • Delta Gorgoni • Delta Indus • Delta Khinah • Delta Lyra • Delta Majoris • Delta Neezott • Delta Omega • Delta Principius/Delta Triciatu • Delta Serpentis • Delta Sigma • Delta Theta • Delta Trimute • Delta Vara • Delta Vega • Delta Zeta 785 • Demeter • Demos • Demostonies • Denab • Denem • Denkir • Denocet • Denro • DepIp • Dep'reth • Derenja • Deriben • Der'neth • Deren'dex • Deresi • Derin • Derix • Dero • Detok • Detria • Devara • DevIygh • Devnar • Devona • Dex Daraan • Dexel • Dextera 273 • Deznah • Dhum'Qha • Dhu'Qua • Diad • Diamana • Diana • Diaso • Didacti • Didi • Diehr • Digifal • Dillia • Dilyut • Dimonra • Dimor • Dim'pel • Dinar • Dinira • Din'tara • DIpeyj • Dira Tor • Diren • Dirmasi • Dis • Diskon • Dis'reth • Disuz • Dixiak • DIyn'I • Dizok • D'Livian • DoH • DoHInup • Dokudex • Dolcan • Dolron • Doma'tara • Domra • Donovan's Star • Don'tara • Don'zali • Doona • Dorala • Dorasi • Dorella • Doria Daraan • Doril • Dorox • Doska • Dothor • Douruine • DovID • Doxiez • Dozox • Drago • Drakam • Draken • Dramia • Drana'tara • Dranvedis • Draomn • Dravek • Draxis II • Drena • Dresebis • Drexler • Dre'zek • Drid • Drinen • Drixane • Dro'neth • Du'chigh Doghiq • Dundee • Dulira • Dultesi • Duo • Duosetel • Duraiana • Durala • Duran • Durandal • Dured • Durel • Durusi • Duska'had • Dutton • Duval • Duviniax • Duwamish • Dylonian
Alpha Quadrant stars and systems (D)	Dannus • Davon • Delavi • Delkar • Delta Aquilae • Delta Aurigae • Delta Cerberus • Delta Cygni • Delta Herculis • Delta Pegasi (Delta Pegasi A • Delta Pegasi B) • Delta Scorpii • Delta Ursae Majoris • Denab • Deneb systems: (Deneb • Deneb Kaitos • Deneb el Okab) • Dengella • Denobula Triaxa • Devidian • Dnoces • Doltec • Dopteria • Dorvan • Draco Minora • Draco Omega 371 • Draco Ursula • Draconis • Draygo • Draylon • Dreon • Dubhe
Beta Quadrant stars and systems (D)	Da'Kel • Danteri • Dasha Verta • Davlos • Dayos • D'deridex • Delphic • Delta Canaris • Delta Corvi • Delta Dorado • Delta Eridani • Delta Geminorum • Delta Hydri • Delta Leonis • Delta Leporis • Delta Orcus • Delta Orionis • Delta Pavonis • Delta Phoenicis • Delta Rana • Delta Velorum • Denebola • Deneva • Denius • Derex • Desotriana • Dessica • Devolin • Devoras • Devorren • Devron • Dewa • Dimorus • Dinasia • D'Korin • Donatu • Drovna • Dumok'azen

Background

Its coordinates from The Federation would place it in treaty boundary quadrant 3, a.k.a. Starfleet Intelligence sector 3, the region containing the Triangle sector. The later-produced sourcebook apparently retconned its position to quadrant 4/sector 4's Twilight Nebula sector for gameplay.

References

• FASA RPG module: Trader Captains and Merchant Princes, 1st edition
• FASA RPG module: The Federation
• FASA RPG module: Trader Captains and Merchant Princes, 2nd edition