🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.54 AU - 0.62 AU

Year: 169 Days

Day: 16.2 Hours

Environment

Temp: 159 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.96 AU - 0.96 AU

Year: 360 Days

Day: 24.2 Hours

Environment

Temp: -1 °C

Axial Tilt: 14.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 56,409,679 km

• M1: 52,658 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.08 AU - 1.4 AU

Year: 529 Days

Day: 12.1 Hours

Environment

Temp: -33 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.41 AU - 1.61 AU

Year: 710 Days

Day: 39.5 Hours

Environment

Temp: -50 °C

Axial Tilt: 68.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.84 AU - 2.9 AU

Year: 1397 Days

Day: 32.9 Hours

Environment

Temp: -106 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.24 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.6

Radius: 11.7

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.05 AU - 7.17 AU

Year: 5783 Days

Day: 14.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,409,679 km

• M1: 145,708 km (0.1 R)
• M2: 694,882 km (0.105 R)
• M3: 1,186,760 km (0.083 R)
• M4: 1,736,233 km (0.118 R)
• M5: 2,153,013 km (0.119 R)
• M6: 2,759,782 km (0.108 R)
• M7: 4,693,932 km (0.114 R)
• M8: 5,120,137 km (0.032 R)
• M9: 5,514,178 km (0.102 R)
• M10: 6,491,800 km (0.092 R)
• M11: 9,029,279 km (0.104 R)
• M12: 9,904,576 km (0.085 R)
• M13: 10,429,515 km (0.101 R)
• M14: 13,603,234 km (0.107 R)
• M15: 14,197,736 km (0.104 R)
• M16: 14,979,235 km (0.118 R)
• M17: 18,395,003 km (0.113 R)
• M18: 19,122,198 km (0.081 R)
• M19: 20,846,463 km (0.115 R)
• M20: 24,760,692 km (0.066 R)
• M21: 28,347,600 km (0.06 R)
• M22: 29,676,178 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.7

Radius: 11.1

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.4 AU - 9.3 AU

Year: 9238 Days

Day: 11.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 168.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,409,679 km

• M1: 138,528 km (0.111 R)
• M2: 723,754 km (0.117 R)
• M3: 1,215,034 km (0.033 R)
• M4: 2,603,901 km (0.037 R)
• M5: 3,318,081 km (0.114 R)
• M6: 5,901,187 km (0.032 R)
• M7: 8,393,637 km (0.067 R)
• M8: 9,847,429 km (0.066 R)
• M9: 10,556,374 km (0.118 R)
• M10: 12,019,441 km (0.115 R)
• M11: 15,144,840 km (0.106 R)
• M12: 21,662,370 km (0.057 R)
• M13: 25,766,288 km (0.113 R)
• M14: 28,604,310 km (0.079 R)
• M15: 40,493,002 km (0.082 R)
• M16: 42,441,066 km (0.042 R)
• M17: 46,383,418 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656

Radius: 11.9

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.36 AU - 12.66 AU

Year: 13046 Days

Day: 12.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,409,679 km

• M1: 147,952 km (0.106 R)
• M2: 1,889,870 km (0.104 R)
• M3: 2,378,905 km (0.093 R)
• M4: 3,615,332 km (0.038 R)
• M5: 4,082,675 km (0.083 R)
• M6: 5,006,293 km (0.103 R)
• M7: 8,013,210 km (0.08 R)
• M8: 12,793,161 km (0.111 R)
• M9: 17,451,040 km (0.087 R)
• M10: 17,838,499 km (0.12 R)
• M11: 23,411,768 km (0.051 R)
• M12: 24,651,036 km (0.103 R)
• M13: 27,260,023 km (0.047 R)
• M14: 28,846,060 km (0.043 R)
• M15: 30,047,780 km (0.053 R)
• M16: 30,717,080 km (0.106 R)
• M17: 33,973,228 km (0.114 R)
• M18: 38,882,282 km (0.061 R)
• M19: 44,244,617 km (0.049 R)
• M20: 48,997,192 km (0.114 R)
• M21: 50,392,791 km (0.041 R)
• M22: 54,573,453 km (0.072 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: 445 - 18,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit