🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.66 AU - 0.94 AU

Year: 272 Days

Day: 45.5 Hours

Environment

Temp: 67 °C

Axial Tilt: 37.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,279,412 km

• M1: 245,191 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.97 AU - 1.31 AU

Year: 464 Days

Day: 21.2 Hours

Environment

Temp: -2 °C

Axial Tilt: 6.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330

Radius: 13.5

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.94 AU - 6.16 AU

Year: 4979 Days

Day: 7.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,279,412 km

• M1: 167,849 km (0.103 R)
• M2: 660,624 km (0.11 R)
• M3: 4,196,220 km (0.037 R)
• M4: 6,197,241 km (0.105 R)
• M5: 7,767,121 km (0.041 R)
• M6: 8,915,584 km (0.107 R)
• M7: 10,496,684 km (0.112 R)
• M8: 11,635,573 km (0.082 R)
• M9: 12,485,289 km (0.078 R)
• M10: 15,976,604 km (0.045 R)
• M11: 20,389,143 km (0.104 R)
• M12: 22,839,705 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 12.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 8.19 AU - 8.29 AU

Year: 9007 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,279,412 km

• M1: 155,283 km (0.099 R)
• M2: 2,348,238 km (0.1 R)
• M3: 3,024,121 km (0.079 R)
• M4: 4,981,310 km (0.08 R)
• M5: 7,273,748 km (0.118 R)
• M6: 9,119,785 km (0.106 R)
• M7: 11,646,942 km (0.096 R)
• M8: 14,158,092 km (0.104 R)
• M9: 14,896,058 km (0.082 R)
• M10: 17,010,774 km (0.114 R)
• M11: 17,456,576 km (0.085 R)
• M12: 26,030,179 km (0.037 R)
• M13: 28,276,690 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.8

Radius: 13.4

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.76 AU - 9.72 AU

Year: 9007 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,279,412 km

• M1: 166,652 km (0.111 R)
• M2: 757,863 km (0.087 R)
• M3: 1,802,056 km (0.118 R)
• M4: 2,656,858 km (0.106 R)
• M5: 4,346,716 km (0.074 R)
• M6: 5,351,265 km (0.098 R)
• M7: 7,519,088 km (0.051 R)
• M8: 8,346,664 km (0.078 R)
• M9: 9,967,108 km (0.029 R)
• M10: 11,158,356 km (0.043 R)
• M11: 14,274,330 km (0.096 R)
• M12: 15,207,372 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.9

Radius: 4

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 13.3 AU - 18.7 AU

Year: 24371 Days

Day: 17.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,279,412 km

• M1: 49,816 km (0.108 R)
• M2: 204,500 km (0.084 R)
• M3: 371,900 km (0.114 R)
• M4: 518,656 km (0.094 R)
• M5: 645,814 km (0.109 R)
• M6: 832,512 km (0.089 R)
• M7: 1,198,279 km (0.093 R)
• M8: 1,453,194 km (0.045 R)
• M9: 2,107,535 km (0.068 R)
• M10: 2,562,612 km (0.112 R)
• M11: 3,828,509 km (0.108 R)
• M12: 4,564,530 km (0.072 R)
• M13: 4,818,847 km (0.117 R)
• M14: 5,602,739 km (0.087 R)
• M15: 6,953,459 km (0.112 R)
• M16: 8,459,760 km (0.083 R)
• M17: 8,990,234 km (0.077 R)
• M18: 9,542,549 km (0.109 R)
• M19: 13,276,362 km (0.117 R)
• M20: 14,392,512 km (0.046 R)
• M21: 22,703,422 km (0.112 R)
• M22: 26,461,171 km (0.091 R)
• M23: 27,800,371 km (0.12 R)
• M24: 29,838,043 km (0.046 R)
• M25: 32,667,837 km (0.092 R)
• M26: 36,043,662 km (0.086 R)
• M27: 38,202,808 km (0.079 R)
• M28: 48,760,828 km (0.108 R)
• M29: 52,831,236 km (0.026 R)
• M30: 54,291,162 km (0.086 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: 399 - 11,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit