🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.38 AU - 0.64 AU

Year: 135 Days

Day: 26.4 Hours

Environment

Temp: 192 °C

Axial Tilt: 36.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,940,236 km

• M1: 39,793 km (0.078 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.57 AU - 0.69 AU

Year: 185 Days

Day: 20.2 Hours

Environment

Temp: 118 °C

Axial Tilt: 46.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.96 AU - 1.48 AU

Year: 500 Days

Day: 37.9 Hours

Environment

Temp: -4 °C

Axial Tilt: 13.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 77,940,236 km

• M1: 441,613 km (0.054 R)
• M2: 940,522 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 13.9

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.29 AU - 6.01 AU

Year: 4981 Days

Day: 6.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,940,236 km

• M1: 175,628 km (0.079 R)
• M2: 672,293 km (0.093 R)
• M3: 1,162,375 km (0.099 R)
• M4: 1,778,719 km (0.104 R)
• M5: 2,280,320 km (0.108 R)
• M6: 3,819,084 km (0.086 R)
• M7: 4,437,522 km (0.117 R)
• M8: 5,346,628 km (0.103 R)
• M9: 7,356,326 km (0.1 R)
• M10: 10,536,028 km (0.098 R)
• M11: 11,855,482 km (0.095 R)
• M12: 13,548,780 km (0.079 R)
• M13: 16,598,333 km (0.067 R)
• M14: 20,644,057 km (0.057 R)
• M15: 22,477,230 km (0.095 R)
• M16: 27,144,982 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.8

Radius: 10.7

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 9.1 AU - 14.72 AU

Year: 15243 Days

Day: 14.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,940,236 km

• M1: 133,292 km (0.078 R)
• M2: 622,327 km (0.111 R)
• M3: 2,007,603 km (0.104 R)
• M4: 3,503,433 km (0.057 R)
• M5: 4,296,750 km (0.047 R)
• M6: 5,045,637 km (0.043 R)
• M7: 6,092,822 km (0.027 R)
• M8: 8,658,575 km (0.031 R)
• M9: 9,605,081 km (0.092 R)
• M10: 10,002,413 km (0.101 R)
• M11: 10,990,357 km (0.058 R)
• M12: 11,758,991 km (0.118 R)
• M13: 18,027,291 km (0.068 R)
• M14: 21,867,020 km (0.103 R)
• M15: 28,701,548 km (0.103 R)
• M16: 30,051,819 km (0.113 R)
• M17: 30,903,629 km (0.11 R)
• M18: 37,079,029 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.5

Radius: 8

Gravity: 12.85 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 10.07 AU - 14.01 AU

Year: 15493 Days

Day: 5.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,940,236 km

• M1: 99,483 km (0.107 R)
• M2: 581,637 km (0.102 R)
• M3: 1,396,047 km (0.069 R)
• M4: 1,777,971 km (0.051 R)
• M5: 3,411,729 km (0.11 R)
• M6: 5,629,218 km (0.106 R)
• M7: 5,981,372 km (0.11 R)
• M8: 7,727,029 km (0.086 R)
• M9: 8,211,726 km (0.048 R)
• M10: 9,899,789 km (0.077 R)
• M11: 10,530,045 km (0.104 R)
• M12: 17,131,499 km (0.108 R)
• M13: 22,378,794 km (0.088 R)
• M14: 24,788,966 km (0.051 R)
• M15: 28,950,629 km (0.088 R)
• M16: 30,954,642 km (0.099 R)
• M17: 35,368,228 km (0.115 R)
• M18: 37,109,098 km (0.091 R)
• M19: 39,329,131 km (0.061 R)
• M20: 41,783,284 km (0.086 R)
• M21: 45,575,141 km (0.116 R)
• M22: 46,835,353 km (0.096 R)
• M23: 58,131,638 km (0.068 R)
• M24: 66,995,910 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.8

Radius: 6.4

Gravity: 11.47 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 14.14 AU - 19.02 AU

Year: 25037 Days

Day: 18.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 130.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,940,236 km

• M1: 79,885 km (0.063 R)
• M2: 556,803 km (0.078 R)
• M3: 1,116,150 km (0.101 R)
• M4: 1,939,536 km (0.112 R)
• M5: 2,630,978 km (0.112 R)
• M6: 3,773,157 km (0.072 R)
• M7: 7,127,441 km (0.089 R)
• M8: 8,476,814 km (0.076 R)
• M9: 9,296,012 km (0.111 R)
• M10: 12,408,096 km (0.1 R)
• M11: 15,587,649 km (0.112 R)
• M12: 17,321,489 km (0.031 R)
• M13: 21,462,059 km (0.089 R)
• M14: 24,238,894 km (0.074 R)
• M15: 32,015,889 km (0.068 R)
• M16: 40,545,212 km (0.113 R)
• M17: 57,409,529 km (0.084 R)
• M18: 66,835,392 km (0.085 R)
• M19: 70,921,359 km (0.103 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: 346 - 17,896 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit