Random Generators
Here are a bunch of random generators for all kinds of things like Dungeons & Dragons, World of Warcraft, and even some silly stuff, like Survivor.
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 | G2V : Yellow Dwarf (M-S) | 1.0071 sol | 2.010 sol | |||
0.471 au | Rock | 0.68110 earth | 6,317 km | 0.04 | 2° | 3 |
0.707 au | Hot House | 1.59716 earth | 8,835 km | 0.09 | 18° | 1 |
0.849 au | Terran | 0.74651 earth | 5,442 km | 1.75 | 9° | 4 |
1.188 au | Terran | 0.64941 earth | 5,195 km | 0.15 | 9° | 3 |
8.3 au | K0V : Orange Dwarf (M-S) | 0.8292 sol | 1.747 sol | 0.000 | 1° | |
0.839 au | Ice Ball | 0.02329 earth | 2,720 km | 0.04 | 5° | 3 |
1.342 au | Ice Ball | 0.04497 earth | 4,884 km | 0.0 | 10° | 4 |
Full System Details
Star 1: G2 V Yellow Dwarf (M-S)
Mass | 1.0071 sol |
Diameter | 2.010 sol |
Temp | 5,804°K (Lux: 1.0287 sol) |
Age | 6,303.562 Myears (MAX: 9,789.989 Myears) |
Orbits | min: 0.101 AU inner max: 0.832 AU life max: 1.217 AU max: 2.767 AU |
Planet 1 - Inner Zone - Rock - Rocky | |
Orbit | dist: 0.471 AU period: 97.50 earth days Ecc: 0.04 Inc: 2° |
Body | rad: 6317 km mass: 0.681 earth grav: 0.694 earth rot: 2,340.064 hours tilt: 22° |
Temperatures | avg: 1,488.655°C day: 1,511.847°C night: 1,414.223°C |
Water Type: | Rare Ice - 1% |
Atmosphere | type: Vacuum pres: 0.000 atm comp: None oxyg: 0 |
Mineral Resources | Metal Ore: 1 Radioactive Ore: 1 Precious Metals: 1 Raw Crystals: 25.0438 Precious Gems: 1 |
Moons | |
Moon 0: | core: Rocky orbit: 101072 km incline: 13° ecc: 0.18 radius: 500 km mass: 0.00053073963615751 earth tilt: 38° |
Moon 1: | core: Rocky orbit: 1010720 km incline: 9° ecc: 0.02 radius: 864 km mass: 0.0022405908654598 earth tilt: 15° |
Moon 2: | core: Rocky orbit: 631700 km incline: 9° ecc: 0.2 radius: 1221 km mass: 0.0077289144679882 earth tilt: 55° |
Planet 2 - Inner Zone - Hot House - Rocky | |
Orbit | dist: 0.707 AU period: 274.30 earth days Ecc: 0.09 Inc: 18° |
Body | rad: 8835 km mass: 1.597 earth grav: 0.832 earth rot: 6,583.166 hours tilt: 19° |
Temperatures | avg: 891.444°C day: 891.822°C night: 178.289°C |
Water Type: | None - % |
Atmosphere | type: Massive pres: 79.046 atm comp: Carbon Dioxide oxyg: 0 |
Mineral Resources | Metal Ore: 6.01 Radioactive Ore: 1 Precious Metals: 2.01 Raw Crystals: 24.402 Precious Gems: 1 |
Moons | |
Moon 0: | core: Rocky orbit: 706800 km incline: 0° ecc: 0.04 radius: 500 km mass: 0.000289494346995 earth tilt: 39° |
Planet 3 - Life Zone - Terran - Rocky | |
Orbit | dist: 0.849 AU period: 246.51 earth days Ecc: 1.75 Inc: 9° |
Body | rad: 5442 km mass: 0.747 earth grav: 1.025 earth rot: -1,613.534 hours tilt: 41° |
Temperatures | avg: 735.722°C day: 738.488°C night: 367.861°C |
Water Type: | Oceans - 69% |
Atmosphere | type: Dense pres: 1.179 atm comp: Nitrogen/Oxygen oxyg: 0.20500693430217 |
Mineral Resources | Metal Ore: 35.304 Radioactive Ore: 18.304 Precious Metals: 10.6608 Raw Crystals: 27.0608 Precious Gems: 10.0608 |
Characteristics | Atmospheric Contaminants Cloud Cover Extreme Volcanism High Humidity Life-Forms: Semi-Intelligent Strong Magnetic Field Orbital Eccentricity Tidal Locked |
Moons | |
Moon 0: | core: Rocky orbit: 598620 km incline: 18° ecc: 0.04 radius: 1863.5 km mass: 0.019982830402935 earth tilt: 11° |
Moon 1: | core: Rocky orbit: 65304 km incline: 6° ecc: 0.05 radius: 3434 km mass: 0.14067671103301 earth tilt: 37° |
Moon 2: | core: Rocky orbit: 54420 km incline: 17° ecc: 0.05 radius: 500 km mass: 0.00033774340482751 earth tilt: 15° |
Moon 3: | core: Rocky orbit: 653040 km incline: 7° ecc: 0.02 radius: 403 km mass: 0.00010105410358746 earth tilt: 33° |
Planet 4 - Life Zone - Terran - Rocky | |
Orbit | dist: 1.188 AU period: 380.86 earth days Ecc: 0.15 Inc: 9° |
Body | rad: 5195 km mass: 0.649 earth grav: 0.979 earth rot: 6,756.213 hours tilt: 45° |
Temperatures | avg: 646.734°C day: 651.117°C night: 452.714°C |
Water Type: | Oceans - 66% |
Atmosphere | type: Standard pres: 1.018 atm comp: Nitrogen/Oxygen oxyg: 0.19570213592425 |
Mineral Resources | Metal Ore: 27.34 Radioactive Ore: 32.34 Precious Metals: 8.34 Raw Crystals: 30.068 Precious Gems: 5.34 |
Characteristics | Cloud Cover High Humidity Life-Forms: Intelligent Tidal Locked |
Moons | |
Moon 0: | core: Rocky orbit: 207800 km incline: 7° ecc: 0.01 radius: 500 km mass: 0.00043424152049251 earth tilt: 19° |
Moon 1: | core: Rocky orbit: 72730 km incline: 0° ecc: 0.02 radius: 1088 km mass: 0.0064626236057536 earth tilt: 33° |
Moon 2: | core: Rocky orbit: 831200 km incline: 10° ecc: 0.04 radius: 1551.5 km mass: 0.012974083043839 earth tilt: 33° |
Star 2: K0 V Orange Dwarf (M-S)
Mass | 0.8292 sol |
Diameter | 1.747 sol |
Temp | 5,126°K (Lux: 0.4728 sol) |
Age | 12,478.676 Myears (MAX: 17,539.698 Myears) |
Orbits | min: 0.069 AU inner max: 0.564 AU life max: 0.825 AU max: 2.767 AU |
Primary Distance | 8.300 AU |
Planet 1 - Outer Zone - Ice Ball - Icy | |
Orbit | dist: 0.839 AU period: 42.79 earth days Ecc: 0.04 Inc: 5° |
Body | rad: 2719.5 km mass: 0.023 earth grav: 0.128 earth rot: 1,026.933 hours tilt: 33° |
Temperatures | avg: 738.859°C day: 750.312°C night: 664.974°C |
Water Type: | Ice - 35% |
Atmosphere | type: Very Thin pres: 0.013 atm comp: Carbon Dioxide oxyg: 0 |
Mineral Resources | Metal Ore: 1 Radioactive Ore: 1 Precious Metals: 1 Raw Crystals: 1 Precious Gems: 1 |
Moons | |
Moon 0: | core: Icy orbit: 48951 km incline: 3° ecc: 0.0 radius: 500 km mass: 0.0001447471734975 earth tilt: 33° |
Moon 1: | core: Icy orbit: 163170 km incline: 3° ecc: 0.04 radius: 128 km mass: 4.0474243252618E-6 earth tilt: 20° |
Moon 2: | core: Icy orbit: 271950 km incline: 10° ecc: 0.0 radius: 1167 km mass: 0.0012269345268783 earth tilt: 25° |
Planet 2 - Outer Zone - Ice Ball - Icy | |
Orbit | dist: 1.342 AU period: 120.33 earth days Ecc: 0.0 Inc: 10° |
Body | rad: 4884 km mass: 0.045 earth grav: 0.077 earth rot: 2,887.962 hours tilt: 43° |
Temperatures | avg: 612.518°C day: 623.835°C night: 581.892°C |
Water Type: | Ice - 38% |
Atmosphere | type: Vacuum pres: 0.000 atm comp: None oxyg: 0 |
Mineral Resources | Metal Ore: 1 Radioactive Ore: 1 Precious Metals: 1 Raw Crystals: 1 Precious Gems: 1 |
Moons | |
Moon 0: | core: Icy orbit: 78144 km incline: 5° ecc: 0.04 radius: 500 km mass: 9.6498115665002E-5 earth tilt: 9° |
Moon 1: | core: Icy orbit: 976800 km incline: 4° ecc: 0.04 radius: 1039 km mass: 0.00043293776108524 earth tilt: 34° |
Moon 2: | core: Rocky orbit: 97680 km incline: 10° ecc: 0.11 radius: 1435.5 km mass: 0.012559753035145 earth tilt: 20° |
Moon 3: | core: Rocky orbit: 390720 km incline: 2° ecc: 0.0 radius: 500 km mass: 0.0002412452891625 earth tilt: 36° |