Random Dungeons & Dragons Scripts
I love D&D. I've made a bunch of random generators that aren't quite covered with other websites.
Star System Generator
PLEASE NOTE: The sheer amount of information here makes it impossible to format the system generator for small screens. Please use this on a medium or higher screen for best display results.
I've been involved in star system generation code for quite a while. There was one in particular that offered everything I needed: Aina's Star Generator.
Unfortunately Aina stopped updating the code over twenty years ago and can no longer be reached. He published his code base online back in the day so others could use and improve it.
Here we are in the here and now. I've updated his code to work with php and have made quite a number of modifications. The goal is to make a few tweaks here and there and test out the random generator in a gravity simulator like Universe Sandbox 2 to see just how viable these star systems are.
temperatures: planet temperatures are seriously out of whack. I've left them in until I can figure out the problem.
System Summary
orbit | description | mass | radius | ecc | inc | moons |
---|---|---|---|---|---|---|
primary | K0V : Orange Dwarf (M-S) | 0.8353 sol | 1.756 sol | |||
0.790 au | Glacier | 2.27851 earth | 7,894 km | 0.05 | 1° | 4 |
1.974 au | Gas Giant | 2,648.02004 earth | 119,700 km | 0.01 | 7° | 13 |
Full System Details
Star 1: K0 V Orange Dwarf (M-S)
Mass | 0.8353 sol |
Diameter | 1.756 sol |
Temp | 5,150°K (Lux: 0.4868 sol) |
Age | 9,609.411 Myears (MAX: 17,158.233 Myears) |
Orbits | min: 0.070 AU inner max: 0.572 AU life max: 0.837 AU max: 33.412 AU |
Planet 1 - Life Zone - Glacier - Rocky | |
Orbit | dist: 0.790 AU period: 386.70 earth days Ecc: 0.05 Inc: 1° |
Body | rad: 7894 km mass: 2.279 earth grav: 1.487 earth rot: 9,280.747 hours tilt: 19° |
Temperatures | avg: -15.000°C day: -12.622°C night: -7.500°C |
Water Type: | Ice Sheets - 64% |
Atmosphere | type: Dense pres: 1.859 atm comp: Methane/Ammonia/Hydrogen oxyg: 0.018833866255204 |
Mineral Resources | Metal Ore: 49.728 Radioactive Ore: 45.3456 Precious Metals: 16.5456 Raw Crystals: 33.9456 Precious Gems: 15.9456 |
Moons | |
Moon 0: | core: Rocky orbit: 1736680 km incline: 3° ecc: 0.03 radius: 2299 km mass: 0.037521978046111 earth tilt: 28° |
Moon 1: | core: Rocky orbit: 315760 km incline: 10° ecc: 0.01 radius: 1948.5 km mass: 0.025699375146262 earth tilt: 43° |
Moon 2: | core: Rocky orbit: 1736680 km incline: 10° ecc: 0.1 radius: 3186.5 km mass: 0.13737676265561 earth tilt: 35° |
Moon 3: | core: Rocky orbit: 947280 km incline: 9° ecc: 0.03 radius: 500 km mass: 0.00038599246266001 earth tilt: 35° |
Planet 2 - Outer Zone - Gas Giant - Icy | |
Orbit | dist: 1.974 AU period: 52,109.46 earth days Ecc: 0.01 Inc: 7° |
Body | rad: 119700 km mass: 2,648.020 earth grav: 7.515 earth rot: 1,250,627.153 hours tilt: 43° |
Temperatures | avg: -25.000°C day: -24.812°C night: -5.000°C |
Water Type: | Crystals - 1% |
Atmosphere | type: Massive pres: 744.026 atm comp: Hydrogen oxyg: 0.0037667732510407 |
Mineral Resources | Metal Ore: 77.2 Radioactive Ore: 47.4 Precious Metals: 20.4 Raw Crystals: 40.2 Precious Gems: 21.8 |
Moons | |
Moon 0: | core: Icy orbit: 19152000 km incline: 18° ecc: 0.03 radius: 500 km mass: 0.0001447471734975 earth tilt: 20° |
Moon 1: | core: Icy orbit: 1915200 km incline: 9° ecc: 0.04 radius: 16.5 km mass: 1.7339263913266E-9 earth tilt: 35° |
Moon 2: | core: Rocky orbit: 4788000 km incline: 1° ecc: 0.03 radius: 3134 km mass: 0.15446111051369 earth tilt: 17° |
Moon 3: | core: Icy orbit: 7182000 km incline: 7° ecc: 0.03 radius: 2908.5 km mass: 0.0094969910476545 earth tilt: 30° |
Moon 4: | core: Icy orbit: 2154600 km incline: 2° ecc: 0.01 radius: 205.5 km mass: 2.0098588255973E-5 earth tilt: 34° |
Moon 5: | core: Icy orbit: 11970000 km incline: 3° ecc: 0.03 radius: 313 km mass: 4.7344750059071E-5 earth tilt: 22° |
Moon 6: | core: Icy orbit: 10773000 km incline: 6° ecc: 0.04 radius: 797 km mass: 0.0011724789078744 earth tilt: 36° |
Moon 7: | core: Icy orbit: 7182000 km incline: 2° ecc: 0.1 radius: 839 km mass: 0.00091185272023396 earth tilt: 30° |
Moon 8: | core: Icy orbit: 21546000 km incline: 0° ecc: 0.14 radius: 500 km mass: 0.0001447471734975 earth tilt: 11° |
Moon 9: | core: Icy orbit: 1436400 km incline: 5° ecc: 0.03 radius: 774 km mass: 0.00017897884711383 earth tilt: 29° |
Moon 10: | core: Icy orbit: 13167000 km incline: 4° ecc: 0.05 radius: 1444.5 km mass: 0.0058170321901015 earth tilt: 17° |
Moon 11: | core: Rocky orbit: 2394000 km incline: 0° ecc: 0.12 radius: 1247 km mass: 0.0037423826322524 earth tilt: 28° |
Moon 12: | core: Icy orbit: 7182000 km incline: 0° ecc: 0.09 radius: 500 km mass: 4.8249057832501E-5 earth tilt: 33° |