🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.62 AU - 0.74 AU

Year: 212 Days

Day: 35.3 Hours

Environment

Temp: 142 °C

Axial Tilt: 16.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.93 AU - 0.97 AU

Year: 351 Days

Day: 47.5 Hours

Environment

Temp: 28 °C

Axial Tilt: 9.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 59,655,462 km

• M1: 140,323 km (0.059 R)

Asteroid Belt

Center: 2.86 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990

Radius: 9

Gravity: 12.22 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.74 AU - 5.78 AU

Year: 3933 Days

Day: 13.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,655,462 km

• M1: 111,899 km (0.077 R)
• M2: 400,025 km (0.074 R)
• M3: 789,877 km (0.107 R)
• M4: 1,354,459 km (0.048 R)
• M5: 1,752,988 km (0.031 R)
• M6: 2,198,341 km (0.06 R)
• M7: 2,513,992 km (0.114 R)
• M8: 2,988,367 km (0.098 R)
• M9: 3,542,478 km (0.113 R)
• M10: 4,140,121 km (0.12 R)
• M11: 6,497,933 km (0.081 R)
• M12: 6,853,228 km (0.074 R)
• M13: 8,107,606 km (0.106 R)
• M14: 8,481,750 km (0.068 R)
• M15: 9,840,997 km (0.079 R)
• M16: 10,749,804 km (0.112 R)
• M17: 12,047,266 km (0.038 R)
• M18: 12,338,234 km (0.097 R)
• M19: 12,683,805 km (0.09 R)
• M20: 14,238,576 km (0.101 R)
• M21: 14,783,860 km (0.097 R)
• M22: 15,117,762 km (0.115 R)
• M23: 16,984,145 km (0.111 R)
• M24: 18,803,854 km (0.117 R)
• M25: 23,953,312 km (0.059 R)
• M26: 24,802,878 km (0.066 R)
• M27: 25,433,284 km (0.076 R)
• M28: 25,993,677 km (0.117 R)
• M29: 26,890,666 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249

Radius: 13.9

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.35 AU - 6.09 AU

Year: 4517 Days

Day: 11.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,655,462 km

• M1: 172,935 km (0.12 R)
• M2: 606,470 km (0.058 R)
• M3: 1,450,651 km (0.101 R)
• M4: 1,968,110 km (0.078 R)
• M5: 2,464,775 km (0.074 R)
• M6: 3,299,381 km (0.073 R)
• M7: 3,870,396 km (0.083 R)
• M8: 5,189,101 km (0.112 R)
• M9: 5,732,291 km (0.07 R)
• M10: 6,231,948 km (0.111 R)
• M11: 7,198,949 km (0.097 R)
• M12: 8,362,521 km (0.034 R)
• M13: 9,430,949 km (0.116 R)
• M14: 10,627,283 km (0.093 R)
• M15: 12,134,182 km (0.093 R)
• M16: 12,828,167 km (0.046 R)
• M17: 13,275,315 km (0.056 R)
• M18: 13,825,686 km (0.068 R)
• M19: 14,972,204 km (0.069 R)
• M20: 16,969,036 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.3

Radius: 11.7

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.22 AU - 6.48 AU

Year: 4687 Days

Day: 11.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,655,462 km

• M1: 145,559 km (0.113 R)
• M2: 562,039 km (0.084 R)
• M3: 1,227,151 km (0.113 R)
• M4: 3,755,206 km (0.097 R)
• M5: 4,871,655 km (0.119 R)
• M6: 5,323,889 km (0.112 R)
• M7: 6,197,391 km (0.066 R)
• M8: 6,851,582 km (0.117 R)
• M9: 7,551,401 km (0.105 R)
• M10: 8,945,354 km (0.07 R)
• M11: 9,510,086 km (0.119 R)
• M12: 10,463,025 km (0.09 R)
• M13: 11,132,924 km (0.061 R)
• M14: 12,651,642 km (0.057 R)
• M15: 13,219,216 km (0.048 R)
• M16: 13,656,042 km (0.102 R)
• M17: 15,769,560 km (0.091 R)
• M18: 17,739,016 km (0.066 R)
• M19: 18,691,955 km (0.107 R)
• M20: 19,616,170 km (0.118 R)
• M21: 21,223,600 km (0.032 R)
• M22: 22,502,811 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 10.7

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 8.49 AU - 11.29 AU

Year: 11780 Days

Day: 14.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,655,462 km

• M1: 134,788 km (0.096 R)
• M2: 574,456 km (0.085 R)
• M3: 1,398,142 km (0.102 R)
• M4: 1,772,585 km (0.056 R)
• M5: 3,027,412 km (0.097 R)
• M6: 3,399,163 km (0.066 R)
• M7: 6,312,881 km (0.104 R)
• M8: 8,168,941 km (0.099 R)
• M9: 11,156,261 km (0.112 R)
• M10: 16,254,108 km (0.104 R)
• M11: 17,955,185 km (0.061 R)
• M12: 19,180,990 km (0.064 R)
• M13: 24,252,956 km (0.104 R)
• M14: 32,592,888 km (0.098 R)
• M15: 34,044,287 km (0.06 R)
• M16: 36,816,485 km (0.111 R)
• M17: 42,094,447 km (0.036 R)
• M18: 44,398,554 km (0.103 R)
• M19: 46,937,379 km (0.09 R)
• M20: 48,786,708 km (0.119 R)
• M21: 54,794,259 km (0.051 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 12,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit