🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.46 AU - 0.58 AU

Year: 246 Days

Day: 27.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.9

Radius: 12.8

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.79 AU - 0.91 AU

Year: 514 Days

Day: 10.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,056,062 km

• M1: 159,172 km (0.094 R)
• M2: 622,327 km (0.108 R)
• M3: 1,037,910 km (0.105 R)
• M4: 1,701,975 km (0.067 R)
• M5: 2,222,576 km (0.109 R)
• M6: 4,363,171 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.1

Radius: 13.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.83 AU - 0.97 AU

Year: 560 Days

Day: 10.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,056,062 km

• M1: 165,455 km (0.091 R)
• M2: 668,403 km (0.093 R)
• M3: 1,239,867 km (0.083 R)
• M4: 1,781,262 km (0.053 R)
• M5: 2,551,392 km (0.09 R)
• M6: 3,223,984 km (0.05 R)
• M7: 4,306,773 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.1

Radius: 11.6

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.4 AU - 1.9 AU

Year: 1390 Days

Day: 11.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,056,062 km

• M1: 144,362 km (0.079 R)
• M2: 572,960 km (0.113 R)
• M3: 974,331 km (0.047 R)
• M4: 1,665,623 km (0.114 R)
• M5: 2,410,171 km (0.094 R)
• M6: 3,409,186 km (0.079 R)
• M7: 4,466,693 km (0.069 R)
• M8: 7,245,174 km (0.081 R)
• M9: 9,213,733 km (0.115 R)
• M10: 9,658,637 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.8

Radius: 9.9

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.62 AU - 1.92 AU

Year: 1545 Days

Day: 8.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,056,062 km

• M1: 123,119 km (0.075 R)
• M2: 458,966 km (0.11 R)
• M3: 974,630 km (0.061 R)
• M4: 1,641,089 km (0.118 R)
• M5: 2,179,791 km (0.089 R)
• M6: 2,619,758 km (0.083 R)
• M7: 3,193,017 km (0.105 R)
• M8: 4,952,886 km (0.048 R)
• M9: 7,107,395 km (0.098 R)

Asteroid Belt

Center: 2.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.7

Radius: 9.9

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.09 AU - 3.89 AU

Year: 4277 Days

Day: 12 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,056,062 km

• M1: 123,119 km (0.081 R)
• M2: 565,330 km (0.093 R)
• M3: 939,325 km (0.119 R)
• M4: 1,263,055 km (0.087 R)
• M5: 1,848,581 km (0.079 R)
• M6: 2,414,958 km (0.087 R)
• M7: 2,877,665 km (0.07 R)
• M8: 3,243,581 km (0.098 R)
• M9: 3,579,129 km (0.09 R)
• M10: 5,620,392 km (0.095 R)
• M11: 7,131,480 km (0.028 R)
• M12: 7,565,164 km (0.091 R)
• M13: 7,910,735 km (0.09 R)
• M14: 9,011,177 km (0.11 R)
• M15: 9,399,833 km (0.111 R)
• M16: 9,840,249 km (0.06 R)
• M17: 10,252,540 km (0.095 R)
• M18: 13,671,301 km (0.093 R)
• M19: 14,237,080 km (0.062 R)
• M20: 14,605,240 km (0.081 R)
• M21: 14,925,978 km (0.108 R)
• M22: 15,526,015 km (0.112 R)
• M23: 16,658,022 km (0.085 R)
• M24: 17,125,964 km (0.107 R)
• M25: 20,517,498 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.9

Radius: 10.6

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.55 AU - 4.17 AU

Year: 4975 Days

Day: 6.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,056,062 km

• M1: 134,788 km (0.094 R)
• M2: 514,018 km (0.073 R)
• M3: 854,353 km (0.035 R)
• M4: 1,252,882 km (0.073 R)
• M5: 1,789,041 km (0.076 R)
• M6: 2,198,191 km (0.104 R)
• M7: 2,653,118 km (0.116 R)
• M8: 3,170,128 km (0.049 R)
• M9: 3,904,654 km (0.117 R)
• M10: 4,289,270 km (0.06 R)
• M11: 5,403,924 km (0.069 R)
• M12: 6,058,714 km (0.103 R)
• M13: 6,513,641 km (0.09 R)
• M14: 7,122,504 km (0.115 R)
• M15: 8,907,356 km (0.084 R)
• M16: 10,709,263 km (0.066 R)
• M17: 11,105,847 km (0.086 R)
• M18: 13,953,891 km (0.114 R)
• M19: 17,497,565 km (0.099 R)
• M20: 18,737,582 km (0.106 R)
• M21: 19,444,133 km (0.039 R)
• M22: 22,520,463 km (0.106 R)
• M23: 23,540,123 km (0.058 R)
• M24: 24,972,971 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719.7

Radius: 5.6

Gravity: 22.95 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 6.49 AU - 7.15 AU

Year: 11684 Days

Day: 16.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,056,062 km

• M1: 69,713 km (0.082 R)
• M2: 290,818 km (0.114 R)
• M3: 521,199 km (0.099 R)
• M4: 717,920 km (0.117 R)
• M5: 1,455,587 km (0.091 R)
• M6: 1,757,027 km (0.085 R)
• M7: 2,009,698 km (0.104 R)
• M8: 2,344,797 km (0.109 R)
• M9: 2,588,492 km (0.061 R)
• M10: 4,361,975 km (0.081 R)
• M11: 5,358,745 km (0.109 R)
• M12: 6,266,804 km (0.079 R)
• M13: 8,617,885 km (0.046 R)
• M14: 11,101,060 km (0.107 R)
• M15: 11,498,990 km (0.1 R)
• M16: 15,661,251 km (0.034 R)
• M17: 16,599,380 km (0.064 R)
• M18: 16,969,934 km (0.11 R)
• M19: 19,148,079 km (0.115 R)
• M20: 20,727,982 km (0.063 R)
• M21: 26,284,795 km (0.106 R)
• M22: 31,274,332 km (0.098 R)
• M23: 47,386,921 km (0.099 R)
• M24: 49,341,566 km (0.114 R)
• M25: 49,800,234 km (0.112 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 14,589 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit