🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.5

Radius: 15

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.66 AU - 1.04 AU

Year: 506 Days

Day: 14.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,889,734 km

• M1: 186,549 km (0.067 R)
• M2: 725,699 km (0.079 R)
• M3: 1,793,379 km (0.054 R)
• M4: 2,335,073 km (0.119 R)
• M5: 3,127,044 km (0.115 R)
• M6: 4,646,510 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.4

Radius: 10.7

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.92 AU - 1.08 AU

Year: 646 Days

Day: 7.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,889,734 km

• M1: 134,788 km (0.1 R)
• M2: 468,541 km (0.069 R)
• M3: 931,396 km (0.114 R)
• M4: 1,357,152 km (0.103 R)
• M5: 1,838,109 km (0.111 R)
• M6: 2,430,965 km (0.118 R)
• M7: 3,201,245 km (0.1 R)
• M8: 4,737,316 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.3

Radius: 11

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.82 AU - 1.34 AU

Year: 725 Days

Day: 6.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,889,734 km

• M1: 137,181 km (0.04 R)
• M2: 525,687 km (0.087 R)
• M3: 912,846 km (0.041 R)
• M4: 1,932,356 km (0.098 R)
• M5: 2,746,019 km (0.096 R)
• M6: 3,259,588 km (0.088 R)
• M7: 3,640,763 km (0.041 R)
• M8: 4,343,125 km (0.062 R)
• M9: 4,997,915 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.5

Radius: 10.9

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.94 AU - 1.26 AU

Year: 745 Days

Day: 13.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,889,734 km

• M1: 135,536 km (0.05 R)
• M2: 497,263 km (0.101 R)
• M3: 1,088,624 km (0.119 R)
• M4: 1,567,038 km (0.042 R)
• M5: 2,067,293 km (0.095 R)
• M6: 2,919,253 km (0.095 R)
• M7: 3,459,900 km (0.085 R)
• M8: 4,931,793 km (0.103 R)
• M9: 5,288,584 km (0.07 R)
• M10: 5,739,771 km (0.055 R)
• M11: 6,319,014 km (0.054 R)
• M12: 6,697,945 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.9

Radius: 10.7

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.79 AU - 2.97 AU

Year: 2371 Days

Day: 7.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,889,734 km

• M1: 132,993 km (0.08 R)
• M2: 661,073 km (0.054 R)
• M3: 1,101,340 km (0.115 R)
• M4: 1,565,093 km (0.099 R)
• M5: 2,586,996 km (0.062 R)
• M6: 3,277,689 km (0.071 R)
• M7: 3,809,959 km (0.09 R)
• M8: 5,359,045 km (0.065 R)
• M9: 6,481,029 km (0.053 R)
• M10: 7,975,062 km (0.108 R)
• M11: 9,577,704 km (0.05 R)
• M12: 10,359,204 km (0.082 R)
• M13: 11,222,982 km (0.056 R)
• M14: 11,755,401 km (0.039 R)
• M15: 12,304,874 km (0.071 R)
• M16: 13,273,370 km (0.12 R)
• M17: 13,776,468 km (0.065 R)
• M18: 14,434,998 km (0.075 R)
• M19: 14,918,049 km (0.09 R)
• M20: 15,713,461 km (0.092 R)
• M21: 17,066,125 km (0.118 R)
• M22: 17,825,783 km (0.046 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.8

Radius: 7.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.45 AU - 8.79 AU

Year: 12267 Days

Day: 16.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,889,734 km

• M1: 88,562 km (0.089 R)
• M2: 631,153 km (0.11 R)
• M3: 1,269,787 km (0.073 R)
• M4: 1,886,429 km (0.117 R)
• M5: 3,871,742 km (0.081 R)
• M6: 5,769,092 km (0.058 R)
• M7: 7,254,150 km (0.108 R)
• M8: 7,635,475 km (0.087 R)
• M9: 18,548,042 km (0.114 R)
• M10: 21,866,122 km (0.096 R)
• M11: 26,361,538 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.1

Radius: 7.5

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.33 AU - 8.41 AU

Year: 12919 Days

Day: 23.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,889,734 km

• M1: 123,867 km (0.094 R)
• M2: 647,759 km (0.083 R)
• M3: 1,076,805 km (0.089 R)
• M4: 1,356,404 km (0.053 R)
• M5: 1,972,298 km (0.105 R)
• M6: 3,721,845 km (0.082 R)
• M7: 6,148,772 km (0.073 R)
• M8: 7,272,700 km (0.042 R)
• M9: 12,339,580 km (0.103 R)
• M10: 12,606,613 km (0.069 R)
• M11: 15,064,655 km (0.055 R)
• M12: 34,619,939 km (0.093 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 18,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit