🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.59 AU - 0.71 AU

Year: 191 Days

Day: 12.6 Hours

Environment

Temp: 204 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 73,535,822 km

• M1: 43,683 km (0.107 R)
• M2: 73,303 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.16 AU - 3.52 AU

Year: 1748 Days

Day: 41.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,535,822 km

• M1: 41,289 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.15 AU - 5.23 AU

Year: 3133 Days

Day: 15.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.44 AU - 5.32 AU

Year: 3348 Days

Day: 42.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,535,822 km

• M1: 36,053 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.78 AU - 5 AU

Year: 3360 Days

Day: 30.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.88 AU - 5.06 AU

Year: 3452 Days

Day: 21.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 73,535,822 km

• M1: 1,244,505 km (0.098 R)
• M2: 2,568,446 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.5

Radius: 9.6

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 7.18 AU - 7.7 AU

Year: 7412 Days

Day: 6.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 158.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,535,822 km

• M1: 119,379 km (0.094 R)
• M2: 425,905 km (0.058 R)
• M3: 989,590 km (0.044 R)
• M4: 1,305,989 km (0.052 R)
• M5: 2,322,956 km (0.101 R)
• M6: 2,765,915 km (0.061 R)
• M7: 3,535,746 km (0.103 R)
• M8: 4,568,719 km (0.098 R)
• M9: 6,317,817 km (0.09 R)
• M10: 7,719,699 km (0.09 R)
• M11: 8,128,700 km (0.111 R)
• M12: 8,630,900 km (0.117 R)
• M13: 8,949,992 km (0.07 R)
• M14: 9,401,628 km (0.118 R)
• M15: 10,987,216 km (0.117 R)
• M16: 12,489,328 km (0.079 R)
• M17: 13,742,808 km (0.048 R)
• M18: 14,123,685 km (0.077 R)
• M19: 15,366,992 km (0.086 R)
• M20: 17,053,110 km (0.077 R)
• M21: 17,556,657 km (0.063 R)
• M22: 18,005,301 km (0.102 R)
• M23: 19,194,454 km (0.068 R)
• M24: 21,003,391 km (0.084 R)
• M25: 22,097,101 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.3

Radius: 3.4

Gravity: 61.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 12.32 AU - 15.14 AU

Year: 18582 Days

Day: 21.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,535,822 km

• M1: 97,687 km (0.11 R)
• M2: 349,012 km (0.093 R)
• M3: 803,640 km (0.095 R)
• M4: 1,008,290 km (0.085 R)
• M5: 1,872,068 km (0.11 R)
• M6: 2,956,503 km (0.061 R)
• M7: 3,675,171 km (0.105 R)
• M8: 4,606,118 km (0.104 R)
• M9: 6,302,708 km (0.069 R)
• M10: 9,964,265 km (0.062 R)
• M11: 12,538,546 km (0.085 R)
• M12: 13,796,514 km (0.027 R)
• M13: 21,752,877 km (0.12 R)
• M14: 24,501,887 km (0.116 R)
• M15: 32,816,238 km (0.071 R)
• M16: 34,651,205 km (0.118 R)
• M17: 43,914,156 km (0.087 R)
• M18: 45,017,440 km (0.108 R)
• M19: 45,816,741 km (0.088 R)
• M20: 51,330,769 km (0.037 R)
• M21: 55,790,880 km (0.111 R)
• M22: 64,053,919 km (0.117 R)
• M23: 68,370,266 km (0.042 R)
• M24: 71,137,079 km (0.117 R)
• M25: 72,003,250 km (0.113 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 16,186 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit