Category: Class M Planets

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Class M
First Appearance TOS 05 (8 Sep 1966)
Terrestrial / Minshara class[1]
Age 3-10 billion years[2]
Diameter 10,000-15,000km[2]
Location Ecosphere[2]
Surface Surface water abundant; if water or ice covers more than 80% of surface, planet is considered Class O or P[2]
Atmosphere Nitrogen, oxygen,[3] trace elements[2]
Lifeforms Extensive vegetation, animal life, humanoids[2]

Notes and References