🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.63 AU - 0.91 AU

Year: 256 Days

Day: 30.7 Hours

Environment

Temp: 138 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.81 AU - 1.25 AU

Year: 396 Days

Day: 14.3 Hours

Environment

Temp: 23 °C

Axial Tilt: 3.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,010,228 km

• M1: 109,655 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.85 AU - 4.69 AU

Year: 2772 Days

Day: 36 Hours

Environment

Temp: -125 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 9

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.37 AU - 5.23 AU

Year: 3377 Days

Day: 5.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,010,228 km

• M1: 112,498 km (0.119 R)
• M2: 466,596 km (0.058 R)
• M3: 947,703 km (0.092 R)
• M4: 1,761,066 km (0.09 R)
• M5: 2,274,785 km (0.12 R)
• M6: 3,298,184 km (0.081 R)
• M7: 3,712,570 km (0.068 R)
• M8: 4,001,145 km (0.054 R)
• M9: 4,981,908 km (0.081 R)
• M10: 5,677,688 km (0.116 R)
• M11: 6,574,378 km (0.039 R)
• M12: 7,441,447 km (0.082 R)
• M13: 10,576,569 km (0.074 R)
• M14: 11,279,081 km (0.088 R)
• M15: 11,642,005 km (0.084 R)
• M16: 12,647,602 km (0.07 R)
• M17: 13,484,154 km (0.09 R)
• M18: 14,077,309 km (0.088 R)
• M19: 14,879,154 km (0.113 R)
• M20: 15,512,701 km (0.107 R)
• M21: 15,810,999 km (0.077 R)
• M22: 16,316,939 km (0.062 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500

Radius: 5.2

Gravity: 18.49 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 12.29 AU - 17.72 AU

Year: 22003 Days

Day: 23.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,010,228 km

• M1: 68,665 km (0.09 R)
• M2: 799,750 km (0.099 R)
• M3: 1,111,363 km (0.064 R)
• M4: 1,565,243 km (0.082 R)
• M5: 1,771,089 km (0.062 R)
• M6: 2,638,757 km (0.119 R)
• M7: 2,807,054 km (0.109 R)
• M8: 7,493,956 km (0.111 R)
• M9: 11,423,742 km (0.06 R)
• M10: 11,614,928 km (0.108 R)
• M11: 13,291,322 km (0.04 R)
• M12: 13,932,349 km (0.07 R)
• M13: 18,830,632 km (0.107 R)
• M14: 40,875,973 km (0.067 R)
• M15: 41,774,009 km (0.118 R)
• M16: 45,978,307 km (0.112 R)
• M17: 46,949,347 km (0.082 R)
• M18: 51,836,560 km (0.101 R)
• M19: 66,024,272 km (0.09 R)
• M20: 70,415,568 km (0.052 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 14,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit