Excellent work. I see that I'm not the only one who's attempted to compile an index of planets across the LEGO Universe, although mine is somewhat outdated as I have not updated it in quite a while. Comparing your list to my own, here's a few more entries you can add.
Also, I don't suppose you were the fellow who contacted me on Constructopedia Wiki? If you are, then I'm all the happier to provide you with the following information!
Mercury
A small planet with a day approximately half as long as that of Earth. (
March-April 1997 LEGO Mania)
Venus
Known by RoboForce for its unfriendly atmosphere, with temperatures up to 900 degrees and pressures like being 3,000 feet underwater; enough to vaporize spacecraft in two hours. (
March-April 1997 LEGO Mania) Inhabited by Venusians, which speak the Venusian language and are known for making waffles. (Space Police III, The Brick Street Journal)
You can also add to
Mars that we have confirmation of its two moons, Phobos and Deimos. (Mars Mission)
Jupiter
Briefly mentioned in a RoboForce log. (
March-April 1997 LEGO Mania) Possibly home to Jovian cosmic storms and Jovian blockodiles, which are tough and mean (the term "Jovian" refers to Jupiter). (Space Police Log, July-August 2011 LEGO Magazine)
Saturn
Made up of mostly hydrogen and helium gases, with lower density than seawater. Known for its rings made up of lumps of ice and space dust, ranging in size from sugar grains to train cars. (
March-April 1997 LEGO Mania) Home to 17-legged spiders which may be domesticated as pets. (
January-February 1996 LEGO Mania)
Neptune
Known for its fourteen moons, though one of the smaller moons was badly damaged when Captain McReynolds of the Star Justice crashed a rocket’s cargo of unstable energy containers into the moon. (LEGO Factory: Space)
Pluto
Home to mining activity. Known for being the site where the Rock Raiders Chief lost his left arm. (High Adventure Deep Underground) Famous for its Pluto Pepperoni Pizzas. (still locating source)
Terra-9
Inhabited by crystal bees and home to the Quadrillion Dunes, which are patrolled by Space Police. (The Brick Street Journal)
Gallant 5
Site of the ancient structure built by the mythical First Builders, which was a clue to the location of the Imagination Nexus. (The Great Minifig Mission)
I'm not sure where, but you might want to list somewhere all the known planets that
Crux split into, including Crux Prime, Avant Gardens, Block Yard*, Avant Grove*, Nimbus Station, Nimbus Rock*, Nimbus Isle*, Pet Cove, Gnarled Forest, Chantey Shanty*, Forbidden Valley, and Raven Bluff*. If you want, I can provide info on these. This system is known collectively as "Nimbus System".
* Depending on your definition, these might be too small to qualify as their own planet.
Similarly, you probably want to mention somewhere that, following The Shattering, Spherus Magna was known as
Bara Magna, and it had the two moons Aqua Magna and Bota Magna.
DeepFreeze
Has an arctic climate, and appears similar to Canada in terms of fauna (with the exception of penguins) and flora. Located close enough to Nimbus System to be affected by the Maelstrom. (LEGO Universe)
Portabello
A fantasy world inhabited by magical, sentient animals such as flying pigs. Located close enough to Nimbus System to be affected by the Maelstrom. (LEGO Universe)
Ninjago is implied by LEGO Universe to be its own separate planet, like how Clutch Powers shows the 2007-2009 LEGO Castle theme to take place on Planet Ashlar.
Kazak
Home to the evil Kazak's main base. (The Unknown Galaxy) According to jamesster, this is not stated anywhere in The Unknown Galaxy itself. I may have gotten this info from BrickJournal, but seeing as most of my LEGO library
is in another castle isn't accessible at the moment, I cannot confirm.
Swamp Planet, The
A swamp planet. At least one large body of water exists, home to a massive tentacle monster. Home to the Castle of the Darkmen. (The Kidnappers From Swamp Planet)
Alpha-1
Home to the Alpha-1 Rocket Base and the orbiting Space Station Alpha 1. (Classic Space,
SOS Space Station Alpha 1)
Beta I
Home to the Beta I Command Base. (Classic Space)
Polaris I
Home to the Polaris I Space Lab. (Classic Space)
Castle Planet
Barren planet. Home to the Fright Knights kingdom. A large crevice splitting the planet is home to a giant dragon. May be located in another universe. (
Fright Knights/UFO Commercial)
We have no name for it, but it was confirmed that
Sentai Mountain, the setting of the LEGO Exo-Force line, is not located on Earth.
Well, aside from the names of a few clusters, systems, quadrants, and sectors, I believe that's all I have that's not on your list. I'm happy to contribute them so that we can get closer to having a complete index of all the planets in the LEGO Universe.
Edited by PeabodySam, 19 February 2013 - 04:41 AM.