🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.5

Radius: 13.4

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.47 AU - 0.77 AU

Year: 337 Days

Day: 8.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,532,447 km

• M1: 169,046 km (0.092 R)
• M2: 805,585 km (0.052 R)
• M3: 1,502,411 km (0.026 R)
• M4: 2,044,255 km (0.034 R)
• M5: 2,666,732 km (0.027 R)
• M6: 3,566,862 km (0.055 R)
• M7: 5,015,418 km (0.039 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.5

Radius: 13.1

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.55 AU - 0.87 AU

Year: 413 Days

Day: 7.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 120.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,532,447 km

• M1: 162,912 km (0.116 R)
• M2: 679,474 km (0.112 R)
• M3: 1,156,691 km (0.108 R)
• M4: 1,653,206 km (0.105 R)
• M5: 2,532,094 km (0.111 R)
• M6: 3,702,547 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.1

Radius: 10.3

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.79 AU - 0.91 AU

Year: 541 Days

Day: 7.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,532,447 km

• M1: 128,205 km (0.101 R)
• M2: 547,079 km (0.114 R)
• M3: 897,138 km (0.045 R)
• M4: 1,324,988 km (0.081 R)
• M5: 1,699,133 km (0.112 R)
• M6: 2,099,606 km (0.114 R)
• M7: 2,593,728 km (0.068 R)
• M8: 3,140,658 km (0.092 R)
• M9: 3,568,059 km (0.045 R)
• M10: 3,910,488 km (0.074 R)
• M11: 4,347,613 km (0.091 R)
• M12: 4,927,754 km (0.119 R)
• M13: 5,337,054 km (0.038 R)
• M14: 5,768,943 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.6

Radius: 13.5

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.1 AU - 2.46 AU

Year: 2376 Days

Day: 6.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,532,447 km

• M1: 167,998 km (0.114 R)
• M2: 610,060 km (0.093 R)
• M3: 1,110,764 km (0.039 R)
• M4: 1,544,448 km (0.103 R)
• M5: 2,244,566 km (0.079 R)
• M6: 2,788,056 km (0.025 R)
• M7: 3,891,489 km (0.117 R)
• M8: 4,682,713 km (0.057 R)
• M9: 5,174,740 km (0.095 R)
• M10: 6,080,854 km (0.059 R)
• M11: 9,062,041 km (0.077 R)
• M12: 11,940,453 km (0.105 R)
• M13: 14,153,305 km (0.1 R)
• M14: 14,805,851 km (0.108 R)
• M15: 15,625,049 km (0.106 R)
• M16: 16,171,231 km (0.106 R)
• M17: 16,936,424 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926

Radius: 10.3

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.78 AU - 2.82 AU

Year: 2408 Days

Day: 7.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 125.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,532,447 km

• M1: 128,056 km (0.101 R)
• M2: 494,720 km (0.1 R)
• M3: 943,514 km (0.118 R)
• M4: 1,482,216 km (0.081 R)
• M5: 1,948,662 km (0.109 R)
• M6: 2,864,051 km (0.11 R)
• M7: 3,214,559 km (0.1 R)
• M8: 3,537,990 km (0.098 R)
• M9: 4,043,780 km (0.094 R)
• M10: 5,446,559 km (0.082 R)
• M11: 6,453,054 km (0.105 R)
• M12: 7,610,193 km (0.103 R)
• M13: 7,992,865 km (0.12 R)
• M14: 8,388,102 km (0.112 R)
• M15: 9,325,632 km (0.113 R)
• M16: 9,913,402 km (0.084 R)
• M17: 10,293,081 km (0.102 R)
• M18: 12,779,398 km (0.115 R)
• M19: 13,597,250 km (0.114 R)
• M20: 15,337,372 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.7

Radius: 12.1

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.82 AU - 6.18 AU

Year: 8903 Days

Day: 14.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,532,447 km

• M1: 150,495 km (0.094 R)
• M2: 558,598 km (0.07 R)
• M3: 1,010,833 km (0.056 R)
• M4: 1,569,431 km (0.12 R)
• M5: 2,328,790 km (0.048 R)
• M6: 3,065,560 km (0.072 R)
• M7: 4,033,159 km (0.098 R)
• M8: 4,573,506 km (0.062 R)
• M9: 5,194,188 km (0.114 R)
• M10: 5,730,646 km (0.109 R)
• M11: 7,113,678 km (0.085 R)
• M12: 10,373,116 km (0.069 R)
• M13: 14,845,793 km (0.116 R)
• M14: 15,721,988 km (0.109 R)
• M15: 16,419,114 km (0.046 R)
• M16: 18,100,744 km (0.049 R)
• M17: 19,894,572 km (0.12 R)
• M18: 21,889,609 km (0.112 R)
• M19: 26,371,412 km (0.084 R)
• M20: 27,355,766 km (0.075 R)
• M21: 28,262,628 km (0.057 R)
• M22: 30,994,884 km (0.092 R)
• M23: 34,360,985 km (0.099 R)
• M24: 36,372,777 km (0.079 R)
• M25: 39,345,138 km (0.116 R)
• M26: 40,890,484 km (0.117 R)
• M27: 49,376,423 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.4

Radius: 5.2

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.05 AU - 6.37 AU

Year: 10682 Days

Day: 19.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,532,447 km

• M1: 64,626 km (0.092 R)
• M2: 805,884 km (0.119 R)
• M3: 1,367,923 km (0.078 R)
• M4: 3,147,838 km (0.12 R)
• M5: 7,362,010 km (0.106 R)
• M6: 8,417,573 km (0.087 R)
• M7: 9,687,210 km (0.036 R)
• M8: 14,818,716 km (0.114 R)
• M9: 23,789,652 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874

Radius: 7.1

Gravity: 17.34 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 7.34 AU - 11.3 AU

Year: 19640 Days

Day: 17.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,532,447 km

• M1: 92,152 km (0.098 R)
• M2: 524,789 km (0.105 R)
• M3: 779,704 km (0.091 R)
• M4: 2,054,128 km (0.054 R)
• M5: 2,399,101 km (0.103 R)
• M6: 2,633,970 km (0.065 R)
• M7: 2,858,367 km (0.091 R)
• M8: 3,374,928 km (0.115 R)
• M9: 5,379,240 km (0.096 R)
• M10: 8,544,133 km (0.108 R)
• M11: 12,351,249 km (0.096 R)
• M12: 14,011,486 km (0.105 R)
• M13: 16,144,004 km (0.088 R)
• M14: 19,592,833 km (0.095 R)
• M15: 22,044,443 km (0.114 R)
• M16: 24,474,212 km (0.107 R)
• M17: 25,810,121 km (0.066 R)
• M18: 28,505,276 km (0.049 R)
• M19: 30,234,478 km (0.087 R)
• M20: 33,494,514 km (0.073 R)
• M21: 36,123,248 km (0.109 R)
• M22: 48,879,608 km (0.059 R)
• M23: 50,636,635 km (0.046 R)
• M24: 56,541,712 km (0.103 R)
• M25: 58,281,535 km (0.098 R)
• M26: 60,656,401 km (0.109 R)
• M27: 67,950,644 km (0.063 R)
• M28: 68,819,658 km (0.07 R)
• M29: 70,802,279 km (0.042 R)
• M30: 75,808,123 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 18,980 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit