PLANETARY CLASSIFICATION
Class D Planetoid
Luna
Classification:	planetoid, asteroid, moon
Age:	2–10 billion years
Diameter:	100–1,000 km
Surface:	barren, metals, nickel-iron-silicate
Atmosphere:	tenuous or none
Lifeforms:	none-known

In planetary classification, a class D planetoid is a type of planet. Planets of this type are generally smaller asteroids or moons that are locked into the gravitational pull of a larger planetary body. Class D worlds are usually composed of metals, predominantly nickel, iron and silicate. Bodies of this type generally do not support lifeforms. (ST references: Star Charts, The Worlds of the Federation; Last Unicorn RPG module: Star Trek: The Next Generation Core Game Book)

This classification was listed as class I as described in ST reference: Star Trek Maps, although the same chart was reprinted by Pocket Books in The Worlds of the Federation with the notation corrected.

Bodies of this typeEdit

• Ceres
• Earth's Moon (Sol IIIa)
• Lunar V (Bajor VIIe)
• Regula
• Ursanis II
• Weytahn
• Yonada

External linkEdit

• Class D article at Memory Alpha, the wiki for canon Star Trek.