🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.42 AU - 0.64 AU

Year: 249 Days

Day: 28.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.6

Radius: 9.9

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.58 AU - 0.84 AU

Year: 386 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,154,275 km

• M1: 123,568 km (0.112 R)
• M2: 457,620 km (0.111 R)
• M3: 893,997 km (0.104 R)
• M4: 1,300,903 km (0.103 R)
• M5: 2,008,052 km (0.103 R)
• M6: 2,344,947 km (0.058 R)
• M7: 3,761,190 km (0.098 R)
• M8: 4,224,045 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.3

Radius: 11.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.6 AU - 0.92 AU

Year: 428 Days

Day: 7.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,154,275 km

• M1: 146,756 km (0.04 R)
• M2: 667,655 km (0.058 R)
• M3: 1,087,277 km (0.104 R)
• M4: 1,583,793 km (0.067 R)
• M5: 2,026,752 km (0.059 R)
• M6: 2,579,366 km (0.104 R)
• M7: 3,035,640 km (0.078 R)
• M8: 3,423,846 km (0.098 R)
• M9: 3,869,199 km (0.119 R)
• M10: 4,470,284 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.5

Radius: 11.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.97 AU - 1.17 AU

Year: 715 Days

Day: 10.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,154,275 km

• M1: 145,559 km (0.114 R)
• M2: 750,233 km (0.066 R)
• M3: 1,163,871 km (0.095 R)
• M4: 1,546,543 km (0.088 R)
• M5: 2,730,760 km (0.09 R)
• M6: 3,931,881 km (0.091 R)
• M7: 4,507,234 km (0.083 R)
• M8: 6,213,847 km (0.119 R)
• M9: 6,953,758 km (0.079 R)
• M10: 7,797,340 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407

Radius: 11.8

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.28 AU - 2.46 AU

Year: 2356 Days

Day: 13.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,154,275 km

• M1: 147,204 km (0.112 R)
• M2: 521,947 km (0.107 R)
• M3: 1,049,878 km (0.107 R)
• M4: 1,470,248 km (0.095 R)
• M5: 1,905,129 km (0.028 R)
• M6: 2,400,447 km (0.083 R)
• M7: 3,147,988 km (0.119 R)
• M8: 4,026,427 km (0.058 R)
• M9: 5,390,909 km (0.099 R)
• M10: 6,142,489 km (0.081 R)
• M11: 7,941,403 km (0.063 R)
• M12: 8,820,141 km (0.094 R)
• M13: 10,627,882 km (0.068 R)
• M14: 11,885,850 km (0.12 R)
• M15: 12,392,239 km (0.084 R)
• M16: 14,475,389 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.2

Radius: 3.3

Gravity: 90.74 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.82 AU - 10.8 AU

Year: 18342 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 81,154,275 km

• M1: 41,289 km (0.04 R)
• M2: 278,252 km (0.088 R)
• M3: 385,963 km (0.087 R)
• M4: 538,104 km (0.115 R)
• M5: 916,586 km (0.088 R)
• M6: 1,263,354 km (0.108 R)
• M7: 1,434,045 km (0.12 R)
• M8: 1,728,005 km (0.115 R)
• M9: 2,649,378 km (0.099 R)
• M10: 3,548,611 km (0.075 R)
• M11: 3,920,811 km (0.112 R)
• M12: 4,050,512 km (0.08 R)
• M13: 4,387,257 km (0.077 R)
• M14: 4,706,050 km (0.107 R)
• M15: 5,154,843 km (0.089 R)
• M16: 5,550,081 km (0.104 R)
• M17: 6,356,114 km (0.054 R)
• M18: 6,535,183 km (0.104 R)
• M19: 6,717,692 km (0.106 R)
• M20: 7,581,321 km (0.094 R)
• M21: 7,732,116 km (0.096 R)
• M22: 8,844,376 km (0.072 R)
• M23: 9,011,477 km (0.034 R)
• M24: 9,525,644 km (0.092 R)
• M25: 10,119,548 km (0.083 R)
• M26: 10,800,817 km (0.052 R)
• M27: 13,027,581 km (0.11 R)
• M28: 14,439,037 km (0.048 R)
• M29: 17,127,161 km (0.114 R)
• M30: 18,725,165 km (0.095 R)
• M31: 19,093,326 km (0.048 R)
• M32: 22,939,337 km (0.045 R)
• M33: 23,573,483 km (0.111 R)
• M34: 23,680,146 km (0.111 R)
• M35: 27,625,042 km (0.119 R)
• M36: 31,986,119 km (0.109 R)
• M37: 34,260,755 km (0.112 R)
• M38: 35,227,755 km (0.077 R)
• M39: 37,506,430 km (0.06 R)
• M40: 52,720,982 km (0.079 R)
• M41: 54,008,870 km (0.111 R)
• M42: 54,754,017 km (0.103 R)
• M43: 62,178,709 km (0.065 R)
• M44: 72,705,612 km (0.112 R)
• M45: 77,087,484 km (0.118 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: 356 - 16,170 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit