Talk:Planet

Notes (2019)

1. EXTERNAL LINK: Good inspiration from ICE
2. EXTERNAL LINK: I created a planet and stellar object classification chart - based in part on the Star Trek planet classes and the trade classifications of Traveller. My players have NEVER played Traveller, but they are Star Wars and Star Trek and sci-fi geeks. by Thomas Cage
3. EXTERNAL LINK: Stellar Classification by Thomas Cage
4. EXTERNAL LINK: New class of Planets “Mega Earth” Discovered by Astronomers
   1. Super-Jupiter
   2. Hot-Jupiter
   3. Mini-Neptune
   4. Pulsar Planet
   5. Free-Floating Planet
   6. Super-Earth
   7. Mega Earth
5. EXTERNAL LINK: CotI: ST has something like 24 planetary classifications. Here's what I think of when I compare them to Traveller…

- Maksim-Smelchak (talk) 12:11, 29 January 2019 (EST)

Notes (2018)

1. EXTERNAL LINK: Phil's Database of Worlds with Unknown Locations
2. EXTERNAL LINK: Made in Fractal Terrains 3, with the free Terraformer add-on for terrains, and Campaign Cartographer 3+ with Cosmographer.Carsten aramis, and Rugbird.
3. EXTERNAL LINK: Does anyone here use Astrosynthesis for their Traveller games?
4. EXTERNAL LINK: Astrosynthesis
5. EXTERNAL LINK: Six New Horizons scientists propose geophysical planet definition
6. EXTERNAL LINK: 4 rather good planet name generators

- Maksim-Smelchak (talk) 11:29, 3 August 2018 (EDT)

Notes (2017)

1. EXTERNAL LINK: CARPENTRY TIPS FOR WORLDMAKERS
2. EXTERNAL LINK: Ultimate Engineered Solar System
3. EXTERNAL LINK: T5 World Mapping Tool
4. EXTERNAL LINK: Unbelievably Strange Planets in Space
5. EXTERNAL LINK: HI. I'm have a question: What are the planet types in 2300 AD? Can others be added?

- Maksim-Smelchak (talk) 11:34, 31 July 2017 (EDT)

Additional classification of Planets (2017)

There is a finer division of the composition of planets. From GT: First In,p 57:

• A planet with a density of 1.3 to 3.0 is a silicate world, with a density 3.1 to 4.5 is a low-iron world, with density 4.6 to 6.0 is a medium-iron world, with a density 6.1 to 7.0 is a high-iron world, and with a density 7.1 and up is a metallic world.
• Values are in grams per cubic centimeter (gm/cc^3). Earth has a density of 5.5, a medium-iron world. Worlds consisting entirely of water (or ice) would be a silicate world.
• Icy bodies too small to be planets (i.e. have the gravity to be self-rounding) may have densities in the range of 0.8 to 1.3 range.
• From GT:First In, p 58:

G = 0.0228 x K x D , where K is the density given above, and D is the diameter of the world in thousands of miles, and the result G is the gravity of the world in Gs.

- Tjoneslo (talk) 11:25, 27 August 2017 (EDT)

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Let's make a nonfunctional blank entry in the UWP and record it for future use. Great point.

I didn't participate in the GURPS products like you, but I have read through all of them and love the work.

I have already been deriving climate codes from the GURPS data.

Let's brainstorm it sometime, please, and see what we can come up with.

- Maksim-Smelchak (talk) 11:30, 27 August 2017 (EDT)

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Thomas, I like it. Well done.

• Please go over Jupiter if you get a chance.

- Maksim-Smelchak (talk) 21:59, 27 August 2017 (EDT)