🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.57 AU - 0.67 AU

Year: 185 Days

Day: 46.4 Hours

Environment

Temp: 187 °C

Axial Tilt: 1.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.73 AU - 0.91 AU

Year: 281 Days

Day: 24.6 Hours

Environment

Temp: 154 °C

Axial Tilt: 96.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.78 AU - 1 AU

Year: 318 Days

Day: 29.6 Hours

Environment

Temp: 39 °C

Axial Tilt: 31 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 96,131,725 km

• M1: 35,155 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.85 AU - 0.95 AU

Year: 323 Days

Day: 15.8 Hours

Environment

Temp: 23 °C

Axial Tilt: 7.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 96,131,725 km

• M1: 198,367 km (0.097 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.46 AU - 2.68 AU

Year: 1560 Days

Day: 16.2 Hours

Environment

Temp: -93 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679

Radius: 12.4

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 6.08 AU - 7.2 AU

Year: 6480 Days

Day: 12.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 96,131,725 km

• M1: 154,385 km (0.116 R)
• M2: 622,626 km (0.1 R)
• M3: 1,165,218 km (0.109 R)
• M4: 2,452,059 km (0.116 R)
• M5: 4,021,789 km (0.065 R)
• M6: 4,662,367 km (0.038 R)
• M7: 5,986,608 km (0.048 R)
• M8: 12,377,279 km (0.066 R)
• M9: 14,770,995 km (0.099 R)
• M10: 15,369,087 km (0.039 R)
• M11: 20,900,767 km (0.101 R)
• M12: 22,899,694 km (0.111 R)
• M13: 24,191,472 km (0.094 R)
• M14: 26,393,253 km (0.091 R)
• M15: 29,658,227 km (0.066 R)
• M16: 30,997,726 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.9

Radius: 9.8

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 10.48 AU - 12.08 AU

Year: 14349 Days

Day: 7 Hours

Environment

Temp: -183 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 96,131,725 km

• M1: 124,017 km (0.042 R)
• M2: 647,908 km (0.104 R)
• M3: 1,534,725 km (0.073 R)
• M4: 2,133,415 km (0.066 R)
• M5: 5,298,457 km (0.08 R)
• M6: 12,243,838 km (0.092 R)
• M7: 16,696,020 km (0.118 R)
• M8: 20,969,283 km (0.114 R)
• M9: 28,884,656 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.3

Radius: 5.6

Gravity: 30.56 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 14.12 AU - 17.68 AU

Year: 24013 Days

Day: 22.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 96,131,725 km

• M1: 74,500 km (0.063 R)
• M2: 381,026 km (0.08 R)
• M3: 718,219 km (0.094 R)
• M4: 1,364,632 km (0.12 R)
• M5: 2,223,922 km (0.053 R)
• M6: 2,461,334 km (0.112 R)
• M7: 4,083,274 km (0.081 R)
• M8: 5,811,877 km (0.097 R)
• M9: 6,985,323 km (0.08 R)
• M10: 7,707,282 km (0.073 R)
• M11: 8,592,004 km (0.098 R)
• M12: 9,058,749 km (0.091 R)
• M13: 9,665,967 km (0.045 R)
• M14: 10,561,161 km (0.102 R)
• M15: 10,961,186 km (0.07 R)
• M16: 11,650,233 km (0.116 R)
• M17: 12,514,909 km (0.078 R)
• M18: 15,196,002 km (0.05 R)
• M19: 19,400,151 km (0.119 R)
• M20: 21,660,126 km (0.039 R)
• M21: 24,550,058 km (0.116 R)
• M22: 29,613,198 km (0.062 R)
• M23: 34,017,359 km (0.113 R)
• M24: 39,631,019 km (0.108 R)
• M25: 40,272,495 km (0.113 R)
• M26: 41,411,832 km (0.087 R)
• M27: 43,925,226 km (0.081 R)
• M28: 47,073,214 km (0.059 R)
• M29: 51,310,274 km (0.053 R)
• M30: 53,035,138 km (0.058 R)
• M31: 55,195,481 km (0.116 R)
• M32: 62,458,308 km (0.113 R)
• M33: 62,674,626 km (0.09 R)
• M34: 63,983,458 km (0.094 R)
• M35: 72,698,132 km (0.067 R)
• M36: 73,900,600 km (0.1 R)
• M37: 76,345,179 km (0.104 R)
• M38: 84,001,299 km (0.052 R)
• M39: 85,591,524 km (0.117 R)
• M40: 87,471,969 km (0.056 R)
• M41: 91,315,438 km (0.04 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 11,368 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit