🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.7

Radius: 12.8

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.5 AU - 0.82 AU

Year: 377 Days

Day: 6.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,657,139 km

• M1: 159,172 km (0.04 R)
• M2: 582,085 km (0.032 R)
• M3: 994,676 km (0.042 R)
• M4: 1,410,858 km (0.105 R)
• M5: 1,815,370 km (0.101 R)
• M6: 2,444,429 km (0.107 R)
• M7: 2,910,127 km (0.103 R)
• M8: 3,353,087 km (0.079 R)
• M9: 3,802,927 km (0.114 R)
• M10: 4,404,610 km (0.1 R)
• M11: 5,225,753 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877

Radius: 13.4

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.57 AU - 0.85 AU

Year: 421 Days

Day: 8.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,657,139 km

• M1: 166,652 km (0.075 R)
• M2: 636,988 km (0.088 R)
• M3: 1,355,955 km (0.067 R)
• M4: 2,076,418 km (0.093 R)
• M5: 2,920,599 km (0.058 R)
• M6: 3,532,754 km (0.074 R)
• M7: 4,009,971 km (0.095 R)
• M8: 5,191,345 km (0.105 R)
• M9: 5,916,147 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.9

Radius: 14.4

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.69 AU - 1.13 AU

Year: 610 Days

Day: 5.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,657,139 km

• M1: 179,069 km (0.07 R)
• M2: 639,980 km (0.037 R)
• M3: 1,128,417 km (0.12 R)
• M4: 1,641,687 km (0.073 R)
• M5: 2,094,370 km (0.104 R)
• M6: 2,597,917 km (0.052 R)
• M7: 3,465,883 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 8.9

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.04 AU - 1.04 AU

Year: 746 Days

Day: 8.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,657,139 km

• M1: 110,702 km (0.092 R)
• M2: 743,202 km (0.057 R)
• M3: 1,222,364 km (0.095 R)
• M4: 1,694,345 km (0.088 R)
• M5: 2,068,191 km (0.11 R)
• M6: 3,014,696 km (0.07 R)
• M7: 3,591,097 km (0.036 R)
• M8: 4,147,451 km (0.12 R)
• M9: 4,508,132 km (0.102 R)
• M10: 4,846,223 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.4

Radius: 9

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.54 AU - 2.38 AU

Year: 1929 Days

Day: 6.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 127.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,657,139 km

• M1: 112,348 km (0.046 R)
• M2: 461,210 km (0.059 R)
• M3: 798,105 km (0.086 R)
• M4: 1,219,821 km (0.093 R)
• M5: 1,654,852 km (0.109 R)
• M6: 1,996,982 km (0.091 R)
• M7: 2,316,074 km (0.05 R)
• M8: 3,100,565 km (0.083 R)
• M9: 4,207,739 km (0.091 R)
• M10: 4,512,620 km (0.103 R)
• M11: 5,247,893 km (0.074 R)
• M12: 6,808,349 km (0.086 R)
• M13: 7,616,177 km (0.106 R)
• M14: 7,989,125 km (0.066 R)
• M15: 8,887,460 km (0.107 R)
• M16: 9,451,893 km (0.104 R)
• M17: 10,784,361 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.3

Radius: 12.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.69 AU - 5.45 AU

Year: 8025 Days

Day: 13.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,657,139 km

• M1: 155,881 km (0.042 R)
• M2: 693,835 km (0.112 R)
• M3: 1,410,558 km (0.073 R)
• M4: 3,013,500 km (0.075 R)
• M5: 3,468,875 km (0.081 R)
• M6: 3,970,028 km (0.109 R)
• M7: 5,438,631 km (0.111 R)
• M8: 7,443,092 km (0.053 R)
• M9: 8,238,205 km (0.116 R)
• M10: 9,997,775 km (0.114 R)
• M11: 15,406,786 km (0.059 R)
• M12: 18,805,799 km (0.1 R)
• M13: 23,808,651 km (0.118 R)
• M14: 30,358,494 km (0.114 R)
• M15: 34,156,784 km (0.091 R)
• M16: 36,346,149 km (0.057 R)
• M17: 37,056,440 km (0.08 R)
• M18: 39,615,910 km (0.116 R)
• M19: 41,901,765 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 276.8

Radius: 3.8

Gravity: 19.17 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.82 AU - 7.78 AU

Year: 12464 Days

Day: 16 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 34,657,139 km

• M1: 47,572 km (0.1 R)
• M2: 182,809 km (0.063 R)
• M3: 454,628 km (0.11 R)
• M4: 727,046 km (0.099 R)
• M5: 1,036,863 km (0.088 R)
• M6: 1,165,218 km (0.09 R)
• M7: 2,024,358 km (0.06 R)
• M8: 2,554,683 km (0.071 R)
• M9: 3,708,830 km (0.11 R)
• M10: 4,385,611 km (0.103 R)
• M11: 4,811,516 km (0.053 R)
• M12: 5,202,565 km (0.119 R)
• M13: 5,390,011 km (0.07 R)
• M14: 5,878,299 km (0.055 R)
• M15: 7,441,297 km (0.094 R)
• M16: 7,881,713 km (0.098 R)
• M17: 9,865,082 km (0.118 R)
• M18: 13,224,153 km (0.046 R)
• M19: 20,490,869 km (0.078 R)
• M20: 24,086,155 km (0.057 R)
• M21: 25,760,753 km (0.108 R)
• M22: 27,417,251 km (0.042 R)
• M23: 28,080,119 km (0.096 R)
• M24: 28,753,608 km (0.043 R)
• M25: 35,418,493 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.6

Radius: 3

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 8.27 AU - 9.43 AU

Year: 18506 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,657,139 km

• M1: 67,020 km (0.08 R)
• M2: 246,088 km (0.108 R)
• M3: 674,238 km (0.105 R)
• M4: 1,038,957 km (0.115 R)
• M5: 1,338,901 km (0.1 R)
• M6: 1,446,611 km (0.104 R)
• M7: 3,191,970 km (0.094 R)
• M8: 4,236,313 km (0.116 R)
• M9: 8,011,864 km (0.081 R)
• M10: 11,709,474 km (0.081 R)
• M11: 11,911,880 km (0.069 R)
• M12: 17,366,817 km (0.106 R)
• M13: 29,068,213 km (0.088 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 15,940 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit