🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.7 AU - 1.06 AU

Year: 296 Days

Day: 41.5 Hours

Environment

Temp: 174 °C

Axial Tilt: 13.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.36 AU - 2.06 AU

Year: 801 Days

Day: 33.6 Hours

Environment

Temp: -38 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.56 AU - 1.96 AU

Year: 836 Days

Day: 20.2 Hours

Environment

Temp: -52 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.69 AU - 4.13 AU

Year: 2255 Days

Day: 28.4 Hours

Environment

Temp: -107 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.8

Radius: 9.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.82 AU - 8.36 AU

Year: 6761 Days

Day: 7.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,951,887 km

• M1: 123,119 km (0.112 R)
• M2: 511,625 km (0.1 R)
• M3: 1,367,773 km (0.062 R)
• M4: 1,830,629 km (0.047 R)
• M5: 2,363,198 km (0.07 R)
• M6: 2,828,297 km (0.032 R)
• M7: 3,500,291 km (0.109 R)
• M8: 4,373,344 km (0.112 R)
• M9: 5,385,374 km (0.1 R)
• M10: 7,683,646 km (0.104 R)
• M11: 8,090,552 km (0.116 R)
• M12: 8,668,598 km (0.099 R)
• M13: 9,523,849 km (0.087 R)
• M14: 11,449,473 km (0.077 R)
• M15: 11,785,919 km (0.071 R)
• M16: 13,041,643 km (0.11 R)
• M17: 14,384,434 km (0.116 R)
• M18: 14,832,928 km (0.086 R)
• M19: 16,174,821 km (0.085 R)
• M20: 16,598,781 km (0.051 R)
• M21: 16,967,989 km (0.106 R)
• M22: 17,532,272 km (0.055 R)
• M23: 21,112,299 km (0.083 R)
• M24: 21,473,278 km (0.108 R)
• M25: 23,494,645 km (0.089 R)
• M26: 24,195,810 km (0.104 R)
• M27: 26,801,955 km (0.053 R)
• M28: 27,567,447 km (0.042 R)
• M29: 28,172,869 km (0.069 R)
• M30: 30,042,244 km (0.119 R)
• M31: 30,868,174 km (0.089 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.2

Radius: 4.9

Gravity: 14.29 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 10.95 AU - 14.91 AU

Year: 16652 Days

Day: 17.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,951,887 km

• M1: 65,823 km (0.084 R)
• M2: 227,239 km (0.086 R)
• M3: 463,155 km (0.095 R)
• M4: 622,028 km (0.11 R)
• M5: 790,326 km (0.096 R)
• M6: 1,310,777 km (0.082 R)
• M7: 2,105,590 km (0.105 R)
• M8: 2,553,486 km (0.079 R)
• M9: 3,454,514 km (0.11 R)
• M10: 4,075,794 km (0.094 R)
• M11: 5,193,440 km (0.073 R)
• M12: 5,397,940 km (0.089 R)
• M13: 5,859,150 km (0.094 R)
• M14: 6,982,331 km (0.107 R)
• M15: 8,059,735 km (0.044 R)
• M16: 8,661,717 km (0.109 R)
• M17: 9,594,609 km (0.114 R)
• M18: 12,427,394 km (0.085 R)
• M19: 13,869,817 km (0.091 R)
• M20: 14,597,611 km (0.044 R)
• M21: 17,082,581 km (0.081 R)
• M22: 20,251,662 km (0.078 R)
• M23: 20,758,500 km (0.115 R)
• M24: 29,625,315 km (0.115 R)
• M25: 31,500,076 km (0.054 R)
• M26: 32,180,148 km (0.116 R)
• M27: 34,160,375 km (0.11 R)
• M28: 37,977,813 km (0.117 R)
• M29: 38,618,990 km (0.097 R)
• M30: 43,589,977 km (0.118 R)
• M31: 47,475,183 km (0.058 R)
• M32: 49,577,632 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.4

Radius: 4.9

Gravity: 10.93 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 15.26 AU - 16.44 AU

Year: 22600 Days

Day: 16.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,951,887 km

• M1: 61,036 km (0.115 R)
• M2: 236,065 km (0.115 R)
• M3: 974,481 km (0.068 R)
• M4: 1,306,438 km (0.065 R)
• M5: 2,252,645 km (0.109 R)
• M6: 2,498,883 km (0.114 R)
• M7: 2,878,562 km (0.096 R)
• M8: 3,347,252 km (0.114 R)
• M9: 4,010,121 km (0.119 R)
• M10: 9,702,768 km (0.063 R)
• M11: 10,863,049 km (0.09 R)
• M12: 14,823,503 km (0.101 R)
• M13: 23,841,562 km (0.117 R)
• M14: 26,247,994 km (0.068 R)
• M15: 29,032,309 km (0.096 R)
• M16: 32,244,475 km (0.103 R)
• M17: 34,678,432 km (0.116 R)
• M18: 48,702,335 km (0.041 R)
• M19: 49,330,646 km (0.06 R)
• M20: 49,964,342 km (0.082 R)
• M21: 53,546,912 km (0.115 R)
• M22: 55,571,420 km (0.119 R)

Kuiper Belt

Range: 30.6 - 59.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 14,463 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit