🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.1

Radius: 11.5

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.97 AU - 1.01 AU

Year: 657 Days

Day: 7.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,005,999 km

• M1: 143,016 km (0.106 R)
• M2: 542,741 km (0.054 R)
• M3: 915,240 km (0.075 R)
• M4: 1,385,725 km (0.119 R)
• M5: 1,846,935 km (0.056 R)
• M6: 2,876,767 km (0.089 R)
• M7: 3,545,320 km (0.052 R)
• M8: 4,270,271 km (0.083 R)
• M9: 5,647,170 km (0.113 R)
• M10: 6,147,126 km (0.088 R)
• M11: 6,983,827 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.7

Radius: 10.4

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.78 AU - 2.06 AU

Year: 1774 Days

Day: 11.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 118.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,005,999 km

• M1: 129,402 km (0.101 R)
• M2: 712,535 km (0.107 R)
• M3: 1,067,381 km (0.088 R)
• M4: 1,451,399 km (0.098 R)
• M5: 1,841,999 km (0.116 R)
• M6: 2,265,510 km (0.081 R)
• M7: 2,985,973 km (0.1 R)
• M8: 3,608,749 km (0.103 R)
• M9: 4,354,644 km (0.088 R)
• M10: 5,069,872 km (0.068 R)
• M11: 5,399,586 km (0.055 R)
• M12: 6,078,161 km (0.028 R)
• M13: 6,707,819 km (0.118 R)
• M14: 7,380,411 km (0.101 R)
• M15: 8,828,668 km (0.072 R)
• M16: 10,283,208 km (0.112 R)
• M17: 12,318,337 km (0.1 R)
• M18: 13,039,100 km (0.098 R)
• M19: 14,000,566 km (0.046 R)
• M20: 14,963,976 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.5

Radius: 11.6

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.14 AU - 2.46 AU

Year: 2326 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,005,999 km

• M1: 144,212 km (0.085 R)
• M2: 796,459 km (0.08 R)
• M3: 1,622,539 km (0.076 R)
• M4: 1,987,408 km (0.103 R)
• M5: 2,634,269 km (0.086 R)
• M6: 3,214,858 km (0.066 R)
• M7: 3,673,974 km (0.067 R)
• M8: 4,159,868 km (0.111 R)
• M9: 4,579,191 km (0.092 R)
• M10: 5,065,234 km (0.098 R)
• M11: 5,523,901 km (0.109 R)
• M12: 6,876,117 km (0.085 R)
• M13: 9,026,736 km (0.074 R)
• M14: 9,672,699 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.5

Radius: 11.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.1 AU - 2.91 AU

Year: 2636 Days

Day: 12.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,005,999 km

• M1: 150,047 km (0.082 R)
• M2: 680,222 km (0.105 R)
• M3: 1,279,062 km (0.12 R)
• M4: 1,730,847 km (0.101 R)
• M5: 2,263,565 km (0.112 R)
• M6: 5,338,101 km (0.108 R)
• M7: 6,609,683 km (0.091 R)
• M8: 8,997,115 km (0.088 R)
• M9: 14,838,613 km (0.065 R)
• M10: 16,618,977 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.7

Radius: 9.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.71 AU - 4.43 AU

Year: 4498 Days

Day: 7.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,005,999 km

• M1: 115,639 km (0.112 R)
• M2: 429,346 km (0.109 R)
• M3: 936,483 km (0.099 R)
• M4: 1,606,232 km (0.105 R)
• M5: 2,494,544 km (0.066 R)
• M6: 5,111,310 km (0.112 R)
• M7: 6,189,163 km (0.119 R)
• M8: 7,625,303 km (0.098 R)
• M9: 8,257,802 km (0.092 R)
• M10: 8,586,918 km (0.104 R)
• M11: 9,591,467 km (0.061 R)
• M12: 12,942,161 km (0.105 R)
• M13: 13,387,065 km (0.093 R)
• M14: 14,591,328 km (0.076 R)
• M15: 16,222,244 km (0.055 R)
• M16: 16,531,313 km (0.11 R)
• M17: 17,267,783 km (0.064 R)
• M18: 18,749,700 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32

Radius: 9.5

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.11 AU - 4.83 AU

Year: 6302 Days

Day: 10.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,005,999 km

• M1: 118,781 km (0.096 R)
• M2: 503,696 km (0.086 R)
• M3: 2,726,421 km (0.065 R)
• M4: 4,694,082 km (0.077 R)
• M5: 5,902,234 km (0.044 R)
• M6: 7,948,135 km (0.118 R)
• M7: 9,252,180 km (0.051 R)
• M8: 9,780,260 km (0.034 R)
• M9: 12,205,690 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.6

Radius: 4.2

Gravity: 23.79 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.92 AU - 9.02 AU

Year: 13615 Days

Day: 17.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,005,999 km

• M1: 52,210 km (0.108 R)
• M2: 329,265 km (0.108 R)
• M3: 1,068,578 km (0.071 R)
• M4: 1,245,552 km (0.045 R)
• M5: 1,497,624 km (0.102 R)
• M6: 1,704,518 km (0.112 R)
• M7: 1,863,840 km (0.065 R)
• M8: 3,806,368 km (0.092 R)
• M9: 5,010,332 km (0.036 R)
• M10: 6,110,923 km (0.086 R)
• M11: 8,363,269 km (0.103 R)
• M12: 12,073,147 km (0.046 R)
• M13: 12,722,252 km (0.059 R)
• M14: 13,086,074 km (0.115 R)
• M15: 14,413,755 km (0.07 R)
• M16: 15,759,238 km (0.096 R)
• M17: 16,749,576 km (0.091 R)
• M18: 19,565,008 km (0.119 R)
• M19: 20,049,555 km (0.073 R)
• M20: 26,014,172 km (0.032 R)
• M21: 35,745,065 km (0.099 R)
• M22: 47,356,702 km (0.108 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 17,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit