🌌 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: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.61 AU - 0.67 AU

Year: 187 Days

Day: 14.1 Hours

Environment

Temp: 136 °C

Axial Tilt: 10.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.62 AU - 0.84 AU

Year: 228 Days

Day: 36.3 Hours

Environment

Temp: 178 °C

Axial Tilt: 19.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 94,507,462 km

• M1: 33,211 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.18 AU - 1.9 AU

Year: 698 Days

Day: 17.9 Hours

Environment

Temp: -29 °C

Axial Tilt: 154.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,507,462 km

• M1: 942,018 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.05 AU - 2.61 AU

Year: 1299 Days

Day: 23.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.58 AU - 3.26 AU

Year: 1822 Days

Day: 39.6 Hours

Environment

Temp: -101 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.67 AU - 3.25 AU

Year: 1860 Days

Day: 19.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.5

Radius: 14.7

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.48 AU - 11.72 AU

Year: 10864 Days

Day: 14 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 94,507,462 km

• M1: 182,958 km (0.104 R)
• M2: 700,567 km (0.102 R)
• M3: 1,500,467 km (0.076 R)
• M4: 1,961,078 km (0.051 R)
• M5: 3,473,064 km (0.119 R)
• M6: 4,948,698 km (0.098 R)
• M7: 5,407,514 km (0.114 R)
• M8: 7,537,489 km (0.069 R)
• M9: 9,012,823 km (0.113 R)
• M10: 11,287,309 km (0.074 R)
• M11: 17,639,534 km (0.041 R)
• M12: 18,353,864 km (0.106 R)
• M13: 18,939,240 km (0.069 R)
• M14: 20,457,210 km (0.075 R)
• M15: 21,729,091 km (0.085 R)
• M16: 23,137,405 km (0.12 R)
• M17: 25,408,002 km (0.114 R)
• M18: 27,064,648 km (0.101 R)
• M19: 28,792,205 km (0.056 R)
• M20: 30,694,491 km (0.119 R)
• M21: 33,000,243 km (0.106 R)
• M22: 36,903,252 km (0.115 R)
• M23: 40,116,913 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.8

Radius: 8

Gravity: 14.76 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 13.11 AU - 19.07 AU

Year: 23574 Days

Day: 17.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 94,507,462 km

• M1: 103,522 km (0.094 R)
• M2: 821,292 km (0.118 R)
• M3: 1,160,580 km (0.104 R)
• M4: 1,421,030 km (0.094 R)
• M5: 1,896,452 km (0.106 R)
• M6: 2,262,069 km (0.119 R)
• M7: 3,810,108 km (0.111 R)
• M8: 5,445,213 km (0.073 R)
• M9: 7,763,830 km (0.074 R)
• M10: 8,141,565 km (0.107 R)
• M11: 8,702,407 km (0.118 R)
• M12: 12,549,317 km (0.068 R)
• M13: 13,145,614 km (0.111 R)
• M14: 14,800,765 km (0.117 R)
• M15: 15,806,661 km (0.108 R)
• M16: 17,217,668 km (0.099 R)
• M17: 18,047,338 km (0.107 R)
• M18: 19,194,604 km (0.092 R)
• M19: 23,370,329 km (0.094 R)
• M20: 24,158,411 km (0.084 R)
• M21: 28,366,898 km (0.078 R)
• M22: 32,620,414 km (0.081 R)
• M23: 34,608,121 km (0.049 R)
• M24: 37,128,546 km (0.12 R)
• M25: 41,053,545 km (0.052 R)
• M26: 41,542,282 km (0.087 R)
• M27: 44,044,904 km (0.091 R)
• M28: 47,357,001 km (0.05 R)
• M29: 47,714,989 km (0.096 R)
• M30: 49,165,041 km (0.098 R)
• M31: 67,555,556 km (0.117 R)
• M32: 75,304,726 km (0.1 R)
• M33: 76,282,497 km (0.082 R)
• M34: 85,201,522 km (0.092 R)
• M35: 88,412,641 km (0.086 R)
• M36: 90,048,045 km (0.108 R)
• M37: 91,149,384 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 17,406 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit