🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.75 AU - 1.17 AU

Year: 337 Days

Day: 41 Hours

Environment

Temp: 148 °C

Axial Tilt: 2.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.63 AU - 2.39 AU

Year: 1021 Days

Day: 20.6 Hours

Environment

Temp: -63 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Ice Giant

Semi-Major Axis: 16.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.8

Radius: 6

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 14.97 AU - 17.69 AU

Year: 23635 Days

Day: 15.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 103,110,132 km

• M1: 77,492 km (0.026 R)
• M2: 339,438 km (0.073 R)
• M3: 1,700,928 km (0.067 R)
• M4: 2,349,734 km (0.11 R)
• M5: 3,054,489 km (0.113 R)
• M6: 3,276,044 km (0.106 R)
• M7: 6,801,617 km (0.101 R)
• M8: 8,213,671 km (0.043 R)
• M9: 12,829,513 km (0.106 R)
• M10: 13,343,083 km (0.081 R)
• M11: 18,035,669 km (0.047 R)
• M12: 20,792,309 km (0.09 R)
• M13: 22,592,869 km (0.113 R)
• M14: 28,397,865 km (0.032 R)
• M15: 29,049,812 km (0.102 R)
• M16: 35,123,635 km (0.117 R)
• M17: 42,696,130 km (0.099 R)
• M18: 44,709,418 km (0.087 R)
• M19: 48,769,355 km (0.061 R)
• M20: 54,555,501 km (0.095 R)
• M21: 55,057,252 km (0.027 R)
• M22: 56,581,355 km (0.081 R)

Planet 4 - Ice Giant

Semi-Major Axis: 18.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791.1

Radius: 7.1

Gravity: 15.69 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 16.36 AU - 21.38 AU

Year: 29358 Days

Day: 15.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 103,110,132 km

• M1: 88,412 km (0.099 R)
• M2: 309,518 km (0.115 R)
• M3: 576,849 km (0.045 R)
• M4: 1,002,007 km (0.046 R)
• M5: 2,473,152 km (0.116 R)
• M6: 2,842,210 km (0.053 R)
• M7: 3,892,537 km (0.09 R)
• M8: 6,105,987 km (0.113 R)
• M9: 6,437,496 km (0.101 R)
• M10: 7,505,026 km (0.116 R)
• M11: 8,222,198 km (0.113 R)
• M12: 8,451,831 km (0.1 R)
• M13: 9,228,094 km (0.11 R)
• M14: 10,247,454 km (0.09 R)
• M15: 14,490,648 km (0.107 R)
• M16: 14,741,823 km (0.094 R)
• M17: 19,776,091 km (0.049 R)
• M18: 21,462,657 km (0.114 R)
• M19: 23,935,360 km (0.119 R)
• M20: 25,240,153 km (0.087 R)
• M21: 30,384,973 km (0.089 R)
• M22: 32,768,366 km (0.105 R)
• M23: 35,881,049 km (0.103 R)
• M24: 38,701,418 km (0.089 R)
• M25: 40,495,844 km (0.059 R)
• M26: 42,174,632 km (0.088 R)
• M27: 46,210,932 km (0.073 R)
• M28: 50,689,443 km (0.099 R)
• M29: 63,580,142 km (0.085 R)
• M30: 68,162,624 km (0.041 R)
• M31: 76,703,316 km (0.074 R)
• M32: 78,750,862 km (0.072 R)
• M33: 80,572,067 km (0.089 R)
• M34: 80,834,461 km (0.082 R)
• M35: 86,203,978 km (0.112 R)
• M36: 88,695,830 km (0.113 R)
• M37: 91,235,403 km (0.089 R)
• M38: 93,822,997 km (0.086 R)
• M39: 100,353,543 km (0.065 R)

Kuiper Belt

Range: 30.6 - 53.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 307 - 15,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit