🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923

Radius: 10.9

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.56 AU - 0.9 AU

Year: 438 Days

Day: 13.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,661,991 km

• M1: 135,536 km (0.073 R)
• M2: 545,135 km (0.116 R)
• M3: 985,700 km (0.054 R)
• M4: 1,486,704 km (0.043 R)
• M5: 1,906,026 km (0.098 R)
• M6: 2,492,151 km (0.094 R)
• M7: 2,910,127 km (0.115 R)
• M8: 3,374,928 km (0.119 R)
• M9: 4,308,119 km (0.039 R)
• M10: 6,334,423 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.9

Radius: 9.5

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.76 AU - 0.92 AU

Year: 541 Days

Day: 8.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,661,991 km

• M1: 118,182 km (0.096 R)
• M2: 414,536 km (0.083 R)
• M3: 779,255 km (0.115 R)
• M4: 1,096,403 km (0.091 R)
• M5: 1,401,283 km (0.112 R)
• M6: 2,288,698 km (0.054 R)
• M7: 2,970,415 km (0.105 R)
• M8: 3,575,539 km (0.049 R)
• M9: 3,901,064 km (0.039 R)
• M10: 4,935,683 km (0.085 R)
• M11: 5,663,027 km (0.077 R)
• M12: 5,998,426 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.5

Radius: 8.8

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.98 AU - 1.14 AU

Year: 767 Days

Day: 8.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,661,991 km

• M1: 109,506 km (0.071 R)
• M2: 395,088 km (0.102 R)
• M3: 695,481 km (0.12 R)
• M4: 1,113,906 km (0.105 R)
• M5: 1,392,756 km (0.059 R)
• M6: 1,841,699 km (0.053 R)
• M7: 2,189,664 km (0.094 R)
• M8: 2,777,434 km (0.108 R)
• M9: 3,054,789 km (0.076 R)
• M10: 3,972,272 km (0.075 R)
• M11: 4,732,678 km (0.057 R)
• M12: 6,971,560 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.4

Radius: 14.3

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.27 AU - 1.63 AU

Year: 1227 Days

Day: 8.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,661,991 km

• M1: 177,872 km (0.098 R)
• M2: 814,411 km (0.079 R)
• M3: 1,284,597 km (0.1 R)
• M4: 1,814,473 km (0.09 R)
• M5: 2,605,995 km (0.104 R)
• M6: 3,155,767 km (0.094 R)
• M7: 3,767,622 km (0.106 R)
• M8: 4,390,398 km (0.075 R)
• M9: 5,424,269 km (0.112 R)
• M10: 6,136,056 km (0.116 R)
• M11: 6,637,059 km (0.118 R)
• M12: 7,722,092 km (0.059 R)
• M13: 8,307,319 km (0.091 R)
• M14: 9,059,797 km (0.111 R)
• M15: 9,624,828 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.2

Radius: 10.4

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.72 AU - 2.1 AU

Year: 1855 Days

Day: 14.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,661,991 km

• M1: 129,402 km (0.116 R)
• M2: 452,833 km (0.114 R)
• M3: 1,471,145 km (0.118 R)
• M4: 1,809,386 km (0.055 R)
• M5: 2,251,598 km (0.104 R)
• M6: 3,273,949 km (0.059 R)
• M7: 5,092,461 km (0.029 R)
• M8: 6,746,266 km (0.05 R)
• M9: 7,940,356 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.1

Radius: 6.5

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.72 AU - 8.04 AU

Year: 12685 Days

Day: 15.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,661,991 km

• M1: 146,756 km (0.101 R)
• M2: 553,213 km (0.089 R)
• M3: 1,463,666 km (0.049 R)
• M4: 3,080,519 km (0.032 R)
• M5: 4,978,318 km (0.065 R)
• M6: 6,045,848 km (0.119 R)
• M7: 6,941,042 km (0.105 R)
• M8: 8,489,829 km (0.04 R)
• M9: 11,414,467 km (0.101 R)
• M10: 13,678,930 km (0.05 R)
• M11: 14,560,062 km (0.028 R)
• M12: 16,504,535 km (0.028 R)
• M13: 16,856,538 km (0.037 R)
• M14: 20,574,943 km (0.058 R)
• M15: 22,152,901 km (0.067 R)
• M16: 30,311,371 km (0.075 R)
• M17: 36,459,843 km (0.088 R)
• M18: 38,147,906 km (0.047 R)
• M19: 38,887,069 km (0.097 R)
• M20: 46,531,370 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.9

Radius: 5.8

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 7.18 AU - 9.9 AU

Year: 17543 Days

Day: 21.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,661,991 km

• M1: 72,106 km (0.064 R)
• M2: 384,766 km (0.101 R)
• M3: 678,875 km (0.092 R)
• M4: 4,863,576 km (0.082 R)
• M5: 6,329,935 km (0.055 R)
• M6: 7,512,655 km (0.079 R)
• M7: 10,255,832 km (0.058 R)
• M8: 11,319,472 km (0.091 R)
• M9: 11,708,577 km (0.075 R)
• M10: 16,173,475 km (0.103 R)
• M11: 30,123,476 km (0.081 R)
• M12: 41,600,475 km (0.112 R)
• M13: 42,793,219 km (0.041 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 10,741 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit