The planets in our solar system are actually reachable on Wikipedia with their standardized designations of first naming the central star and then counting outward.
For example, our star would be "Sol" (being the Latin word for "sun", clever, huh?), making planet Mercury "Sol-1", Venus becomes "Sol-2" and Earth is, you guessed it, "Sol-3". Interestingly, "Sol-9" still links to Pluto, which I'm pretty sure is outdated because it is no longer a planet.
http://en.wikipedia.org/wiki/Sol-3
"Sol Prime" is another term that links to earth, although there doesn't seem to be an official rule for that - while most are willing to give good old Terra the "prime" designation for being the most densely populated/earliest discovered/hub of civilization, others would see it as a synonym for "Sol-1", i.e. Mercury (I remember that's how games like Master of Orion 2 handled it).
http://en.wikipedia.org/wiki/Sol_Prime
For example, our star would be "Sol" (being the Latin word for "sun", clever, huh?), making planet Mercury "Sol-1", Venus becomes "Sol-2" and Earth is, you guessed it, "Sol-3". Interestingly, "Sol-9" still links to Pluto, which I'm pretty sure is outdated because it is no longer a planet.
http://en.wikipedia.org/wiki/Sol-3
"Sol Prime" is another term that links to earth, although there doesn't seem to be an official rule for that - while most are willing to give good old Terra the "prime" designation for being the most densely populated/earliest discovered/hub of civilization, others would see it as a synonym for "Sol-1", i.e. Mercury (I remember that's how games like Master of Orion 2 handled it).
http://en.wikipedia.org/wiki/Sol_Prime