🌌 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: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.59 AU - 0.95 AU

Year: 249 Days

Day: 30.9 Hours

Environment

Temp: 110 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.39 AU - 2.31 AU

Year: 928 Days

Day: 14 Hours

Environment

Temp: -57 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.97 AU - 4.73 AU

Year: 2787 Days

Day: 14.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.36 AU - 4.58 AU

Year: 2919 Days

Day: 45.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 70,721,603 km

• M1: 56,847 km (0.11 R)
• M2: 1,321,398 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.1

Radius: 14.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 7.32 AU - 10.24 AU

Year: 9599 Days

Day: 9.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,721,603 km

• M1: 191,186 km (0.095 R)
• M2: 934,089 km (0.058 R)
• M3: 5,262,853 km (0.098 R)
• M4: 7,944,395 km (0.066 R)
• M5: 9,057,403 km (0.099 R)
• M6: 11,123,350 km (0.039 R)
• M7: 13,196,477 km (0.119 R)
• M8: 13,901,831 km (0.112 R)
• M9: 15,323,908 km (0.095 R)
• M10: 16,977,713 km (0.094 R)
• M11: 20,096,230 km (0.102 R)
• M12: 20,559,834 km (0.059 R)
• M13: 24,094,682 km (0.111 R)
• M14: 26,788,939 km (0.109 R)
• M15: 30,992,490 km (0.081 R)
• M16: 31,508,304 km (0.072 R)
• M17: 32,769,414 km (0.062 R)
• M18: 34,173,390 km (0.03 R)
• M19: 38,745,250 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.3

Radius: 9.4

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 10.44 AU - 11.22 AU

Year: 13150 Days

Day: 12.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,721,603 km

• M1: 116,836 km (0.055 R)
• M2: 523,293 km (0.12 R)
• M3: 895,493 km (0.094 R)
• M4: 1,305,690 km (0.1 R)
• M5: 2,755,742 km (0.11 R)
• M6: 6,467,116 km (0.1 R)
• M7: 8,544,432 km (0.098 R)
• M8: 9,573,067 km (0.072 R)
• M9: 10,510,746 km (0.082 R)
• M10: 11,031,347 km (0.088 R)
• M11: 12,439,961 km (0.099 R)
• M12: 14,033,926 km (0.111 R)
• M13: 21,503,048 km (0.085 R)
• M14: 22,153,799 km (0.084 R)
• M15: 23,789,203 km (0.062 R)
• M16: 26,549,433 km (0.102 R)
• M17: 32,212,311 km (0.096 R)
• M18: 38,088,665 km (0.054 R)
• M19: 40,711,265 km (0.05 R)
• M20: 41,707,138 km (0.088 R)
• M21: 42,138,878 km (0.107 R)
• M22: 48,977,894 km (0.054 R)
• M23: 50,592,055 km (0.073 R)
• M24: 54,096,834 km (0.081 R)
• M25: 55,300,199 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.2

Radius: 9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 10.61 AU - 11.13 AU

Year: 13223 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,721,603 km

• M1: 111,899 km (0.115 R)
• M2: 563,236 km (0.059 R)
• M3: 1,000,660 km (0.067 R)
• M4: 2,972,809 km (0.094 R)
• M5: 10,768,055 km (0.081 R)
• M6: 14,889,177 km (0.118 R)
• M7: 20,339,476 km (0.035 R)
• M8: 21,441,115 km (0.027 R)
• M9: 29,096,337 km (0.085 R)
• M10: 32,992,464 km (0.082 R)
• M11: 36,190,118 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.7

Radius: 9.5

Gravity: 10.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 9.87 AU - 14.23 AU

Year: 15433 Days

Day: 8.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,721,603 km

• M1: 120,277 km (0.088 R)
• M2: 477,367 km (0.112 R)
• M3: 1,082,041 km (0.034 R)
• M4: 2,475,396 km (0.048 R)
• M5: 2,772,497 km (0.105 R)
• M6: 6,681,490 km (0.103 R)
• M7: 7,448,478 km (0.036 R)
• M8: 8,681,464 km (0.086 R)
• M9: 9,874,656 km (0.081 R)
• M10: 10,929,620 km (0.108 R)
• M11: 13,331,564 km (0.058 R)
• M12: 14,766,507 km (0.098 R)
• M13: 15,140,950 km (0.117 R)
• M14: 20,974,968 km (0.109 R)
• M15: 22,514,629 km (0.049 R)
• M16: 23,717,695 km (0.104 R)
• M17: 25,602,030 km (0.12 R)
• M18: 30,023,245 km (0.087 R)
• M19: 30,624,629 km (0.108 R)
• M20: 42,868,167 km (0.118 R)
• M21: 48,891,576 km (0.054 R)
• M22: 56,178,937 km (0.079 R)
• M23: 68,624,582 km (0.058 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 20,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit