🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.43 AU - 0.59 AU

Year: 239 Days

Day: 19.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.5

Radius: 8.9

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.86 AU - 0.9 AU

Year: 542 Days

Day: 13.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,903,415 km

• M1: 111,450 km (0.078 R)
• M2: 411,095 km (0.104 R)
• M3: 757,863 km (0.091 R)
• M4: 1,108,520 km (0.092 R)
• M5: 1,453,194 km (0.117 R)
• M6: 1,853,667 km (0.073 R)
• M7: 2,263,266 km (0.047 R)
• M8: 2,743,027 km (0.07 R)
• M9: 3,208,426 km (0.114 R)
• M10: 3,687,887 km (0.097 R)
• M11: 4,524,887 km (0.049 R)
• M12: 5,034,866 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.4

Radius: 9.4

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.89 AU - 1.21 AU

Year: 706 Days

Day: 11.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,903,415 km

• M1: 117,434 km (0.071 R)
• M2: 414,835 km (0.118 R)
• M3: 877,840 km (0.053 R)
• M4: 2,043,507 km (0.068 R)
• M5: 2,346,742 km (0.082 R)
• M6: 3,374,928 km (0.104 R)
• M7: 4,251,422 km (0.098 R)
• M8: 4,565,877 km (0.068 R)
• M9: 5,149,907 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220

Radius: 10.7

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.96 AU - 1.98 AU

Year: 1814 Days

Day: 9.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,903,415 km

• M1: 133,142 km (0.102 R)
• M2: 470,186 km (0.089 R)
• M3: 902,524 km (0.112 R)
• M4: 1,354,908 km (0.091 R)
• M5: 1,732,343 km (0.111 R)
• M6: 2,572,485 km (0.055 R)
• M7: 3,132,430 km (0.094 R)
• M8: 3,471,119 km (0.059 R)
• M9: 3,881,616 km (0.111 R)
• M10: 4,929,998 km (0.036 R)
• M11: 5,510,438 km (0.11 R)
• M12: 6,421,339 km (0.061 R)
• M13: 6,808,049 km (0.114 R)
• M14: 7,162,297 km (0.119 R)
• M15: 7,578,479 km (0.119 R)
• M16: 8,731,429 km (0.088 R)
• M17: 10,118,650 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954.6

Radius: 7.5

Gravity: 16.97 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 5.48 AU - 6.76 AU

Year: 9932 Days

Day: 20.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,903,415 km

• M1: 95,144 km (0.028 R)
• M2: 336,595 km (0.11 R)
• M3: 732,132 km (0.071 R)
• M4: 1,017,565 km (0.098 R)
• M5: 1,431,502 km (0.094 R)
• M6: 1,724,714 km (0.102 R)
• M7: 2,202,829 km (0.092 R)
• M8: 2,898,908 km (0.094 R)
• M9: 3,372,235 km (0.108 R)
• M10: 3,733,364 km (0.106 R)
• M11: 4,941,517 km (0.099 R)
• M12: 7,109,340 km (0.057 R)
• M13: 8,058,987 km (0.078 R)
• M14: 8,470,979 km (0.066 R)
• M15: 9,791,480 km (0.065 R)
• M16: 10,799,470 km (0.076 R)
• M17: 11,300,324 km (0.111 R)
• M18: 11,585,308 km (0.108 R)
• M19: 12,348,556 km (0.087 R)
• M20: 16,896,032 km (0.111 R)
• M21: 18,420,435 km (0.092 R)
• M22: 28,683,148 km (0.068 R)
• M23: 30,185,709 km (0.077 R)
• M24: 33,933,734 km (0.081 R)
• M25: 35,370,173 km (0.119 R)
• M26: 38,749,588 km (0.092 R)
• M27: 43,164,670 km (0.104 R)
• M28: 49,102,659 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 654.7

Radius: 5.6

Gravity: 20.88 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.88 AU - 9.72 AU

Year: 14291 Days

Day: 20.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,903,415 km

• M1: 71,059 km (0.117 R)
• M2: 288,125 km (0.11 R)
• M3: 1,038,658 km (0.082 R)
• M4: 1,454,690 km (0.09 R)
• M5: 2,613,026 km (0.086 R)
• M6: 2,861,209 km (0.109 R)
• M7: 3,051,497 km (0.052 R)
• M8: 3,378,818 km (0.111 R)
• M9: 4,193,378 km (0.102 R)
• M10: 4,377,084 km (0.084 R)
• M11: 4,662,816 km (0.11 R)
• M12: 6,728,164 km (0.099 R)
• M13: 7,023,171 km (0.1 R)
• M14: 8,147,549 km (0.109 R)
• M15: 10,976,445 km (0.038 R)
• M16: 11,926,092 km (0.107 R)
• M17: 14,123,685 km (0.116 R)
• M18: 15,462,436 km (0.097 R)
• M19: 17,586,277 km (0.058 R)
• M20: 18,308,236 km (0.086 R)
• M21: 21,940,473 km (0.052 R)
• M22: 23,634,220 km (0.109 R)
• M23: 28,792,803 km (0.066 R)
• M24: 32,341,115 km (0.084 R)
• M25: 37,336,188 km (0.077 R)
• M26: 42,821,942 km (0.083 R)
• M27: 49,134,822 km (0.078 R)
• M28: 56,730,205 km (0.111 R)
• M29: 59,545,188 km (0.098 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 20,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit