🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 9.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.62 AU - 0.7 AU

Year: 370 Days

Day: 9.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,989,034 km

• M1: 115,639 km (0.064 R)
• M2: 516,561 km (0.086 R)
• M3: 809,175 km (0.079 R)
• M4: 1,177,934 km (0.075 R)
• M5: 1,518,269 km (0.093 R)
• M6: 1,910,664 km (0.097 R)
• M7: 2,657,008 km (0.11 R)
• M8: 3,131,831 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.2

Radius: 14.6

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.78 AU - 0.94 AU

Year: 551 Days

Day: 8.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,989,034 km

• M1: 181,612 km (0.072 R)
• M2: 636,689 km (0.037 R)
• M3: 1,246,001 km (0.053 R)
• M4: 2,026,303 km (0.118 R)
• M5: 2,953,062 km (0.049 R)
• M6: 4,476,866 km (0.044 R)
• M7: 4,987,294 km (0.066 R)
• M8: 6,377,806 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.5

Radius: 13.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.07 AU - 1.35 AU

Year: 919 Days

Day: 14.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,989,034 km

• M1: 165,455 km (0.109 R)
• M2: 615,146 km (0.113 R)
• M3: 1,100,741 km (0.057 R)
• M4: 1,569,730 km (0.082 R)
• M5: 2,367,536 km (0.116 R)
• M6: 2,930,622 km (0.048 R)
• M7: 3,479,497 km (0.044 R)
• M8: 4,414,633 km (0.108 R)
• M9: 4,858,789 km (0.089 R)
• M10: 6,264,710 km (0.057 R)
• M11: 6,689,568 km (0.085 R)
• M12: 7,522,978 km (0.067 R)
• M13: 8,055,546 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.9

Radius: 8.8

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.35 AU - 1.45 AU

Year: 1143 Days

Day: 7.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,989,034 km

• M1: 109,506 km (0.087 R)
• M2: 552,166 km (0.089 R)
• M3: 834,158 km (0.103 R)
• M4: 1,275,322 km (0.03 R)
• M5: 1,568,384 km (0.116 R)
• M6: 1,896,751 km (0.09 R)
• M7: 2,293,784 km (0.117 R)
• M8: 3,212,315 km (0.034 R)
• M9: 3,763,134 km (0.052 R)
• M10: 4,687,200 km (0.095 R)
• M11: 4,994,026 km (0.115 R)
• M12: 5,396,444 km (0.079 R)
• M13: 5,690,853 km (0.119 R)
• M14: 6,152,661 km (0.031 R)
• M15: 7,637,270 km (0.102 R)
• M16: 8,144,856 km (0.104 R)
• M17: 8,703,305 km (0.118 R)
• M18: 9,109,314 km (0.068 R)
• M19: 10,053,276 km (0.078 R)
• M20: 10,794,683 km (0.118 R)
• M21: 11,094,627 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.5

Radius: 13.8

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.24 AU - 1.82 AU

Year: 1306 Days

Day: 5.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,989,034 km

• M1: 172,187 km (0.055 R)
• M2: 672,742 km (0.057 R)
• M3: 1,333,964 km (0.109 R)
• M4: 1,891,515 km (0.093 R)
• M5: 2,402,691 km (0.105 R)
• M6: 3,241,487 km (0.081 R)
• M7: 3,803,675 km (0.03 R)
• M8: 4,769,779 km (0.087 R)
• M9: 5,766,400 km (0.081 R)
• M10: 6,999,984 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.2

Radius: 14.8

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.25 AU - 2.03 AU

Year: 1450 Days

Day: 7.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,989,034 km

• M1: 184,454 km (0.099 R)
• M2: 672,742 km (0.082 R)
• M3: 2,194,302 km (0.059 R)
• M4: 2,697,698 km (0.113 R)
• M5: 3,926,795 km (0.096 R)
• M6: 4,477,165 km (0.103 R)
• M7: 5,217,525 km (0.092 R)
• M8: 6,016,378 km (0.095 R)
• M9: 7,341,366 km (0.075 R)
• M10: 8,127,204 km (0.106 R)
• M11: 9,173,042 km (0.118 R)
• M12: 10,759,677 km (0.107 R)
• M13: 11,327,252 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.1

Radius: 12.8

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.09 AU - 2.17 AU

Year: 2146 Days

Day: 6.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,989,034 km

• M1: 159,172 km (0.112 R)
• M2: 943,514 km (0.106 R)
• M3: 1,389,615 km (0.107 R)
• M4: 2,065,199 km (0.066 R)
• M5: 2,785,812 km (0.104 R)
• M6: 3,319,278 km (0.095 R)
• M7: 4,024,632 km (0.088 R)
• M8: 4,536,107 km (0.097 R)
• M9: 4,988,491 km (0.027 R)
• M10: 5,802,602 km (0.118 R)
• M11: 6,506,161 km (0.116 R)
• M12: 6,904,391 km (0.083 R)
• M13: 7,532,253 km (0.115 R)
• M14: 8,842,281 km (0.063 R)
• M15: 9,488,694 km (0.084 R)
• M16: 10,034,876 km (0.091 R)
• M17: 10,945,328 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.9

Radius: 7.8

Gravity: 11.08 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 7.99 AU - 12.95 AU

Year: 23385 Days

Day: 16.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,989,034 km

• M1: 107,561 km (0.084 R)
• M2: 1,315,713 km (0.095 R)
• M3: 2,142,989 km (0.115 R)
• M4: 2,897,860 km (0.071 R)
• M5: 3,632,535 km (0.085 R)
• M6: 4,043,780 km (0.039 R)
• M7: 5,921,383 km (0.056 R)
• M8: 8,316,146 km (0.084 R)
• M9: 9,432,894 km (0.09 R)
• M10: 10,901,197 km (0.06 R)
• M11: 12,586,566 km (0.1 R)
• M12: 13,380,482 km (0.061 R)
• M13: 13,978,575 km (0.119 R)
• M14: 15,308,500 km (0.061 R)
• M15: 22,399,439 km (0.09 R)
• M16: 23,456,348 km (0.046 R)
• M17: 32,866,802 km (0.12 R)
• M18: 40,678,653 km (0.097 R)
• M19: 41,931,984 km (0.047 R)
• M20: 44,680,695 km (0.12 R)
• M21: 53,271,054 km (0.041 R)
• M22: 60,644,733 km (0.056 R)
• M23: 67,794,015 km (0.059 R)
• M24: 73,856,319 km (0.174 R)
• M25: 74,551,500 km (0.068 R)
• M26: 81,250,942 km (0.057 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 13,486 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit