So far the pages are populated with the following information:

A picture of the planet
Pictures of the planet's parent body and moons
The planet's in-game description
The science multiplier in different situations at the planet
The altitude border between different situations at the planet
Orbital Period
The planet's orbital inclination
Semi-major axis needed for synchronous orbit
The phase angle for optimal transfer
delta-v needed to (safely) get to the surface from Kerbin's surface
delta-v needed to land/take off
delta-v needed to escape
Surface gravity in g's
Height of the atmosphere
Number of biomes
The highest and lowest point on the surface, with their coordinates
The Sidereal day length
Efficiency of solar panels on planet's surface (as opposed to Kerbin's surface)
Minimum and maximum distances that the planets can be from Kerbin

(Moons are included, too!)

Advice on the actual design is something I'd be grateful for, since I don't want this to look like an unreadable mess. Please post any ideas below for information you sometimes need to know for your missions that isn't easily accessible/not available in the stock game. All suggestions are welcome! (I'm running out of page space tho)

If you like my work and want to support this project, donate! No amount is too small.

Planet Wiki - OPM Edition