🌌 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: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.68 AU - 0.9 AU

Year: 250 Days

Day: 18 Hours

Environment

Temp: 170 °C

Axial Tilt: 164.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.9 AU - 1.14 AU

Year: 367 Days

Day: 32.2 Hours

Environment

Temp: 124 °C

Axial Tilt: 44.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,837,251 km

• M1: 187,895 km (0.07 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.09 AU - 1.49 AU

Year: 522 Days

Day: 24 Hours

Environment

Temp: -4 °C

Axial Tilt: 1.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.4 AU - 2.58 AU

Year: 1401 Days

Day: 28.5 Hours

Environment

Temp: -80 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,837,251 km

• M1: 626,815 km (0.098 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.83 AU - 4.29 AU

Year: 2916 Days

Day: 18 Hours

Environment

Temp: -120 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.8

Radius: 9.4

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.01 AU - 10.31 AU

Year: 9084 Days

Day: 6.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,837,251 km

• M1: 118,332 km (0.094 R)
• M2: 473,328 km (0.111 R)
• M3: 864,376 km (0.104 R)
• M4: 1,703,471 km (0.077 R)
• M5: 2,504,119 km (0.107 R)
• M6: 2,800,472 km (0.078 R)
• M7: 3,585,412 km (0.092 R)
• M8: 5,422,773 km (0.06 R)
• M9: 6,096,412 km (0.115 R)
• M10: 7,898,917 km (0.05 R)
• M11: 9,501,410 km (0.11 R)
• M12: 11,151,025 km (0.028 R)
• M13: 11,578,127 km (0.072 R)
• M14: 12,127,301 km (0.113 R)
• M15: 14,688,865 km (0.101 R)
• M16: 15,794,244 km (0.1 R)
• M17: 17,094,399 km (0.108 R)
• M18: 22,165,917 km (0.086 R)
• M19: 22,502,063 km (0.102 R)
• M20: 24,951,578 km (0.058 R)
• M21: 27,670,520 km (0.089 R)
• M22: 29,962,808 km (0.108 R)
• M23: 30,477,275 km (0.092 R)
• M24: 31,736,440 km (0.107 R)
• M25: 32,594,833 km (0.082 R)
• M26: 34,245,945 km (0.032 R)
• M27: 36,183,686 km (0.063 R)
• M28: 37,238,650 km (0.068 R)
• M29: 42,434,483 km (0.103 R)
• M30: 43,476,133 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.8

Radius: 11.9

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 12.29 AU - 13.11 AU

Year: 16132 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,837,251 km

• M1: 148,850 km (0.086 R)
• M2: 525,089 km (0.113 R)
• M3: 948,002 km (0.09 R)
• M4: 6,081,752 km (0.077 R)
• M5: 7,793,750 km (0.092 R)
• M6: 12,478,706 km (0.116 R)
• M7: 13,801,301 km (0.098 R)
• M8: 15,524,818 km (0.071 R)
• M9: 22,042,049 km (0.071 R)
• M10: 22,639,095 km (0.075 R)
• M11: 28,042,121 km (0.085 R)
• M12: 32,554,142 km (0.05 R)
• M13: 43,141,333 km (0.027 R)
• M14: 46,797,206 km (0.114 R)
• M15: 49,798,887 km (0.096 R)
• M16: 54,538,297 km (0.109 R)
• M17: 56,552,633 km (0.094 R)
• M18: 62,297,490 km (0.071 R)
• M19: 64,094,011 km (0.119 R)
• M20: 71,192,879 km (0.083 R)
• M21: 72,936,292 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221

Radius: 5.9

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 11.6 AU - 18.64 AU

Year: 20957 Days

Day: 16.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,837,251 km

• M1: 76,594 km (0.073 R)
• M2: 1,062,594 km (0.108 R)
• M3: 1,525,001 km (0.073 R)
• M4: 5,584,339 km (0.107 R)
• M5: 6,956,451 km (0.12 R)
• M6: 13,645,271 km (0.116 R)
• M7: 16,461,750 km (0.076 R)
• M8: 19,643,098 km (0.076 R)
• M9: 39,398,095 km (0.109 R)
• M10: 40,188,870 km (0.055 R)
• M11: 42,212,330 km (0.119 R)
• M12: 46,023,785 km (0.088 R)
• M13: 50,985,946 km (0.083 R)

Kuiper Belt

Range: 30.8 - 50.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 12,654 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit