Kuiper Belt (world)

Kuiper Belt, forming the outer fringe of the Terra System
Sol/Solomani Rim 1827
Position	Distance	Name	UWP
Primary		Sol	G2 V
10	30-100 AU	Kuiper Belt	(variable)
1	39.40AU	Orcus	YS00000-0
2	39.48AU	Pluto	F10046C-F
3	39.67AU	Ixion	Y100000-0
4	41.88AU	Salacia	Y100000-0
5	42.90AU	Varuna	YS00000-0
6	42.80AU	Quaoar	YS00000-0
7	43.22AU	Haumea	Y100000-0
8	45.60AU	Ultima Thule	YS00000-0
9	45.64AU	Chaos	YS00000-0
10	45.72AU	Varda	YS00000-0
11	67.78AU	Makemake	Y100000-0
12	539AU	Eris	Y100000-0

The Kuiper Belt is a collection of dwarf worlds and icy planetoids lying at the outer edge of the Terra system.

• The Kuiper Belt possesses a number of Trans-Neptunian Objects.
• It is the location of the Heliosphere to Heliopause to the Interstellar Medium.
• It is part of the Remote System.
• It occupies Orbits 13 to 144.
• It can extend up to two Light Weeks away from its Primary Star.

Description (Specifications)

The Kuiper Belt lies at the outer edge of the Terra system. It contains a few thousand bodies with diameters in excess of 100 km, and an estimated trillion or more "dirty snowballs" of varying sizes, but typically with diameters of less than 10 km. As many as 1 in 6 are binary objects.

Belt Structure

The structure of the Kuiper Belt is governed by orbital resonances between its various worlds and the gas giant Neptune.

• An orbital resonance is expressed as a small integer, such as 1:2 or 2:3. In this case they describe a balanced gravitational relationship between Neptune and various Kuiper Belt objects. The integer denotes how many complete orbits of Sol, the Terra system's central star, the Kuyper Belt object will do compared to Neptune.

Inner Belt Region

The inner part of the Kuiper Belt is considered to lie between 30 AU and 40 AU from Sol.

• Objects orbiting within this region have a 2:3 orbital resonance with Neptune. They are known as plutinos.
• Neptune, with an orbital distance of 30.1 AU from Sol, lies just within the inner edge of the Kuiper Belt.

Main Belt Region

The main part of the Kuiper Belt is considered to lie between 40 AU and 48 AU from Sol.

• Objects orbiting within this region are known as cubewanos. The name derives from QB1 ("cue bee one"), short for (15760) 1992 QB1, the first such object discovered in the region. QB1 is now known as Albion: it is a 108 km body composed of silicates and ices with a mean orbital distance of 43.7 AU.
• The majority of Kuiper Belt objects are concentrated within this region.
  • The main part of the belt is generally accepted to extend from the 2:3 mean-motion orbital resonance region with Neptune (the orbit of Pluto, at approximately 40 AU) to the 1:2 resonance region (beyond the orbit of Chaos, at roughly 48 AU).

Outer Belt Region

The outer part of the Kuiper Belt is considered to lie between 48 AU and 100 AU from Sol, though the orbits of some objects take them far beyond this limit. It is referred to as the Scattered Disc region.

• 48 AU (the 1:2 orbital resonance region with Neptune) marks a distinct boundary in the structure of the belt, where object sizes dramatically reduce. This is known as the Kuiper Cliff.
• Objects orbiting within this region are known as twotinos. The name is a play on plutino and refers to their 2:1 orbital resonance with Neptune.

Inner Belt Objects

Objects orbiting within the Inner Belt region – with mean orbital distances of between 30 AU and 40 AU from Sol, within the mean orbit of Pluto – are referred to as plutinos.

Orcus

Orcus (UWP Y100000-0) is a plutino Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 39.4 AU (5.9 billion km) and has an orbital period of 247 years 106 days. Its rotation period is 13.2 hours. Orcus has a diameter of 910 km, a mean density of 1.5 g/cm³, and a surface gravity of 0.019 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -241°C. Orcus is a rugged, pale reddish, generally spherical body with a light degree of cratering. It has a relatively high albedo.

• Orcus is in 2:3 orbital resonance with Neptune.
• Orcus has a high orbital eccentricity. At perihelion it lies at 30.73 AU from Sol and at aphelion it lies at 48.07 AU.
• Orcus's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 20.6°.
• Orcus has a differentiated internal structure consisting of a core composed of silicates, crystalline water-ice (H₂O), crystalline methane-ice (CH₄), and frozen nitrogen (N₂). Its crust consists of a mixture of water, methane and nitrogen ices containing substantial traces of tholins.

Vanth

Vanth (UWP YS00000-0) is the only satellite of Orcus and is classified as a worldlet. It orbits its parent world at a mean separation of 9.3 diameters (9,000 km) and has an orbital period of 9.6 days. It is tidally locked to Orcus. Vanth has a diameter of 280 km, a mean density of 1.5 g/cm³, and a surface gravity of 0.0006 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -242°C. Vanth is a rugged, pale grey-red, irregularly shaped spheroid with little cratering.

• Vanth is composed of silicates, crystalline water-ice (H₂O) and crystalline methane-ice (CH₄) and contains relatively high levels of tholins.

Pluto

Pluto

Charon

Pluto (UWP F20046C-F N Px Rs) is a large plutino Kuiper Belt object and the namesake of its type: it is classified as a worldlet. It and its family of satellites orbit Sol at a mean distance of 39.48 AU and have an orbital period of 247 years 344 days.

• Pluto is in 2:3 orbital resonance with Neptune.
• Pluto has a high orbital eccentricity. At perihelion it lies at 29.7 AU from Sol (within the orbit of Neptune), and at aphelion it lies at 49.3 AU.
• Pluto's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 17°.
• Pluto is the location of an Imperial Navy base.
• Pluto is the site of a prison.
• Pluto is the location of a research facility.
  • Popular opinion holds that Pluto is an Ancients site.
• Any approach to Pluto closer than 1 AU (150 million km) is expressly forbidden.

Satellites

Pluto has one major satellite:

• Charon

It has four minor satellites:

• Styx
• Nix
• Kerberos
• Hydra

Ixion

Ixion (UWP Y100000-0) is a plutino Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 39.67 AU (5.9 billion km) and has an orbital period of 249 years 67 days. Its rotation period is 12.4 hours. Ixion has a diameter of 801 km, a mean density of 1.5 g/cm³, and a surface gravity of 0.0041 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -244°C. Ixion is a rugged, pale reddish, generally spherical body with a light degree of cratering. It has a relatively high albedo.

• Ixion is in 2:3 orbital resonance with Neptune.
• Ixion has a high orbital eccentricity. At perihelion it lies at 30.08 AU from Sol and at aphelion it lies at 49.26 AU.
• Ixion's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 19.5°.
• Ixion has a differentiated internal structure consisting of silicates, crystalline water-ice (H₂O), crystalline methane-ice (CH₄), and frozen nitrogen (N₂). The crust is composed of methane, water and nitrogen ices and contains significant quantities of tholins, which give it its red tint.

Main Belt Objects

Objects orbiting within the Main Belt region – with mean orbital distances of between 40 AU and 48 AU from Sol – are referred to as cubewanos.

Salacia

Salacia (UWP Y100000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 41.88 AU (6.3 billion km) and has an orbital period of 270 years 357 days. Its rotation period is 6.1 hours. Salacia has a diameter of 854 km, a mean density of 1.29 g/cm³, and a surface gravity of 0.008 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -238°C. Salacia is a rugged, mottled grey sphere with a moderate degree of cratering.

• Salacia has a high orbital eccentricity. At perihelion it lies at 37.27 AU from Sol and at aphelion it lies at 46.48 AU.
• Salacia's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 24°.
• Salacia is composed of a mixture of silicates, crystalline water-ice (H₂O) and crystalline methane-ice (CH₄). The crust consists of a mixture of methane and water ices containing trace amounts of tholins.

Actaea

Actaea (UWP YS00000-0) is the only satellite of Salacia and is classified as a worldlet. It orbits its parent world at a mean separation of 6.6 diameters (5,600 km) and has an orbital period of 5.5 days. Actaea has a diameter of 286 km, a mean density of 1.2 g/cm³, and a surface gravity of 0.0005 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -239°C. Actaea is a rugged, pale grey-red, irregularly shaped spheroid with little cratering.

• Actaea is largely composed of crystalline water-ice (H₂O), mixed with smaller quantities of silicates. Crystalline water-ice forms the predominant surface material.

Quaoar

Quaoar (UWP Y100000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 42.8 AU and has an orbital period of 287 years 194 days. Its rotation period is 17.7 hours. Quaoar has a diameter of 1,074 km, a mean density of 2.2 g/cm³, and a surface gravity of 0.034 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -231°C. Quaoar is a rugged grey sphere with a moderate degree of cratering.

• Quaoar has a near-circular orbit and is not significantly perturbed by Neptune.
• Quaoar has a relatively high orbital eccentricity. At perihelion it lies at 41.98 AU from Sol and at aphelion it lies at 43.62 AU.
• Quaoar's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 8°.
• Quaoar has a differentiated internal structure consisting of a small rocky core overlaid by a thin mantle composed of silicates, crystalline methane-ice (CH₄) and crystalline water-ice (H₂O). The crust consists of a mixture of methane and water ices containing trace amounts of tholins.

Weywot

Weywot (UWP YS00000-0) is the only satellite of Quaoar and is classified as a worldlet. It orbits its parent world at a mean separation of 13.5 diameters (14,500 km) and has an orbital period of 12.5 days. Its rotation period is 8.8 hours. Weywot has a diameter of 74 km, a mean density of 1.9 g/cm³, and a surface gravity of less than 0.001 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -233°C. Weywot is a tiny, rugged grey spheroid with a moderate degree of cratering.

• Weywot is largely composed crystalline water-ice (H₂O) mixed with smaller quantities of silicates. Crystalline water-ice forms the predominant surface material.

Varuna

Varuna (UWP YS00000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 42.95 AU (6.4 billion km) and has an orbital period of 285 years 165 days. Its rotation period is 6.4 hours. Varuna has a diameter of 668 km, a mean density of 0.99 g/cm³, and a surface gravity of 0.005 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -244°C. Varuna is a rugged, uniformly red-grey, elongated spheroid with a light degree of cratering.

• Varuna has a near-circular orbit. It is in a 2:3 orbital resonance with Neptune.
• Varuna has a high orbital eccentricity. At perihelion it lies at 40.74 AU from Sol and at aphelion it lies at 45.16 AU.
• Varuna's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 17°.
• Varuna is largely composed of crystalline water-ice (H₂O), crystalline methane-ice (CH₄) and frozen nitrogen (N₂) mixed with smaller quantities of silicates. Crystalline water-ice with significant traces of tholins forms the predominant surface material.

Haumea

Haumea (UWP Y100000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 43.22 AU (6.5 billion km) and has an orbital period of 285 years 165 days. Its rotation period is 3.9 hours. Haumea has a diameter of 1,630 km, a mean density of 1.89 g/cm³, and a surface gravity of 0.04 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -241°C. Haumea is a rugged, mottled grey, very oblate spheroid with a moderate degree of cratering.

• Haumea is in a 7:12 orbital resonance with Neptune.
• Haumea has a high orbital eccentricity. At perihelion it lies at 34.95 AU from Sol and at aphelion it lies at 51.48 AU.
• Haumea's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 28°.
• Makemake has a differentiated internal structure consisting of a small rocky core overlaid by a thin mantle composed of silicates, crystalline methane-ice (CH₄) and crystalline water-ice (H₂O). The crust consists of a mixture of methane and water ices containing trace amounts of tholins.
  • Haumea's unusual shape and rapid rotation are considered to be the result of an ancient collision with another Kuyper Belt object.

Ring System

Haumea's ring system (UWP YR00000-0) lies at a mean distance of 2,300 km from Haumea. It forms a narrow torus around its parent world and has a mean width of 40 km. It is composed of tens of thousands of irregular fragments of dust, silicates, and crystalline water-ice (H₂O) with diameters ranging from a few millimeters to tens of centimeters.

• The ring system objects are considered to be the remnants of an ancient collision between Haumea and another Kuyper Belt object.
• The rings are relatively dark in comparison to Haumea and its satellites.

Namaka

Namaka (UWP YS00000-0) is the inner satellite of Haumea and is classified as a worldlet. It has an elliptical orbit around its parent world with a mean separation of 15.7 diameters (25,600 km) and an orbital period of 18 days. It is tidally locked to Haumea. Namaka has a diameter of 170 km, a mean density of 1.5 g/cm³, and a surface gravity of 0.0016 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -242°C. Namaka is a tiny, rugged, pale grey irregular spheroid with little cratering.

• Namaka is largely composed crystalline water-ice (H₂O), mixed with smaller quantities of silicates. Crystalline water-ice forms the predominant surface material.
• Namaka is considered to be a remnant of an ancient collision between Haumea and another Kuyper Belt object.

Hi'iaka

Hi'iaka (UWP YS00000-0) is the outer satellite of Haumea and is classified as a worldlet. It orbits Haumea at a mean distance of 30.7 diameters (49,900 km) and has an orbital period of 49 days 3 hours. Its rotation period is 9.8 hours. Hi'iaka has a diameter of 320 km, a mean density of 1.5 g/cm³, and a surface gravity of 0.0031 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -240°C. Hi'iaka is a rugged, pale grey irregular spheroid with little cratering.

• Hi'iaka is largely composed crystalline water-ice (H₂O), mixed with smaller quantities of silicates. Crystalline water-ice forms the predominant surface material.
• Hi'iaka (which has a very rapid rotation) is considered to be a remnant of an ancient collision between Haumea and another Kuyper Belt object.

Ultima Thule

Ultima Thule

Ultima Thule (UWP YS00000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 44.58 AU (6.7 billion km), it has an orbital period of 298 years and a rotation period of 15 hours. The tiny world is a contact binary with a total length of 31 km and consists of two joined bodies, 19 km Ultima and 14 km Thule. It has a mean density of approximately 1.3 g/cm³ and a surface gravity of less than 0.001 G. The world is geologically inert. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -240°C. Ultima Thule is a red-tinged two-lobed object with a moderate degree of cratering.

• It may have a weak internal heat source created by the radioactive decay of radionuclides.
• Ultima Thule is composed of mostly amorphous water ice (H₂O), silicates, and frozen methane (CH₄). The icy surface material contains significant traces of tholins.

Chaos

Chaos (UWP YS00000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 45.6 AU (6.8 billion km), it has an orbital period of 309 years 336 days and a rotation period of 3 days 23 hours. Chaos has a diameter of 290 km, a mean density of 1.6 g/cm³ and a surface gravity of 0.0015 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -245°C. Chaos is a very rugged, reddish colored spheroid with a light degree of cratering.

• Chaos's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 12°.
• Chaos has a high orbital eccentricity. At perihelion it lies at 40.92 AU from Sol and at aphelion it lies at 50.27 AU.
• Chaos is largely composed crystalline water-ice (H₂O), crystalline water-ice (CH₄), and frozen nitrogen (N₂), mixed with smaller quantities of silicates. The icy surface material contains significant traces of tholins.

Varda

Varda (UWP YS00000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 45.64 AU (6.8 billion km), it has an orbital period of 308 years 102 days and a rotation period of 6 hours. Eris has a diameter of 705 km, a mean density of 1.27 g/cm³ and a surface gravity of 0.0034 G. The world is geologically inert. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -231°C. Eris is a rugged, red-tinged pale grey sphere with a moderate degree of cratering.

• Varda has a high orbital eccentricity. At perihelion it lies at 39.17 AU from Sol and at aphelion it lies at 52.1 AU.
• Varda's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 21°.
• Varda is largely composed crystalline water-ice (H₂O), crystalline water-ice (CH₄), and frozen nitrogen (N₂), mixed with smaller quantities of silicates. The icy surface material contains significant traces of tholins.

Ilmarë

Ilmarë (UWP YS00000-0) is the only satellite of Varda and is classified as a worldlet. It orbits its parent world at a mean separation of 6.8 diameters (4,800 km) and has an orbital period of 5 days 18 hours: Ilmarë is tidally locked to Varda. Ilmarë has a diameter of 361 km, a mean density of 1.2 g/cm³ and a surface gravity of less than 0.0031 G. The world is geologically inert. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -231°C. Eris is a rugged, red-tinged pale grey sphere with a moderate degree of cratering.

• Ilmarë is largely composed crystalline water-ice (H₂O) mixed with smaller quantities of silicates. Crystalline water-ice forms the predominant surface material.

Makemake

Makemake (UWP Y100000-0) is a cubewano Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 45.72 AU (6.8 billion km) and has an orbital period of 309 years 35 days. Its rotation period is 22.5 hours. Makemake has a diameter of 1,420 km, a mean density of 1.7 g/cm³, and a surface gravity of 0.051 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -239°C. Makemake is a rugged, reddish-grey sphere with a moderate degree of cratering and a high albedo.

• Makemake has a high orbital eccentricity. At perihelion it lies at 38.59 AU from Sol and at aphelion it lies at 52.84 AU.
• Makemake's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 29°.
• Makemake has a differentiated internal structure consisting of a rocky core and a crust composed mainly of methane ices (CH₄), nitrogen ices (N₂), and ethane ices (C₂H₆), with a thin covering of fine dust. Its reddish appearance is due to strong concentrations of tholins within the hydrocarbon surface material.

S/2015 (136472) 1

S/2015 (136472) 1 (more commonly called MK 2) (UWP YS00000-0) is the only satellite of Makemake and is classified as a worldlet. It orbits its parent world at a mean separation of 14.8 diameters (21,100 km) and has an orbital period of 12 days. MK 2 has a diameter of 175 km, a mean density of 1.6 g/cm³, and a surface gravity of 0.0012 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -240°C. MK 2 is a tiny rugged grey sphere with a moderate degree of cratering.

• MK 2 is composed of a mixture of silicates and crystalline water-ice (H₂O).

Outer Belt Objects

The outer part of the Kuiper Belt is called the scattered disc region and is considered to lie between 48 AU and 100 AU from Sol. It contains a much lower density of large objects relative to the main region of the belt. Objects located within the outer region are referred to as twotinos.

• The outer belt region is considered to start at the point where there is a 1:2 orbital resonance between Neptune and Kuiper Belt objects.
  • Within this region the sizes of Kuiper Belt objects reduces dramatically: this is known as the Kuiper Cliff.

Eris

Eris (UWP Y100000-0) is a twotino Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 67.78 AU (10.1 billion km), it has an orbital period of 561.4 years and a rotation period of 8 hours. Eris has a diameter of 2,326 km, a mean density of 2.52 g/cm³ and a surface gravity of 0.084 G. The world is geologically inert. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -231°C. Eris is a rugged, red-tinged pale grey sphere with a moderate degree of cratering.

• Eris has a high orbital eccentricity. At perihelion it lies at 37.91 AU from Sol and at aphelion it lies at 97.65 AU.
• Eris's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 44°.
• Eris has a differentiated internal structure consisting of a core composed of silicates, crystalline water-ice (H₂O), crystalline methane-ice (CH₄), and frozen nitrogen (N₂). The crust is largely composed of methane, water and nitrogen ices. Its distinct reddish appearance is due to concentrations of tholins within the surface material.

Dysnomia

Dysnomia (UWP YS00000-0) is the only satellite of Eris and is classified as a worldlet. It orbits its parent world at a mean separation of 16 diameters (37,350 km) and has an orbital period of 16 days. Dysnomia has a diameter of 685 km, a mean density of 1.8 g/cm³, and a surface gravity of 0.0014 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -237°C. Dysnomia is a tiny, rugged, dark grey sphere with a moderate degree of cratering.

• Dysnomia is composed of a mixture of silicates and crystalline water-ice (H₂O).

Sedna

Sedna (UWP Y100000-0) is a scattered disc Kuiper Belt object and is classified as a worldlet. It orbits Sol at a mean distance of 506 AU (75.7 billion km), it has an orbital period of 11,408 years and a rotation period of 10.3 hours. Sedna has a diameter of 1,180 km, a mean density of 2.01 g/cm³ and a surface gravity of 0.045 G. The atmosphere is rated as Vacuum. The world has no hydrosphere. Mean surface temperature: -240°C. Sedna is a rugged, reddish colored sphere with a moderate degree of cratering.

• Sedna has a very high orbital eccentricity. At perihelion it lies at 76.09 AU from Sol and at aphelion it lies at 936 AU (approximately 0.015 light-years).
• Sedna's orbit is out of alignment with the plane of the Solar system: its orbit is inclined at an angle of 12°.
• Sedna has a differentiated internal structure consisting of a rocky core and a crust composed of frozen methane (CH₄) and methanol (CH₃OH), with a very thin covering of fine dust. Its distinct reddish appearance is due to the high concentrations of tholins within the hydrocarbon ices that form the surface.

Native Lifeforms

No body within the Kuiper Belt is known to have native life. However, Pluto is believed to have subsurface oceans lying tens or hundreds of kilometers below the frozen surface of the world. These deep seas are formed of water (H₂ and kept liquid by the intense pressure, tidal forces generated by Charon, and by the decay of radioactive thingys deep within its core. Similar marginal environments have proven to be suitable for exotic lifeforms throughout Charted Space, and there is reason to suspect that Pluto continues this pattern.

History & Background (Dossier)

Pluto was the first Kuiper Belt object to be discovered, in the year -2592, by observations using an Optical Telescope from the surface of Terra. A significant surface feature, the Tombaugh Planitia, is named for the astronomer that first identified the world.

References & Contributors (Sources)

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• Traveller Wiki Editorial Team
• Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science