🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.61 AU - 0.67 AU

Year: 191 Days

Day: 43.3 Hours

Environment

Temp: 150 °C

Axial Tilt: 20.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.31 AU - 1.39 AU

Year: 585 Days

Day: 41.5 Hours

Environment

Temp: -38 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 102,215,727 km

• M1: 27,376 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.69 AU - 2.77 AU

Year: 1241 Days

Day: 40.5 Hours

Environment

Temp: -84 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 102,215,727 km

• M1: 352,453 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.3

Radius: 12.1

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 10.78 AU - 11.02 AU

Year: 13415 Days

Day: 7.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 102,215,727 km

• M1: 150,495 km (0.069 R)
• M2: 668,403 km (0.119 R)
• M3: 1,296,116 km (0.054 R)
• M4: 4,192,181 km (0.104 R)
• M5: 6,931,917 km (0.102 R)
• M6: 9,315,908 km (0.089 R)
• M7: 12,466,589 km (0.07 R)
• M8: 21,005,635 km (0.073 R)
• M9: 23,118,406 km (0.081 R)
• M10: 29,629,504 km (0.107 R)
• M11: 30,789,187 km (0.12 R)
• M12: 31,978,938 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.8

Radius: 10.6

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 10.18 AU - 12.26 AU

Year: 14010 Days

Day: 5.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 102,215,727 km

• M1: 134,339 km (0.103 R)
• M2: 563,685 km (0.104 R)
• M3: 1,675,795 km (0.095 R)
• M4: 2,685,282 km (0.112 R)
• M5: 3,152,326 km (0.048 R)
• M6: 3,500,590 km (0.061 R)
• M7: 4,036,300 km (0.108 R)
• M8: 4,703,507 km (0.083 R)
• M9: 6,008,299 km (0.074 R)
• M10: 6,612,375 km (0.117 R)
• M11: 7,831,149 km (0.079 R)
• M12: 12,283,032 km (0.107 R)
• M13: 17,671,099 km (0.062 R)
• M14: 21,345,522 km (0.096 R)
• M15: 22,077,803 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.4

Radius: 7.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 11.83 AU - 15.93 AU

Year: 19277 Days

Day: 15.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 102,215,727 km

• M1: 93,349 km (0.086 R)
• M2: 331,808 km (0.08 R)
• M3: 672,442 km (0.115 R)
• M4: 2,632,623 km (0.116 R)
• M5: 3,092,786 km (0.047 R)
• M6: 4,151,341 km (0.042 R)
• M7: 4,584,277 km (0.102 R)
• M8: 5,407,215 km (0.051 R)
• M9: 6,443,031 km (0.038 R)
• M10: 6,805,806 km (0.087 R)
• M11: 8,394,834 km (0.082 R)
• M12: 10,585,695 km (0.111 R)
• M13: 14,726,414 km (0.102 R)
• M14: 17,354,550 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478.9

Radius: 8

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 14.27 AU - 17.19 AU

Year: 23257 Days

Day: 16.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 102,215,727 km

• M1: 99,483 km (0.04 R)
• M2: 356,193 km (0.099 R)
• M3: 904,469 km (0.062 R)
• M4: 1,250,788 km (0.08 R)
• M5: 2,386,385 km (0.038 R)
• M6: 4,908,306 km (0.063 R)
• M7: 5,239,366 km (0.096 R)
• M8: 5,624,730 km (0.099 R)
• M9: 6,195,895 km (0.065 R)
• M10: 6,452,306 km (0.115 R)
• M11: 6,850,086 km (0.081 R)
• M12: 7,842,220 km (0.102 R)
• M13: 10,585,545 km (0.119 R)
• M14: 14,351,373 km (0.099 R)
• M15: 15,888,042 km (0.109 R)
• M16: 16,288,815 km (0.065 R)
• M17: 16,943,904 km (0.064 R)
• M18: 18,925,327 km (0.069 R)
• M19: 21,056,499 km (0.073 R)
• M20: 23,137,405 km (0.07 R)
• M21: 39,439,833 km (0.108 R)
• M22: 43,050,527 km (0.07 R)
• M23: 45,415,819 km (0.082 R)
• M24: 46,548,724 km (0.071 R)
• M25: 47,039,854 km (0.083 R)
• M26: 49,378,068 km (0.094 R)
• M27: 53,565,014 km (0.075 R)
• M28: 57,230,012 km (0.059 R)
• M29: 59,892,704 km (0.12 R)
• M30: 62,836,042 km (0.098 R)
• M31: 64,444,519 km (0.119 R)
• M32: 68,797,368 km (0.04 R)
• M33: 70,937,216 km (0.059 R)
• M34: 72,242,308 km (0.105 R)
• M35: 73,121,195 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.2

Radius: 5.9

Gravity: 26.52 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 14.29 AU - 20.31 AU

Year: 26824 Days

Day: 24.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 102,215,727 km

• M1: 75,098 km (0.052 R)
• M2: 2,151,666 km (0.065 R)
• M3: 2,363,946 km (0.11 R)
• M4: 2,914,765 km (0.102 R)
• M5: 9,074,308 km (0.11 R)
• M6: 9,505,748 km (0.082 R)
• M7: 10,813,981 km (0.109 R)
• M8: 11,228,816 km (0.083 R)
• M9: 12,312,354 km (0.086 R)
• M10: 12,841,182 km (0.109 R)
• M11: 14,025,100 km (0.063 R)
• M12: 14,352,719 km (0.118 R)
• M13: 15,280,076 km (0.107 R)
• M14: 18,495,982 km (0.048 R)
• M15: 27,481,877 km (0.102 R)
• M16: 28,514,401 km (0.117 R)
• M17: 32,048,651 km (0.044 R)
• M18: 33,774,113 km (0.082 R)
• M19: 48,545,257 km (0.039 R)
• M20: 62,359,872 km (0.119 R)
• M21: 77,298,865 km (0.111 R)
• M22: 77,808,695 km (0.082 R)
• M23: 81,967,516 km (0.114 R)
• M24: 82,497,541 km (0.095 R)
• M25: 89,597,755 km (0.082 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 11,651 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit