🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.3

Radius: 9.9

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.62 AU - 0.76 AU

Year: 389 Days

Day: 5.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,146,012 km

• M1: 123,269 km (0.105 R)
• M2: 445,054 km (0.106 R)
• M3: 823,985 km (0.092 R)
• M4: 1,730,099 km (0.116 R)
• M5: 2,708,469 km (0.097 R)
• M6: 3,477,552 km (0.094 R)
• M7: 4,058,291 km (0.031 R)
• M8: 4,399,225 km (0.105 R)
• M9: 5,019,906 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.3

Radius: 9.8

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.98 AU - 1.18 AU

Year: 761 Days

Day: 11.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,146,012 km

• M1: 122,221 km (0.094 R)
• M2: 600,037 km (0.084 R)
• M3: 996,621 km (0.11 R)
• M4: 1,367,325 km (0.074 R)
• M5: 1,764,058 km (0.107 R)
• M6: 2,132,218 km (0.073 R)
• M7: 2,736,893 km (0.098 R)
• M8: 3,122,706 km (0.114 R)
• M9: 3,491,614 km (0.05 R)
• M10: 3,875,333 km (0.114 R)
• M11: 4,647,108 km (0.06 R)
• M12: 5,518,067 km (0.106 R)
• M13: 5,983,017 km (0.073 R)
• M14: 7,034,092 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.4

Radius: 12.8

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.9 AU - 1.42 AU

Year: 847 Days

Day: 7.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,146,012 km

• M1: 159,771 km (0.115 R)
• M2: 786,735 km (0.102 R)
• M3: 1,398,441 km (0.062 R)
• M4: 1,847,982 km (0.109 R)
• M5: 2,316,074 km (0.111 R)
• M6: 3,267,517 km (0.101 R)
• M7: 3,988,429 km (0.078 R)
• M8: 4,479,559 km (0.085 R)
• M9: 5,128,963 km (0.1 R)
• M10: 6,925,185 km (0.077 R)
• M11: 7,373,380 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.2

Radius: 13.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.06 AU - 1.74 AU

Year: 1124 Days

Day: 12.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,146,012 km

• M1: 170,990 km (0.052 R)
• M2: 708,047 km (0.116 R)
• M3: 1,463,366 km (0.068 R)
• M4: 1,912,908 km (0.074 R)
• M5: 2,864,650 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.9

Radius: 14.1

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.68 AU - 2.06 AU

Year: 1734 Days

Day: 5.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,146,012 km

• M1: 176,825 km (0.069 R)
• M2: 628,311 km (0.072 R)
• M3: 1,206,357 km (0.113 R)
• M4: 1,663,379 km (0.033 R)
• M5: 2,104,842 km (0.107 R)
• M6: 2,544,959 km (0.12 R)
• M7: 3,501,937 km (0.048 R)
• M8: 4,764,543 km (0.081 R)
• M9: 5,744,857 km (0.077 R)
• M10: 6,274,135 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.8

Radius: 15

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.4 AU - 3.06 AU

Year: 3059 Days

Day: 13.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,146,012 km

• M1: 186,549 km (0.119 R)
• M2: 1,231,340 km (0.11 R)
• M3: 2,351,080 km (0.111 R)
• M4: 2,963,983 km (0.112 R)
• M5: 3,823,871 km (0.072 R)
• M6: 4,448,143 km (0.117 R)
• M7: 5,040,251 km (0.051 R)
• M8: 8,057,790 km (0.094 R)
• M9: 9,052,466 km (0.114 R)
• M10: 10,087,833 km (0.049 R)
• M11: 11,286,262 km (0.057 R)
• M12: 12,302,779 km (0.075 R)
• M13: 14,366,183 km (0.085 R)
• M14: 16,595,640 km (0.099 R)
• M15: 18,622,990 km (0.059 R)
• M16: 19,727,621 km (0.048 R)
• M17: 21,333,853 km (0.035 R)
• M18: 23,444,829 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.5

Radius: 6.8

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.71 AU - 11.21 AU

Year: 19735 Days

Day: 15.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,146,012 km

• M1: 84,672 km (0.099 R)
• M2: 349,461 km (0.106 R)
• M3: 904,469 km (0.114 R)
• M4: 1,202,318 km (0.073 R)
• M5: 1,738,926 km (0.051 R)
• M6: 2,165,429 km (0.086 R)
• M7: 2,615,868 km (0.105 R)
• M8: 4,104,068 km (0.077 R)
• M9: 4,695,279 km (0.025 R)
• M10: 6,007,252 km (0.073 R)
• M11: 7,021,675 km (0.082 R)
• M12: 8,288,470 km (0.067 R)
• M13: 9,437,382 km (0.07 R)
• M14: 9,860,893 km (0.08 R)
• M15: 12,864,220 km (0.119 R)
• M16: 14,747,956 km (0.087 R)
• M17: 15,535,888 km (0.031 R)
• M18: 18,229,847 km (0.051 R)
• M19: 23,932,817 km (0.097 R)
• M20: 25,830,616 km (0.058 R)
• M21: 27,291,439 km (0.119 R)
• M22: 33,443,502 km (0.072 R)
• M23: 38,153,890 km (0.096 R)
• M24: 41,014,799 km (0.062 R)
• M25: 42,283,389 km (0.086 R)
• M26: 42,999,514 km (0.117 R)
• M27: 44,603,204 km (0.091 R)
• M28: 49,021,427 km (0.04 R)
• M29: 59,607,122 km (0.105 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: 254 - 18,611 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit