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Four Letter Code ANDR
Federation Status Member
Planet of Origin Andoria (Epsilon Indii)
Encountered First encountered by Enterprise (NX-01) (ENT: The Andorian Incident)
Current Tech Level N
List of Named Andorians

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Andorian/Culture Andorian/Food and Beverages Andorian/Gender and Reproduction Andorian/Graalen Andorian/Physiology and Psychology Andorian/Psychology and Behaviour Andorian/Races Andorian/Religion and Spirituality Andorian/Society and Social Structure Non-canon Andorian

The Andorians are a humanoid species from the moon Andoria, homeworld of the Andorian Empire, and one of the founding members of the United Federation of Planets. The Andorian people have white hair, blue skin and 3 to 4 inch antenna sticking up out of their heads. On the average they tend to be a very tall, slim race. They tend to be 1.7 to 2.1 meters tall.


Andoria is a frigid moon in orbit of the gas giant Andor V.

Andoria is a frigid P-Class moon that orbits the fifth planet (a ringed gas giant) in the Andorian system. Approximately 85% of the moon's surface is covered in water, and the moon is characterized by two large ice caps at its poles. These are much bigger than those found on Earth.

Andoria is one of the five founding worlds of the United Federation of Planets. It is in close proximity to Vulcan, with whose people the Andorians endured great conflict for many years. Andoria forms the capital of the Andorian Empire, and is home to the Andorians and their offshoot species, the Aenar. Andoria is relatively close to the Sol system.

Andoria is also referred to as Andor, both by Andorians and off-worlders.


Andorian history is characterized by periods of extreme turbulence, which reflects the people's tendencies towards violence. Records from before 1692 (Earth-Gregorian) may be of limited value, as nearly all of Andoria's historical documents were destroyed during periods of global civil war.



Date Event
Pre-1284 Andoria is torn by planetary civil war. Clans form alliances, attack other clans, then break allegiance and fight each other. Chaos ensues.
1284 A clan lord, Krotus, succeeds in conquering Andoria by defeating the most powerful opposing clans before turning them against the weaker remnants. This act unites Andoria and puts an end to the hundreds of years of bitter fighting. Krotus ushers in an industrial age. Andoria begins to prosper.
1332 Krotus is assassinated by his daughter. She seizes control of his clan, but is by no means as successful at maintaining control of the planet. While technological advances continue to be made, the planet's political situation begins to rapidly destabilise.
1597 Disputes over the Tharan Mountains trade route ignite hostilities between warlords, resulting in 100 years of bitter warfare that destroys nearly everything the Andorians had built. This came to be known as the Time of Lament.
1692 Lor’Vela, a 14 year-old girl, slays her mother and takes control of her keth in response to a fever-induced dream. She calls together the leaders of the clans to the Council of Tarsk, and persuades them to forego attacks on each other in an attempt to restore Andor to its former glory. The government she set up during this time remains in effect even to this day.
c.1910 The Vulcans make first contact with the Andorians, whom they believe show promise despite their tendency towards strong emotion. The Andorians quickly reject their offers of aid and collaboration due to what they perceived as overly meddlesome behaviour.
c.1950 The Andorians and Vulcans begin a border dispute that will last for the next 200 years. The Vulcans are unsettled by neighbours that they consider to be barbaric and casually violent. The Andorians believe that the an invasion may be imminent, and rely on their ability to stage a massive counterattack as a deterrant.
c.2050 Andorians terraform Weytahn, a class-D planetoid, that lies in a strategic location close to the Vulcan homeworld. When the Vulcan demand to inspect the colony to ensure there are no military installations on the surface is denied, the Vulcans decide to forcibly evacuate the planet. The dispute rages on for many years.
2097 A treaty is signed in which the Vulcans claim Weytahn, and rename it Paan Mokar. A surveillance sattelite is placed in orbit to monitor the planet's surface.
2104 Andorians discover a hidden settlement of Aenar located below the Issan ice cap, also referred to as the Northern Wastes. Until this time, the existence of the telepathic Aenar, a subspecies of Andorians was thought to have been a myth.
2118 Andorians Develop warp travel.


