🌌 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: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.52 AU - 0.64 AU

Year: 285 Days

Day: 12.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.55 AU - 0.65 AU

Year: 300 Days

Day: 38.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.8

Radius: 8.7

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.6 AU - 0.86 AU

Year: 403 Days

Day: 8 Hours

Environment

Temp: -146 °C

Axial Tilt: 83.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,619,192 km

• M1: 108,159 km (0.112 R)
• M2: 381,923 km (0.114 R)
• M3: 950,096 km (0.113 R)
• M4: 1,303,446 km (0.099 R)
• M5: 1,599,949 km (0.088 R)
• M6: 1,964,968 km (0.059 R)
• M7: 2,349,883 km (0.104 R)
• M8: 2,630,978 km (0.03 R)
• M9: 3,006,319 km (0.045 R)
• M10: 3,394,675 km (0.091 R)
• M11: 4,129,200 km (0.068 R)
• M12: 4,778,605 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547

Radius: 12.6

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.4 AU - 1.76 AU

Year: 1282 Days

Day: 6.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,619,192 km

• M1: 157,527 km (0.103 R)
• M2: 721,511 km (0.103 R)
• M3: 1,228,049 km (0.092 R)
• M4: 2,063,104 km (0.095 R)
• M5: 3,039,081 km (0.106 R)
• M6: 3,820,131 km (0.107 R)
• M7: 4,319,040 km (0.114 R)
• M8: 5,110,263 km (0.048 R)
• M9: 6,649,027 km (0.077 R)
• M10: 7,399,260 km (0.093 R)
• M11: 8,755,664 km (0.095 R)
• M12: 9,900,088 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553

Radius: 9.4

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.98 AU - 3.38 AU

Year: 3661 Days

Day: 11.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,619,192 km

• M1: 118,482 km (0.1 R)
• M2: 476,320 km (0.062 R)
• M3: 1,305,840 km (0.046 R)
• M4: 2,173,956 km (0.117 R)
• M5: 2,583,406 km (0.118 R)
• M6: 3,939,361 km (0.115 R)
• M7: 6,444,826 km (0.11 R)
• M8: 7,013,447 km (0.112 R)
• M9: 8,012,462 km (0.095 R)
• M10: 9,363,331 km (0.091 R)
• M11: 11,152,372 km (0.12 R)
• M12: 12,510,272 km (0.083 R)
• M13: 20,035,344 km (0.091 R)
• M14: 20,794,104 km (0.114 R)
• M15: 22,368,921 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.5

Radius: 14.9

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.08 AU - 4.02 AU

Year: 4319 Days

Day: 14.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,619,192 km

• M1: 185,352 km (0.108 R)
• M2: 695,929 km (0.117 R)
• M3: 1,320,201 km (0.068 R)
• M4: 1,812,827 km (0.11 R)
• M5: 2,416,305 km (0.098 R)
• M6: 3,332,143 km (0.093 R)
• M7: 3,871,593 km (0.117 R)
• M8: 5,079,596 km (0.044 R)
• M9: 5,586,284 km (0.119 R)
• M10: 8,335,743 km (0.07 R)
• M11: 9,301,397 km (0.088 R)
• M12: 9,908,017 km (0.068 R)
• M13: 11,541,177 km (0.114 R)
• M14: 12,422,308 km (0.093 R)
• M15: 14,368,576 km (0.114 R)
• M16: 18,561,356 km (0.064 R)
• M17: 19,039,171 km (0.063 R)
• M18: 20,968,834 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.9

Radius: 14.6

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 3.82 AU - 5.56 AU

Year: 6558 Days

Day: 11.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,619,192 km

• M1: 182,360 km (0.107 R)
• M2: 898,485 km (0.12 R)
• M3: 1,863,241 km (0.078 R)
• M4: 3,016,342 km (0.077 R)
• M5: 3,528,116 km (0.025 R)
• M6: 4,603,276 km (0.073 R)
• M7: 5,177,134 km (0.12 R)
• M8: 5,798,563 km (0.042 R)
• M9: 10,677,548 km (0.117 R)
• M10: 11,499,738 km (0.068 R)
• M11: 12,363,965 km (0.077 R)
• M12: 17,534,965 km (0.03 R)
• M13: 20,978,708 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 247.2

Radius: 5.3

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.92 AU - 9.42 AU

Year: 16483 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 165 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 47,619,192 km

• M1: 67,020 km (0.069 R)
• M2: 366,964 km (0.068 R)
• M3: 723,306 km (0.091 R)
• M4: 1,178,382 km (0.107 R)
• M5: 1,524,103 km (0.027 R)
• M6: 2,104,692 km (0.096 R)
• M7: 2,416,454 km (0.109 R)
• M8: 2,695,903 km (0.101 R)
• M9: 4,200,110 km (0.113 R)
• M10: 5,098,146 km (0.116 R)
• M11: 6,752,249 km (0.064 R)
• M12: 7,553,795 km (0.102 R)
• M13: 10,184,174 km (0.103 R)
• M14: 10,388,824 km (0.091 R)
• M15: 12,127,151 km (0.07 R)
• M16: 15,216,946 km (0.067 R)
• M17: 16,587,262 km (0.038 R)
• M18: 17,302,340 km (0.059 R)
• M19: 17,594,206 km (0.08 R)
• M20: 20,207,830 km (0.074 R)
• M21: 21,355,395 km (0.078 R)
• M22: 22,459,278 km (0.066 R)
• M23: 25,150,992 km (0.092 R)
• M24: 25,525,286 km (0.117 R)
• M25: 25,713,929 km (0.095 R)
• M26: 26,381,285 km (0.101 R)
• M27: 32,472,163 km (0.116 R)
• M28: 35,196,489 km (0.109 R)
• M29: 37,580,182 km (0.093 R)
• M30: 39,815,623 km (0.044 R)
• M31: 41,744,837 km (0.098 R)
• M32: 47,050,774 km (0.117 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: 400 - 11,059 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit