Methuselah

The eighth of Tefireth’s eleven planets, Methuselah orbits the brown dwarf at a mean distance c. 6.0 million km. Methuselah is one of the three potentially habitable planets of Tefireth with a diameter of c. 3,420 km. The planet’s rotational period is c. 18 hours and revolution period is c. 122 standard days. Like Jaredii and Mahalel, Methuselah has a very thin atmosphere consisting mainly of carbon dioxide. Because of the thin atmosphere, the planet also has an extreme day-to-night temperature range, resulting from its thin atmosphere, from about 272°A at noon to about 153°A at midnight; however, the high daytime temperatures are confined to less than one meter above the surface.

Pronunciation & Astronomical Name
(Måh•thüs´•lå) aka Tefireth 8