🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.6

Radius: 13.4

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.63 AU - 0.93 AU

Year: 445 Days

Day: 10.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,349,131 km

• M1: 166,652 km (0.114 R)
• M2: 835,803 km (0.069 R)
• M3: 1,283,101 km (0.092 R)
• M4: 2,068,639 km (0.101 R)
• M5: 2,487,813 km (0.118 R)
• M6: 2,964,581 km (0.106 R)
• M7: 4,287,924 km (0.069 R)
• M8: 4,807,477 km (0.059 R)
• M9: 5,902,534 km (0.106 R)
• M10: 6,490,453 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.2

Radius: 13

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.64 AU - 1.04 AU

Year: 497 Days

Day: 15 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,349,131 km

• M1: 161,715 km (0.114 R)
• M2: 606,171 km (0.086 R)
• M3: 1,013,077 km (0.086 R)
• M4: 2,170,815 km (0.092 R)
• M5: 3,140,508 km (0.104 R)
• M6: 3,691,477 km (0.05 R)
• M7: 5,724,811 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.3

Radius: 11.7

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.23 AU - 1.41 AU

Year: 979 Days

Day: 12.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,349,131 km

• M1: 146,157 km (0.1 R)
• M2: 702,362 km (0.101 R)
• M3: 1,233,135 km (0.102 R)
• M4: 1,758,673 km (0.06 R)
• M5: 2,582,358 km (0.115 R)
• M6: 3,102,809 km (0.116 R)
• M7: 3,879,073 km (0.032 R)
• M8: 4,288,223 km (0.094 R)
• M9: 4,817,201 km (0.071 R)
• M10: 5,232,485 km (0.103 R)
• M11: 5,733,488 km (0.095 R)
• M12: 6,222,523 km (0.113 R)
• M13: 6,739,234 km (0.114 R)
• M14: 7,580,573 km (0.114 R)
• M15: 8,013,808 km (0.091 R)
• M16: 8,986,194 km (0.044 R)
• M17: 9,530,282 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.2

Radius: 10.7

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.13 AU - 3.23 AU

Year: 2833 Days

Day: 6.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,349,131 km

• M1: 133,142 km (0.105 R)
• M2: 541,395 km (0.107 R)
• M3: 994,527 km (0.093 R)
• M4: 1,387,071 km (0.041 R)
• M5: 2,135,210 km (0.117 R)
• M6: 2,526,259 km (0.036 R)
• M7: 3,399,612 km (0.097 R)
• M8: 3,797,392 km (0.091 R)
• M9: 4,247,233 km (0.072 R)
• M10: 4,871,206 km (0.093 R)
• M11: 6,027,897 km (0.055 R)
• M12: 6,613,273 km (0.11 R)
• M13: 8,093,993 km (0.113 R)
• M14: 9,524,597 km (0.093 R)
• M15: 10,241,919 km (0.048 R)
• M16: 11,488,967 km (0.064 R)
• M17: 11,998,048 km (0.095 R)
• M18: 14,871,674 km (0.06 R)
• M19: 15,222,631 km (0.071 R)
• M20: 16,045,419 km (0.114 R)
• M21: 17,006,286 km (0.1 R)
• M22: 17,723,907 km (0.1 R)
• M23: 18,576,764 km (0.119 R)
• M24: 19,816,482 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 10.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.63 AU - 3.61 AU

Year: 3558 Days

Day: 14.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,349,131 km

• M1: 131,796 km (0.106 R)
• M2: 485,744 km (0.114 R)
• M3: 847,173 km (0.096 R)
• M4: 1,198,578 km (0.109 R)
• M5: 1,544,448 km (0.046 R)
• M6: 1,933,852 km (0.087 R)
• M7: 2,835,179 km (0.095 R)
• M8: 4,056,346 km (0.05 R)
• M9: 5,325,983 km (0.111 R)
• M10: 5,777,320 km (0.116 R)
• M11: 7,048,154 km (0.108 R)
• M12: 8,231,473 km (0.109 R)
• M13: 8,563,880 km (0.066 R)
• M14: 10,021,561 km (0.117 R)
• M15: 10,400,942 km (0.094 R)
• M16: 12,015,402 km (0.067 R)
• M17: 13,016,062 km (0.067 R)
• M18: 18,526,350 km (0.062 R)
• M19: 19,156,606 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.8

Radius: 11.5

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.23 AU - 4.03 AU

Year: 4466 Days

Day: 12 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,349,131 km

• M1: 143,016 km (0.115 R)
• M2: 578,046 km (0.104 R)
• M3: 1,307,336 km (0.085 R)
• M4: 1,710,502 km (0.106 R)
• M5: 2,289,745 km (0.096 R)
• M6: 3,150,382 km (0.081 R)
• M7: 4,214,770 km (0.062 R)
• M8: 6,132,166 km (0.104 R)
• M9: 6,511,547 km (0.108 R)
• M10: 8,456,618 km (0.104 R)
• M11: 8,887,909 km (0.113 R)
• M12: 12,835,497 km (0.103 R)
• M13: 16,944,053 km (0.061 R)
• M14: 17,631,007 km (0.105 R)
• M15: 18,532,035 km (0.026 R)
• M16: 19,599,116 km (0.099 R)
• M17: 20,078,727 km (0.094 R)
• M18: 22,149,311 km (0.07 R)
• M19: 22,520,164 km (0.047 R)
• M20: 24,912,982 km (0.048 R)
• M21: 27,385,536 km (0.11 R)
• M22: 27,985,124 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.5

Radius: 4.2

Gravity: 39.37 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 5.78 AU - 6.3 AU

Year: 9585 Days

Day: 21.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,349,131 km

• M1: 52,658 km (0.08 R)
• M2: 294,259 km (0.065 R)
• M3: 606,470 km (0.113 R)
• M4: 922,420 km (0.104 R)
• M5: 1,570,030 km (0.078 R)
• M6: 2,197,593 km (0.104 R)
• M7: 2,577,571 km (0.085 R)
• M8: 3,227,873 km (0.085 R)
• M9: 4,485,842 km (0.091 R)
• M10: 7,916,719 km (0.113 R)
• M11: 8,307,768 km (0.079 R)
• M12: 10,253,288 km (0.063 R)
• M13: 14,115,307 km (0.096 R)
• M14: 15,213,206 km (0.098 R)
• M15: 16,090,298 km (0.099 R)
• M16: 17,000,452 km (0.079 R)
• M17: 24,262,680 km (0.096 R)
• M18: 29,482,748 km (0.1 R)
• M19: 40,649,930 km (0.085 R)
• M20: 46,810,221 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.3

Radius: 4.5

Gravity: 43.42 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.05 AU - 9.97 AU

Year: 16029 Days

Day: 22 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,349,131 km

• M1: 55,950 km (0.079 R)
• M2: 208,988 km (0.099 R)
• M3: 359,035 km (0.092 R)
• M4: 815,159 km (0.107 R)
• M5: 993,031 km (0.109 R)
• M6: 1,506,451 km (0.092 R)
• M7: 1,961,677 km (0.062 R)
• M8: 4,030,017 km (0.078 R)
• M9: 5,041,747 km (0.05 R)
• M10: 5,337,951 km (0.057 R)
• M11: 6,254,089 km (0.106 R)
• M12: 7,600,469 km (0.081 R)
• M13: 10,973,153 km (0.103 R)
• M14: 14,110,520 km (0.08 R)
• M15: 16,079,527 km (0.11 R)
• M16: 17,047,126 km (0.105 R)
• M17: 17,461,512 km (0.076 R)
• M18: 23,374,667 km (0.044 R)
• M19: 24,092,737 km (0.114 R)
• M20: 24,825,318 km (0.107 R)
• M21: 26,006,243 km (0.103 R)
• M22: 35,742,970 km (0.042 R)
• M23: 41,412,730 km (0.108 R)
• M24: 43,070,723 km (0.107 R)
• M25: 45,086,704 km (0.085 R)
• M26: 45,560,780 km (0.084 R)
• M27: 51,682,923 km (0.088 R)
• M28: 55,933,896 km (0.118 R)
• M29: 60,412,108 km (0.07 R)
• M30: 70,073,587 km (0.057 R)
• M31: 71,349,059 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 19,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit