🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.56 AU - 0.88 AU

Year: 233 Days

Day: 32.3 Hours

Environment

Temp: 144 °C

Axial Tilt: 44.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.64 AU - 1.06 AU

Year: 298 Days

Day: 43.7 Hours

Environment

Temp: 47 °C

Axial Tilt: 29.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.39 AU - 1.61 AU

Year: 700 Days

Day: 44.8 Hours

Environment

Temp: -43 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.67 AU - 2.91 AU

Year: 1775 Days

Day: 36.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,902,778 km

• M1: 621,878 km (0.081 R)
• M2: 975,677 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.6

Radius: 13.2

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.6 AU - 8 AU

Year: 7511 Days

Day: 13.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,902,778 km

• M1: 170,542 km (0.114 R)
• M2: 719,416 km (0.077 R)
• M3: 1,397,244 km (0.094 R)
• M4: 1,881,492 km (0.1 R)
• M5: 2,888,136 km (0.102 R)
• M6: 3,448,829 km (0.082 R)
• M7: 5,007,789 km (0.11 R)
• M8: 5,491,887 km (0.113 R)
• M9: 6,132,914 km (0.115 R)
• M10: 7,348,098 km (0.059 R)
• M11: 8,321,382 km (0.062 R)
• M12: 10,941,289 km (0.119 R)
• M13: 11,710,821 km (0.116 R)
• M14: 12,723,149 km (0.064 R)
• M15: 15,213,505 km (0.108 R)
• M16: 16,792,211 km (0.074 R)
• M17: 18,814,176 km (0.063 R)
• M18: 21,656,985 km (0.067 R)
• M19: 24,856,584 km (0.073 R)
• M20: 32,862,015 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.6

Radius: 10.4

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.73 AU - 12.11 AU

Year: 11898 Days

Day: 7.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,902,778 km

• M1: 129,402 km (0.086 R)
• M2: 487,689 km (0.113 R)
• M3: 1,303,596 km (0.083 R)
• M4: 1,832,873 km (0.065 R)
• M5: 3,168,333 km (0.036 R)
• M6: 4,105,714 km (0.093 R)
• M7: 4,768,731 km (0.117 R)
• M8: 7,824,268 km (0.065 R)
• M9: 8,494,317 km (0.043 R)
• M10: 9,156,736 km (0.104 R)
• M11: 11,040,622 km (0.119 R)
• M12: 12,432,032 km (0.102 R)
• M13: 16,686,745 km (0.091 R)
• M14: 17,938,430 km (0.059 R)
• M15: 18,514,532 km (0.12 R)
• M16: 20,008,566 km (0.103 R)
• M17: 20,394,229 km (0.062 R)
• M18: 21,021,792 km (0.115 R)
• M19: 21,662,071 km (0.119 R)
• M20: 22,232,936 km (0.096 R)
• M21: 23,575,727 km (0.118 R)
• M22: 24,006,120 km (0.099 R)
• M23: 26,793,128 km (0.101 R)
• M24: 29,688,894 km (0.034 R)
• M25: 33,648,451 km (0.034 R)
• M26: 34,414,392 km (0.062 R)
• M27: 37,012,907 km (0.09 R)
• M28: 41,463,294 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863

Radius: 13.4

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 9.38 AU - 12.92 AU

Year: 14178 Days

Day: 11.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,902,778 km

• M1: 166,652 km (0.115 R)
• M2: 642,523 km (0.117 R)
• M3: 1,209,499 km (0.062 R)
• M4: 1,659,340 km (0.119 R)
• M5: 3,548,611 km (0.065 R)
• M6: 4,400,272 km (0.109 R)
• M7: 4,858,191 km (0.094 R)
• M8: 5,948,161 km (0.08 R)
• M9: 6,932,665 km (0.106 R)
• M10: 7,740,194 km (0.085 R)
• M11: 9,016,264 km (0.091 R)
• M12: 14,669,567 km (0.098 R)
• M13: 17,735,127 km (0.101 R)
• M14: 19,679,301 km (0.11 R)
• M15: 20,477,405 km (0.061 R)
• M16: 23,196,646 km (0.11 R)
• M17: 24,898,322 km (0.111 R)
• M18: 26,681,678 km (0.112 R)
• M19: 27,659,599 km (0.049 R)
• M20: 29,456,868 km (0.07 R)
• M21: 37,429,088 km (0.106 R)
• M22: 39,068,681 km (0.088 R)
• M23: 42,932,345 km (0.101 R)
• M24: 46,886,965 km (0.096 R)
• M25: 47,674,448 km (0.117 R)
• M26: 56,571,332 km (0.084 R)
• M27: 58,911,342 km (0.073 R)
• M28: 61,315,081 km (0.053 R)
• M29: 64,750,297 km (0.101 R)
• M30: 65,335,075 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 411.3

Radius: 5.7

Gravity: 12.66 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 13.5 AU - 14.86 AU

Year: 20333 Days

Day: 16.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,902,778 km

• M1: 70,909 km (0.088 R)
• M2: 605,273 km (0.107 R)
• M3: 849,417 km (0.069 R)
• M4: 5,669,161 km (0.083 R)
• M5: 9,506,047 km (0.109 R)
• M6: 11,214,156 km (0.049 R)
• M7: 12,983,898 km (0.09 R)
• M8: 15,747,569 km (0.106 R)
• M9: 19,921,200 km (0.1 R)
• M10: 22,118,195 km (0.055 R)
• M11: 23,177,049 km (0.094 R)
• M12: 24,776,848 km (0.063 R)
• M13: 26,986,558 km (0.083 R)
• M14: 30,132,452 km (0.093 R)
• M15: 38,634,398 km (0.086 R)
• M16: 43,652,210 km (0.113 R)
• M17: 43,951,406 km (0.109 R)
• M18: 49,249,115 km (0.058 R)
• M19: 51,715,834 km (0.11 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: 389 - 16,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit