🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.55 AU - 0.73 AU

Year: 187 Days

Day: 41.3 Hours

Environment

Temp: 220 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.49 AU - 4.69 AU

Year: 3592 Days

Day: 22.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.1

Radius: 8.9

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 5.61 AU - 6.27 AU

Year: 5288 Days

Day: 8 Hours

Environment

Temp: -140 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,040,837 km

• M1: 111,600 km (0.116 R)
• M2: 402,269 km (0.042 R)
• M3: 981,063 km (0.063 R)
• M4: 1,761,814 km (0.068 R)
• M5: 4,393,989 km (0.12 R)
• M6: 6,236,436 km (0.087 R)
• M7: 6,613,871 km (0.108 R)
• M8: 7,449,525 km (0.074 R)
• M9: 8,391,543 km (0.077 R)
• M10: 11,740,890 km (0.053 R)
• M11: 13,736,226 km (0.071 R)
• M12: 15,659,157 km (0.066 R)
• M13: 22,276,320 km (0.055 R)
• M14: 23,837,822 km (0.114 R)
• M15: 27,260,322 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.7

Radius: 9.7

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.19 AU - 9.43 AU

Year: 7972 Days

Day: 9.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,040,837 km

• M1: 139,874 km (0.116 R)
• M2: 1,139,038 km (0.073 R)
• M3: 2,401,794 km (0.11 R)
• M4: 3,785,574 km (0.114 R)
• M5: 4,121,571 km (0.09 R)
• M6: 4,662,966 km (0.063 R)
• M7: 5,427,860 km (0.113 R)
• M8: 7,462,391 km (0.102 R)
• M9: 9,257,266 km (0.113 R)
• M10: 10,278,122 km (0.114 R)
• M11: 11,079,667 km (0.106 R)
• M12: 11,471,165 km (0.057 R)
• M13: 13,623,579 km (0.072 R)
• M14: 16,344,465 km (0.066 R)
• M15: 18,643,335 km (0.092 R)
• M16: 20,484,885 km (0.09 R)
• M17: 21,000,699 km (0.105 R)
• M18: 22,835,217 km (0.082 R)
• M19: 23,710,814 km (0.038 R)
• M20: 29,347,512 km (0.108 R)
• M21: 30,956,886 km (0.117 R)
• M22: 32,325,706 km (0.117 R)
• M23: 34,247,441 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.3

Radius: 15

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 7.85 AU - 9.73 AU

Year: 9519 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,040,837 km

• M1: 186,549 km (0.104 R)
• M2: 796,160 km (0.081 R)
• M3: 1,335,610 km (0.088 R)
• M4: 2,018,674 km (0.117 R)
• M5: 3,150,382 km (0.12 R)
• M6: 5,034,567 km (0.113 R)
• M7: 7,102,757 km (0.12 R)
• M8: 7,775,200 km (0.042 R)
• M9: 11,243,327 km (0.098 R)
• M10: 15,387,637 km (0.11 R)
• M11: 16,260,840 km (0.116 R)
• M12: 17,766,842 km (0.102 R)
• M13: 19,292,740 km (0.078 R)
• M14: 20,234,608 km (0.082 R)
• M15: 23,083,550 km (0.043 R)
• M16: 24,730,174 km (0.113 R)
• M17: 26,103,033 km (0.103 R)
• M18: 27,165,477 km (0.114 R)
• M19: 28,164,642 km (0.091 R)
• M20: 34,470,341 km (0.102 R)
• M21: 36,073,731 km (0.094 R)
• M22: 36,949,028 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.4

Radius: 6.4

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 11.63 AU - 17.49 AU

Year: 20292 Days

Day: 20.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,040,837 km

• M1: 81,232 km (0.099 R)
• M2: 560,842 km (0.064 R)
• M3: 931,546 km (0.069 R)
• M4: 1,228,647 km (0.112 R)
• M5: 1,456,036 km (0.113 R)
• M6: 1,776,176 km (0.085 R)
• M7: 3,317,183 km (0.07 R)
• M8: 3,548,461 km (0.108 R)
• M9: 4,367,659 km (0.075 R)
• M10: 5,068,675 km (0.117 R)
• M11: 5,623,833 km (0.052 R)
• M12: 6,180,187 km (0.088 R)
• M13: 8,024,729 km (0.112 R)
• M14: 8,255,259 km (0.12 R)
• M15: 8,585,422 km (0.06 R)
• M16: 10,208,110 km (0.06 R)
• M17: 10,588,537 km (0.117 R)
• M18: 13,072,909 km (0.077 R)
• M19: 13,521,553 km (0.111 R)
• M20: 13,980,519 km (0.084 R)
• M21: 15,776,591 km (0.12 R)
• M22: 19,321,463 km (0.117 R)
• M23: 25,284,135 km (0.067 R)
• M24: 27,204,074 km (0.071 R)
• M25: 27,620,255 km (0.105 R)
• M26: 27,935,158 km (0.101 R)
• M27: 33,069,357 km (0.097 R)
• M28: 34,022,146 km (0.095 R)
• M29: 35,115,557 km (0.087 R)
• M30: 39,591,376 km (0.025 R)
• M31: 40,260,228 km (0.118 R)
• M32: 40,529,953 km (0.103 R)
• M33: 43,293,325 km (0.09 R)
• M34: 47,219,521 km (0.098 R)
• M35: 52,332,477 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500.7

Radius: 7.8

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 14.31 AU - 20.21 AU

Year: 26191 Days

Day: 18.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,040,837 km

• M1: 112,946 km (0.086 R)
• M2: 426,354 km (0.112 R)
• M3: 676,930 km (0.108 R)
• M4: 981,512 km (0.094 R)
• M5: 1,287,439 km (0.084 R)
• M6: 2,200,734 km (0.12 R)
• M7: 4,522,792 km (0.088 R)
• M8: 6,387,530 km (0.095 R)
• M9: 6,935,507 km (0.087 R)
• M10: 7,664,198 km (0.057 R)
• M11: 12,574,898 km (0.037 R)
• M12: 13,730,392 km (0.039 R)
• M13: 14,798,221 km (0.063 R)
• M14: 15,352,481 km (0.09 R)
• M15: 21,983,407 km (0.111 R)
• M16: 23,655,463 km (0.057 R)
• M17: 34,528,984 km (0.115 R)
• M18: 35,223,118 km (0.094 R)
• M19: 39,887,879 km (0.102 R)
• M20: 62,051,252 km (0.105 R)
• M21: 62,870,899 km (0.069 R)
• M22: 66,648,993 km (0.107 R)
• M23: 76,750,589 km (0.051 R)
• M24: 80,089,913 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 18,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit