When creating my Space Patrol campaign, I don't care about things like blackbody temperature or orbital period. I want a streamlined stat block for planets that I can reference at the table. I may work in elements of GURPS City Stats in the future, but for now, here's what I have on planets.
Planetary StatisticsPlanets can be described using the following statistics.
Name: The planet's common name. Other names can be included in notes.Important notes about the planet can be written out following these statistics.
Planet Type: One of the types listed in the box on p. B180: Earthlike, Gas Giant, Hostile Terrestrial, Ice Dwarf, Ice World, or Rock World.
Gravity: One of the gravity bands on p. 00.
Atmosphere: One of the atmospheric pressure categories on p. 00. If the atmosphere has a hazardous composition, note this in parentheses after pressure: Corrosive, or Corrosive breathable; Toxic, resistance roll (HT, HT-2, etc.), damage (1 tox/day, 1 tox/minute, or 1d tox/15 seconds); and Suffocating.
TL: The average Tech Level of the planet. Significant variations should be included in notes.
Government: One of the Society and Government types listed on p. B809-510: Anarchy, Athenian Democracy, Representative Democracy, Clan/Tribal, Caste, Dictatorship, Technocracy, Theocracy, Corporate State, or Feudal. Any of the variations on p. B510 should be noted in parentheses: for example, Dictatorship (Military Government), or Representative Democracy (Colony).
CR: The average Control Rating of the planet. Significant variations should be included in notes.
Wealth: The average Wealth level of the planet's inhabitants. Significant variations should be included in notes.