An interior view of the covert Vulcan monitoring station at P'Jem.
The Vulcan fleet engages the Andorians at the Battle of Andoria.
Jonathan Archer forms an alliance between the Andorians and three other races. This foreshadows the Coalition of Planets.
The signing ceremony for the Coalition of Planets.
The founding ceremony for the United Federation of Planets.
Date Event
2151 Andorians make first contact with Humans at the Vulcan sanctuary of P'Jem. While hostilities arise in the first instance, Captain Jonathan Archer's involvement in exposing a secret Vulcan listening post ingratiates him with Andorian Commander Shran.
2151 Commander Shran saves the human Captain Jonathan Archer from rebel forces on the planet Coridan, despite Vulcan interference almost compromising the operation.
2152 Starfleet Captain Jonathan Archer mediates negotiations that lead to a ceasefire between Vulcan and Andorian forces on the colony world of Weytahn, despite resistance from both sides.
2153 An Andorian vessel under the command of Shran, the Kumari, enters the Delphic Expanse in search of the starfleet ship, Enterprise. On learning that the Xindi are developing a super-weapon that is intended to destroy Earth, the Andorians attempt to harness the weapon to use in their own defense force.
2153 The Vulcan High Command begins plans to invade Andoria.
2154 The Vulcan High Command authorizes a fleet of Vulcan ships amassed near the Regulus system to open fire on an Andorian Task Force. The attack, which had been engineered through Romulan interference, became known as the Battle of Andoria.
2154 After the Vulcan High Command is dissolved and replaced by a new regime, the Vulcans enter into a more peaceful stance with the Andorians. The Cold War is finally over.
2154 The Andorian Empire is among the galactic powers involved in preventing the destabilization of their region of space by a Romulan drone-ship. The Romulans had been using an Aenar to pilot their vessel by telepresence to prevent the Vulcans from being able to make visual contact.
2155 Formation of the Coalition of Planets, an agreement of mutual defense and co-operation between the Andorians, Tellarites, Vulcans and Humans.
2156 Andoria becomes involved in the Romulan-Earth war as a member of the Coalition of Planets.
2160 The Romulans are routed at the Battle of Cheron. This leads to the establishment of the Romulan Neutral Zone, an area of space into which neither side may cross lest it be considered an act of war.
2161 The Coalition of Planets is consolidated to become the United Federation of Planets.
2164 Captain Jonathan Archer is inducted as an honorary member of the Andorian Imperial Guard by Shran
2169 Jonathan Archer becomes the Federation Ambassador to Andoria.
2230 The Atlin Zoological park is founded. The zoo is said to contain more than 500 different animal species from many different Federation worlds.
2247 Andorian Captain Igrilan Kor begins service on the U.S.S. Eagle, an all Andorian-crewed starship. The crew receives more decorations and awards than any other in the fleet.
2268 Andorian Ambassador Shras attends the Babel Conference, and supports Coridan's entry into the United Federation of Planets.
2286 Andorians now hold two seats on the Federation Council, more than ever before.


Many Andorian cities are subterranean, using geothermal energy to warm them in order to make habitation more comfortable. They connected by thousands of kilometers of ice tunnels. The surface is referred to as bracingly cold, even by the Andorians themselves, as the temperature only ever rises above zero degrees centigrade during rare heatwaves. Scientists theorise that it was in volcanic rifts, and in underground pockets near the planet's core that temperatures were high enough to sustain the origins of life.

There are 4 continents on Andoria, Issa (Northern Ice-Cap), Ka’thela, Tlanek (Southern Ice-Cap) and Voral. Ka’thela and Voral are connected by the Tharan Mountains.

Lor'Tan is the largest city on Andoria, although its administrative capital is Laikan. Borders between countries do not exist, instead various areas are controlled by different keth, similar to a tribal territorial system.

Andorian Landmarks

  • The Andorian Academy is considered one of the foremost educational institutions for artists within the entire Federation.
  • The Wall of Heroes is a place on Andoria where fallen members of the Imperial Guard can be honoured by depositing a vial of their blood.
  • The Andorian Mountains are considered to be a place of outstanding natural beauty within the galaxy, and many newlywed couples visit them as a honeymoon location.


  • The Andorian Amoeba holds particular scientific interest due to its somewhat unique reproduction system. Through fusing with another single cell organism, the amoeba produces a completely new species.
  • Andorian Bulls are known for their extremely aggressive dispositions.
  • Andorian Redbats are considered by some to be a great delicacy.
  • Andorian tuber roots are extremely high in calorific content. As such they make ideal additions to emergency provisions.
Andorian Ice Bores.
  • In the polar regions of Andoria, Ice Bore swarms often congregate. These worms are able to produce heat internally through a chemical reaction, and are harvested by the Aenar for worldwide distribution.
  • Sharing a similarity with horses on Earth, Zabathu are often used as mounts by Andorian riders.


  • Star Trek: Enterprise ("The Andorian Incident", "Shadows of P'Jem", "Cease Fire", "Twilight", "Proving Ground", "Countdown", "Zero Hour", "Kir'Shara", "Babel One", "United", "The Aenar", "In a Mirror, Darkly", "In a Mirror, Darkly, Part II", "Demons", "Terra Prime", "These Are the Voyages...")
  • Star Trek: Deep Space Nine ("Prodigal Daughter")
  • Memory Alpha (various pages)
  • Memory Beta (various pages)
  • Andor: Paradigm – Jarman, H.(Worlds of Deep Space Nine, Book 1, Pocket, 2004)
  • Avatar, Book 2 – Perry, S.D. (Pocket, 2001)
  • Section 31: Abyss – Weddle, D. & Lang, J. (Pocket, 2001)
  • Gateways: Demons of Air and Darkness, DeCandido, K.R.A. (Pocket 2001)
  • Star Trek Roleplaying Game: Aliens (Decipher, 2003)
  • Invasion!: Time’s Enemy – Graf, L.A. (Pocket 1996)
  • STARFLEET Star Trek Fan Club, Andorian Orientation College documentation.

This profile was revised by the Species Development Committee.
REV 239404.28
Please add any new information discovered during the course of a mission or shore leave.

Physiology and Psychology