🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.1

Radius: 11.9

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.52 AU - 0.58 AU

Year: 272 Days

Day: 8.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 54,956,133 km

• M1: 147,952 km (0.081 R)
• M2: 611,257 km (0.114 R)
• M3: 1,096,852 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.1

Radius: 10

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.59 AU - 0.69 AU

Year: 341 Days

Day: 6.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,956,133 km

• M1: 124,465 km (0.093 R)
• M2: 617,241 km (0.113 R)
• M3: 994,676 km (0.064 R)
• M4: 1,374,206 km (0.09 R)
• M5: 1,747,004 km (0.117 R)
• M6: 2,078,363 km (0.067 R)
• M7: 2,486,466 km (0.091 R)
• M8: 2,937,953 km (0.093 R)
• M9: 3,314,790 km (0.105 R)
• M10: 3,982,595 km (0.117 R)
• M11: 4,304,380 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.1

Radius: 10.3

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.61 AU - 0.69 AU

Year: 349 Days

Day: 8.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,956,133 km

• M1: 128,355 km (0.043 R)
• M2: 851,361 km (0.104 R)
• M3: 1,689,558 km (0.074 R)
• M4: 3,156,365 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322

Radius: 14.4

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.63 AU - 0.95 AU

Year: 468 Days

Day: 8.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,956,133 km

• M1: 179,069 km (0.066 R)
• M2: 768,933 km (0.111 R)
• M3: 1,268,889 km (0.059 R)
• M4: 1,948,512 km (0.053 R)
• M5: 2,408,825 km (0.075 R)
• M6: 4,064,125 km (0.064 R)
• M7: 4,703,207 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.5

Radius: 13.3

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.26 AU - 2.86 AU

Year: 2731 Days

Day: 12.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,956,133 km

• M1: 174,431 km (0.067 R)
• M2: 769,531 km (0.1 R)
• M3: 1,186,012 km (0.063 R)
• M4: 1,650,364 km (0.096 R)
• M5: 2,069,088 km (0.112 R)
• M6: 2,530,747 km (0.075 R)
• M7: 3,390,037 km (0.076 R)
• M8: 3,898,371 km (0.109 R)
• M9: 5,165,016 km (0.1 R)
• M10: 5,711,796 km (0.114 R)
• M11: 6,463,526 km (0.101 R)
• M12: 9,921,032 km (0.091 R)
• M13: 12,433,677 km (0.104 R)
• M14: 13,282,047 km (0.068 R)
• M15: 13,697,181 km (0.054 R)
• M16: 14,264,307 km (0.103 R)
• M17: 14,699,786 km (0.037 R)
• M18: 15,294,288 km (0.082 R)
• M19: 18,283,702 km (0.03 R)
• M20: 19,204,776 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.3

Radius: 9.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.36 AU - 2.78 AU

Year: 2747 Days

Day: 6.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,956,133 km

• M1: 122,820 km (0.062 R)
• M2: 452,234 km (0.09 R)
• M3: 919,429 km (0.108 R)
• M4: 1,476,681 km (0.073 R)
• M5: 2,278,525 km (0.046 R)
• M6: 3,444,641 km (0.102 R)
• M7: 4,264,287 km (0.104 R)
• M8: 5,533,476 km (0.062 R)
• M9: 5,891,912 km (0.112 R)
• M10: 6,545,804 km (0.113 R)
• M11: 7,317,580 km (0.067 R)
• M12: 8,149,045 km (0.069 R)
• M13: 8,483,097 km (0.115 R)
• M14: 9,123,974 km (0.104 R)
• M15: 9,456,231 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.5

Radius: 12.3

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.37 AU - 3.91 AU

Year: 4631 Days

Day: 7.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,956,133 km

• M1: 153,039 km (0.097 R)
• M2: 818,749 km (0.054 R)
• M3: 1,339,948 km (0.066 R)
• M4: 1,735,186 km (0.076 R)
• M5: 3,888,946 km (0.109 R)
• M6: 4,838,743 km (0.046 R)
• M7: 5,314,016 km (0.075 R)
• M8: 5,705,064 km (0.038 R)
• M9: 6,145,481 km (0.074 R)
• M10: 6,545,655 km (0.08 R)
• M11: 7,959,056 km (0.098 R)
• M12: 12,177,715 km (0.087 R)
• M13: 16,024,924 km (0.095 R)
• M14: 17,756,070 km (0.106 R)
• M15: 19,345,847 km (0.111 R)
• M16: 20,344,114 km (0.078 R)
• M17: 27,232,497 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.6

Radius: 3.4

Gravity: 72.46 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.43 AU - 7.61 AU

Year: 11102 Days

Day: 19.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,956,133 km

• M1: 42,336 km (0.107 R)
• M2: 149,598 km (0.099 R)
• M3: 437,125 km (0.056 R)
• M4: 651,200 km (0.1 R)
• M5: 952,789 km (0.065 R)
• M6: 1,662,481 km (0.045 R)
• M7: 1,858,604 km (0.115 R)
• M8: 3,127,493 km (0.118 R)
• M9: 3,452,420 km (0.087 R)
• M10: 4,408,350 km (0.063 R)
• M11: 4,531,320 km (0.085 R)
• M12: 4,688,248 km (0.085 R)
• M13: 5,113,255 km (0.112 R)
• M14: 6,662,341 km (0.077 R)
• M15: 8,034,004 km (0.104 R)
• M16: 10,158,443 km (0.113 R)
• M17: 14,984,172 km (0.103 R)
• M18: 16,046,017 km (0.093 R)
• M19: 19,284,213 km (0.097 R)
• M20: 23,958,398 km (0.119 R)
• M21: 25,406,506 km (0.031 R)
• M22: 30,430,900 km (0.066 R)
• M23: 31,554,978 km (0.066 R)
• M24: 33,410,440 km (0.111 R)
• M25: 40,880,461 km (0.082 R)
• M26: 43,645,179 km (0.083 R)
• M27: 45,507,373 km (0.093 R)
• M28: 45,798,640 km (0.088 R)
• M29: 46,237,560 km (0.084 R)
• M30: 48,021,814 km (0.083 R)
• M31: 52,043,902 km (0.069 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 18,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit