Something in the vein of my Species Sheet?
(Section 1 -- System)
Star: (Name of Star)
Star Type: (Color (blue, white, yellow, red) and size (giant, medium, dwarf, etc.))
Planet #1: (Name of the planet closest to your star. Is it a hot rock? An ice ball? Asteroid belt? Gas giant? Habitable?)
Planet #2: (Rinse and repeat. Put as many of these as you need.)
(Section 2 -- Terrain and Atmosphere)
Average Temperature: (Very hot, Hot, Mild, Cool, Cold, Bitterly cold)
Liquid: (Where's the water/magma/ice/other fluid on your planet. Are there oceans? Or are they more like lakes? Or puddles?)
Average Terrain: (What's the majority of your planet like?)
Density: (How thick is your atmosphere? No Atmosphere, thin, average, dense, very dense)
Composition: (Values below)
(Section 3 -- Life)
Main Species: (Who is the main Intellegent race on your planet? Are they native to this planet?)
Native Animals: (Are there any animals native to your planet? Are they primitive or advanced? Are there many, or just a few?)
Imported Animals: (Same as above, but for non-native animals)
Native Plants: (Same as native animals, but with plants.)
Imported Plants: (Same as above, but for non-native plants)
(Section 4 -- Development)
Structures: (Are there any artificial structures? Tents, buildings, monuments, etc?)
% Urban: (How much of the habitable area is covered by city?)
Spaceports: (Are there spacedocks on the surface? In orbit?)
Imports: (What does this planet need?)
Exports: (What does this planet produce?)
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Atmospheric gasses: (Pick five maximum. Nitrogen/Oxygen is the standard atmosphere)
Nitrogen
Oxygen
Argon
Carbon Dioxide
Carbon Monoxide
Water Vapor
Neon
Hydrogen
Helium
Methane
Other Hydrocarbons (ethane, propane, etc)
Krypton
Ammonia
Chlorine
Iodine
Nitrogen Dioxide
Ozone (Most atmospheres are assumed to have at least trace Ozone)
Xenon
Nitrous Oxide
Sulfur Dioxide (related to volcanoes)
Silicon Dioxide (Realy sand, here it is a gas, for silicon races)
Ash
Hydrogen Chloride
Hydrogen Flouride
Formaldehyde
Hydrogen Cyanide