🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.52 AU - 0.64 AU

Year: 285 Days

Day: 14.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,898,976 km

• M1: 57,296 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.2

Radius: 10.4

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.71 AU - 0.79 AU

Year: 419 Days

Day: 8.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,898,976 km

• M1: 129,402 km (0.073 R)
• M2: 559,197 km (0.109 R)
• M3: 917,933 km (0.107 R)
• M4: 1,363,884 km (0.077 R)
• M5: 1,769,743 km (0.093 R)
• M6: 2,446,075 km (0.076 R)
• M7: 2,909,529 km (0.082 R)
• M8: 3,275,745 km (0.046 R)
• M9: 3,649,290 km (0.12 R)
• M10: 4,256,807 km (0.119 R)
• M11: 4,745,095 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735

Radius: 12.8

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.12 AU - 2.32 AU

Year: 2136 Days

Day: 13 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,898,976 km

• M1: 159,322 km (0.049 R)
• M2: 717,920 km (0.107 R)
• M3: 1,135,298 km (0.111 R)
• M4: 1,806,544 km (0.051 R)
• M5: 2,518,480 km (0.111 R)
• M6: 3,002,728 km (0.092 R)
• M7: 3,745,631 km (0.065 R)
• M8: 4,756,464 km (0.11 R)
• M9: 6,351,327 km (0.085 R)
• M10: 9,324,286 km (0.12 R)
• M11: 13,909,909 km (0.087 R)
• M12: 14,406,425 km (0.038 R)
• M13: 15,102,354 km (0.094 R)
• M14: 16,212,968 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.6

Radius: 11.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.27 AU - 3.21 AU

Year: 2928 Days

Day: 6.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,898,976 km

• M1: 143,315 km (0.106 R)
• M2: 580,589 km (0.064 R)
• M3: 1,045,689 km (0.078 R)
• M4: 1,433,896 km (0.091 R)
• M5: 1,801,607 km (0.094 R)
• M6: 2,184,727 km (0.11 R)
• M7: 2,734,200 km (0.114 R)
• M8: 3,783,330 km (0.062 R)
• M9: 4,206,543 km (0.075 R)
• M10: 4,723,104 km (0.093 R)
• M11: 5,083,336 km (0.086 R)
• M12: 5,670,208 km (0.11 R)
• M13: 6,556,875 km (0.102 R)
• M14: 7,420,653 km (0.09 R)
• M15: 9,145,067 km (0.05 R)
• M16: 10,222,920 km (0.097 R)
• M17: 10,865,293 km (0.093 R)
• M18: 13,244,498 km (0.064 R)
• M19: 13,965,111 km (0.078 R)
• M20: 15,346,348 km (0.113 R)
• M21: 15,717,201 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.7

Radius: 8.9

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.55 AU - 3.05 AU

Year: 3025 Days

Day: 14.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,898,976 km

• M1: 110,852 km (0.073 R)
• M2: 723,455 km (0.108 R)
• M3: 1,039,406 km (0.059 R)
• M4: 1,457,083 km (0.119 R)
• M5: 2,737,043 km (0.113 R)
• M6: 3,402,753 km (0.072 R)
• M7: 3,931,731 km (0.106 R)
• M8: 4,973,680 km (0.111 R)
• M9: 5,764,305 km (0.115 R)
• M10: 6,904,241 km (0.099 R)
• M11: 8,188,090 km (0.115 R)
• M12: 9,379,039 km (0.084 R)
• M13: 10,615,465 km (0.104 R)
• M14: 11,743,732 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.6

Radius: 8.1

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.8 AU - 5.34 AU

Year: 6308 Days

Day: 9.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,898,976 km

• M1: 102,475 km (0.07 R)
• M2: 473,028 km (0.046 R)
• M3: 911,051 km (0.102 R)
• M4: 1,787,246 km (0.099 R)
• M5: 2,153,910 km (0.097 R)
• M6: 3,325,710 km (0.1 R)
• M7: 5,594,661 km (0.114 R)
• M8: 6,251,994 km (0.041 R)
• M9: 6,959,891 km (0.096 R)
• M10: 8,062,278 km (0.086 R)
• M11: 11,127,987 km (0.106 R)
• M12: 12,892,644 km (0.066 R)
• M13: 13,212,933 km (0.058 R)
• M14: 15,605,302 km (0.109 R)
• M15: 16,400,863 km (0.096 R)
• M16: 20,067,657 km (0.117 R)
• M17: 22,434,744 km (0.068 R)
• M18: 23,368,384 km (0.116 R)
• M19: 24,408,837 km (0.098 R)
• M20: 25,731,432 km (0.119 R)
• M21: 26,324,887 km (0.109 R)
• M22: 28,699,604 km (0.109 R)
• M23: 30,737,127 km (0.059 R)
• M24: 32,869,345 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 3.7

Gravity: 60.08 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.86 AU - 7.3 AU

Year: 9680 Days

Day: 16.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,898,976 km

• M1: 46,076 km (0.076 R)
• M2: 210,783 km (0.098 R)
• M3: 660,026 km (0.103 R)
• M4: 1,026,391 km (0.108 R)
• M5: 1,350,869 km (0.112 R)
• M6: 1,487,152 km (0.074 R)
• M7: 1,708,856 km (0.087 R)
• M8: 3,281,728 km (0.115 R)
• M9: 3,683,698 km (0.109 R)
• M10: 4,117,532 km (0.028 R)
• M11: 5,658,240 km (0.097 R)
• M12: 6,653,066 km (0.093 R)
• M13: 6,968,867 km (0.056 R)
• M14: 9,564,390 km (0.083 R)
• M15: 16,550,910 km (0.111 R)
• M16: 18,099,547 km (0.089 R)
• M17: 18,251,987 km (0.066 R)
• M18: 25,451,983 km (0.082 R)
• M19: 26,028,534 km (0.053 R)
• M20: 27,008,998 km (0.04 R)
• M21: 27,407,975 km (0.039 R)
• M22: 30,634,054 km (0.098 R)
• M23: 32,394,073 km (0.097 R)
• M24: 37,951,933 km (0.073 R)
• M25: 43,155,545 km (0.1 R)
• M26: 45,363,460 km (0.113 R)
• M27: 46,352,751 km (0.084 R)
• M28: 46,495,168 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.4

Radius: 7.1

Gravity: 10.3 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.24 AU - 7.3 AU

Year: 10137 Days

Day: 16.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,898,976 km

• M1: 88,263 km (0.062 R)
• M2: 344,973 km (0.111 R)
• M3: 809,624 km (0.098 R)
• M4: 1,150,856 km (0.111 R)
• M5: 2,600,310 km (0.069 R)
• M6: 2,863,453 km (0.094 R)
• M7: 3,166,837 km (0.073 R)
• M8: 3,419,957 km (0.117 R)
• M9: 4,895,890 km (0.109 R)
• M10: 6,753,745 km (0.032 R)
• M11: 9,407,612 km (0.092 R)
• M12: 18,584,843 km (0.078 R)
• M13: 22,965,966 km (0.12 R)
• M14: 24,986,136 km (0.034 R)
• M15: 28,282,973 km (0.103 R)
• M16: 31,016,127 km (0.1 R)
• M17: 36,069,842 km (0.033 R)
• M18: 39,155,747 km (0.053 R)
• M19: 40,762,727 km (0.113 R)
• M20: 43,320,103 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370.6

Radius: 7.8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.83 AU - 7.87 AU

Year: 14201 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,898,976 km

• M1: 150,795 km (0.117 R)
• M2: 1,023,848 km (0.042 R)
• M3: 1,440,029 km (0.119 R)
• M4: 1,932,057 km (0.082 R)
• M5: 2,226,764 km (0.08 R)
• M6: 3,320,325 km (0.113 R)
• M7: 4,150,892 km (0.062 R)
• M8: 5,715,536 km (0.074 R)
• M9: 7,264,323 km (0.109 R)
• M10: 9,265,643 km (0.063 R)
• M11: 11,330,692 km (0.095 R)
• M12: 15,650,929 km (0.114 R)
• M13: 15,996,052 km (0.102 R)
• M14: 20,625,507 km (0.053 R)
• M15: 22,145,571 km (0.109 R)
• M16: 22,406,021 km (0.076 R)
• M17: 25,597,243 km (0.102 R)
• M18: 37,824,625 km (0.055 R)
• M19: 38,446,503 km (0.083 R)
• M20: 43,533,280 km (0.064 R)
• M21: 45,045,265 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 476.3

Radius: 4.7

Gravity: 21.56 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 10.06 AU - 10.98 AU

Year: 22031 Days

Day: 20.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,898,976 km

• M1: 61,485 km (0.091 R)
• M2: 331,210 km (0.08 R)
• M3: 574,905 km (0.113 R)
• M4: 1,335,759 km (0.07 R)
• M5: 1,618,649 km (0.033 R)
• M6: 1,921,585 km (0.115 R)
• M7: 3,112,234 km (0.087 R)
• M8: 4,287,325 km (0.055 R)
• M9: 5,457,330 km (0.081 R)
• M10: 9,814,219 km (0.034 R)
• M11: 15,653,772 km (0.12 R)
• M12: 19,246,364 km (0.083 R)
• M13: 23,048,394 km (0.068 R)
• M14: 25,018,000 km (0.119 R)
• M15: 26,318,005 km (0.078 R)
• M16: 30,124,374 km (0.114 R)
• M17: 35,210,252 km (0.029 R)
• M18: 41,582,972 km (0.091 R)
• M19: 50,363,170 km (0.062 R)
• M20: 53,661,803 km (0.09 R)
• M21: 55,999,869 km (0.065 R)
• M22: 63,817,255 km (0.07 R)
• M23: 71,040,289 km (0.109 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 13,186 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit