🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.45 AU - 0.73 AU

Year: 288 Days

Day: 30.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.4

Radius: 13.4

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.64 AU - 0.78 AU

Year: 380 Days

Day: 7.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,881,878 km

• M1: 166,951 km (0.033 R)
• M2: 596,896 km (0.116 R)
• M3: 1,026,092 km (0.075 R)
• M4: 1,660,088 km (0.083 R)
• M5: 2,127,581 km (0.034 R)
• M6: 2,743,326 km (0.091 R)
• M7: 3,535,895 km (0.032 R)
• M8: 4,132,192 km (0.109 R)
• M9: 4,691,838 km (0.106 R)
• M10: 5,333,762 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.2

Radius: 9.4

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.94 AU - 1.02 AU

Year: 617 Days

Day: 11.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,881,878 km

• M1: 116,986 km (0.101 R)
• M2: 443,857 km (0.036 R)
• M3: 747,840 km (0.115 R)
• M4: 1,428,809 km (0.081 R)
• M5: 2,020,319 km (0.1 R)
• M6: 2,489,309 km (0.074 R)
• M7: 3,962,548 km (0.03 R)
• M8: 4,312,907 km (0.034 R)
• M9: 4,733,875 km (0.025 R)
• M10: 5,715,087 km (0.053 R)
• M11: 6,284,307 km (0.084 R)
• M12: 7,513,104 km (0.026 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 938.5

Radius: 4.3

Gravity: 50.76 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.16 AU - 9.68 AU

Year: 16939 Days

Day: 24.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 38,881,878 km

• M1: 53,406 km (0.097 R)
• M2: 596,896 km (0.12 R)
• M3: 743,651 km (0.058 R)
• M4: 1,022,053 km (0.078 R)
• M5: 1,954,945 km (0.06 R)
• M6: 3,130,784 km (0.095 R)
• M7: 3,820,879 km (0.09 R)
• M8: 5,815,767 km (0.118 R)
• M9: 7,221,388 km (0.074 R)
• M10: 10,022,459 km (0.11 R)
• M11: 10,499,826 km (0.092 R)
• M12: 13,187,501 km (0.087 R)
• M13: 14,803,009 km (0.085 R)
• M14: 14,956,197 km (0.086 R)
• M15: 18,332,770 km (0.091 R)
• M16: 20,244,182 km (0.105 R)
• M17: 24,033,347 km (0.046 R)
• M18: 33,764,688 km (0.114 R)
• M19: 34,030,224 km (0.118 R)
• M20: 37,324,818 km (0.081 R)
• M21: 52,987,267 km (0.05 R)
• M22: 54,795,905 km (0.057 R)
• M23: 62,841,727 km (0.084 R)
• M24: 68,834,019 km (0.102 R)
• M25: 69,904,243 km (0.058 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.2

Radius: 4.1

Gravity: 15.24 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.1 AU - 11.74 AU

Year: 19866 Days

Day: 22 Hours

Environment

Temp: -229 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 38,881,878 km

• M1: 51,013 km (0.049 R)
• M2: 254,017 km (0.069 R)
• M3: 647,609 km (0.11 R)
• M4: 1,326,484 km (0.093 R)
• M5: 1,465,012 km (0.086 R)
• M6: 2,289,895 km (0.102 R)
• M7: 2,490,356 km (0.108 R)
• M8: 3,090,393 km (0.106 R)
• M9: 4,004,585 km (0.073 R)
• M10: 5,392,854 km (0.062 R)
• M11: 6,505,114 km (0.118 R)
• M12: 7,541,977 km (0.099 R)
• M13: 8,031,311 km (0.078 R)
• M14: 10,689,366 km (0.118 R)
• M15: 12,795,854 km (0.108 R)
• M16: 15,024,713 km (0.119 R)
• M17: 25,529,625 km (0.105 R)
• M18: 27,862,903 km (0.079 R)
• M19: 28,706,784 km (0.088 R)
• M20: 29,894,591 km (0.117 R)
• M21: 30,334,559 km (0.079 R)
• M22: 31,227,359 km (0.117 R)
• M23: 33,654,135 km (0.034 R)
• M24: 36,452,962 km (0.085 R)
• M25: 36,829,051 km (0.095 R)
• M26: 38,101,680 km (0.107 R)
• M27: 40,331,586 km (0.105 R)
• M28: 47,690,156 km (0.118 R)
• M29: 48,140,146 km (0.103 R)
• M30: 48,744,372 km (0.105 R)
• M31: 52,636,011 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.2

Radius: 4.9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 9.39 AU - 12.27 AU

Year: 22661 Days

Day: 15.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,881,878 km

• M1: 83,924 km (0.105 R)
• M2: 344,374 km (0.074 R)
• M3: 521,049 km (0.094 R)
• M4: 886,068 km (0.113 R)
• M5: 1,520,363 km (0.112 R)
• M6: 1,739,674 km (0.09 R)
• M7: 2,399,400 km (0.094 R)
• M8: 2,978,344 km (0.107 R)
• M9: 3,551,603 km (0.056 R)
• M10: 3,889,096 km (0.041 R)
• M11: 4,065,771 km (0.114 R)
• M12: 5,240,862 km (0.087 R)
• M13: 5,775,226 km (0.082 R)
• M14: 7,635,326 km (0.09 R)
• M15: 8,074,545 km (0.093 R)
• M16: 8,872,500 km (0.092 R)
• M17: 10,526,454 km (0.071 R)
• M18: 15,287,406 km (0.076 R)
• M19: 20,922,010 km (0.095 R)
• M20: 25,890,006 km (0.118 R)
• M21: 30,389,012 km (0.118 R)
• M22: 38,649,358 km (0.097 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 13,506 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit