🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.6

Radius: 12.5

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.58 AU - 0.78 AU

Year: 387 Days

Day: 12.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 48,944,999 km

• M1: 155,432 km (0.101 R)
• M2: 610,359 km (0.092 R)
• M3: 1,320,201 km (0.083 R)
• M4: 1,809,237 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.1

Radius: 11.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.64 AU - 0.76 AU

Year: 404 Days

Day: 12.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,944,999 km

• M1: 147,055 km (0.097 R)
• M2: 559,496 km (0.099 R)
• M3: 947,403 km (0.104 R)
• M4: 1,373,009 km (0.103 R)
• M5: 1,818,661 km (0.104 R)
• M6: 2,318,019 km (0.099 R)
• M7: 2,878,413 km (0.072 R)
• M8: 3,516,298 km (0.073 R)
• M9: 4,017,451 km (0.082 R)
• M10: 4,731,481 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.2

Radius: 9.9

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.64 AU - 1.02 AU

Year: 522 Days

Day: 14 Hours

Environment

Temp: -177 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,944,999 km

• M1: 124,316 km (0.075 R)
• M2: 437,125 km (0.118 R)
• M3: 798,553 km (0.112 R)
• M4: 1,153,100 km (0.092 R)
• M5: 1,690,306 km (0.113 R)
• M6: 2,039,767 km (0.117 R)
• M7: 2,367,985 km (0.084 R)
• M8: 2,753,648 km (0.081 R)
• M9: 3,379,266 km (0.104 R)
• M10: 3,746,529 km (0.047 R)
• M11: 4,469,236 km (0.115 R)
• M12: 5,179,677 km (0.062 R)
• M13: 6,443,180 km (0.119 R)
• M14: 6,824,804 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.8

Radius: 13.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.33 AU - 1.85 AU

Year: 1384 Days

Day: 12.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,944,999 km

• M1: 169,195 km (0.073 R)
• M2: 901,028 km (0.071 R)
• M3: 1,381,387 km (0.104 R)
• M4: 1,956,142 km (0.072 R)
• M5: 2,483,773 km (0.112 R)
• M6: 2,984,478 km (0.085 R)
• M7: 3,522,581 km (0.053 R)
• M8: 4,576,648 km (0.113 R)
• M9: 5,895,203 km (0.081 R)
• M10: 6,539,073 km (0.091 R)
• M11: 6,961,986 km (0.119 R)
• M12: 8,982,903 km (0.091 R)
• M13: 9,716,232 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920

Radius: 8.5

Gravity: 12.73 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.51 AU - 3.13 AU

Year: 3269 Days

Day: 6.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,944,999 km

• M1: 105,766 km (0.107 R)
• M2: 382,821 km (0.113 R)
• M3: 821,741 km (0.085 R)
• M4: 1,204,861 km (0.057 R)
• M5: 1,611,019 km (0.075 R)
• M6: 1,917,695 km (0.084 R)
• M7: 2,322,657 km (0.088 R)
• M8: 2,650,874 km (0.109 R)
• M9: 3,826,115 km (0.059 R)
• M10: 4,881,229 km (0.082 R)
• M11: 5,694,593 km (0.113 R)
• M12: 6,032,684 km (0.101 R)
• M13: 6,534,435 km (0.107 R)
• M14: 7,421,550 km (0.081 R)
• M15: 12,194,022 km (0.085 R)
• M16: 12,900,273 km (0.065 R)
• M17: 13,288,031 km (0.09 R)
• M18: 21,194,428 km (0.055 R)
• M19: 22,562,052 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.5

Radius: 5.7

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.97 AU - 6.37 AU

Year: 9319 Days

Day: 24.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,944,999 km

• M1: 78,988 km (0.099 R)
• M2: 828,174 km (0.089 R)
• M3: 3,038,782 km (0.096 R)
• M4: 5,254,625 km (0.074 R)
• M5: 7,376,372 km (0.073 R)
• M6: 8,643,316 km (0.075 R)
• M7: 9,894,104 km (0.068 R)
• M8: 11,772,305 km (0.071 R)
• M9: 12,254,310 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.9

Radius: 3.3

Gravity: 24.6 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.05 AU - 7.11 AU

Year: 11651 Days

Day: 15.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 48,944,999 km

• M1: 41,289 km (0.045 R)
• M2: 282,590 km (0.052 R)
• M3: 400,025 km (0.051 R)
• M4: 646,861 km (0.053 R)
• M5: 948,002 km (0.08 R)
• M6: 1,311,525 km (0.1 R)
• M7: 1,498,671 km (0.063 R)
• M8: 2,004,911 km (0.114 R)
• M9: 2,412,415 km (0.084 R)
• M10: 4,715,026 km (0.075 R)
• M11: 5,429,804 km (0.056 R)
• M12: 6,317,219 km (0.103 R)
• M13: 6,669,073 km (0.094 R)
• M14: 7,963,244 km (0.036 R)
• M15: 8,711,982 km (0.086 R)
• M16: 10,639,251 km (0.108 R)
• M17: 11,649,635 km (0.11 R)
• M18: 12,124,459 km (0.077 R)
• M19: 12,448,188 km (0.107 R)
• M20: 14,876,910 km (0.07 R)
• M21: 15,815,487 km (0.112 R)
• M22: 16,462,797 km (0.084 R)
• M23: 16,726,688 km (0.095 R)
• M24: 23,683,288 km (0.085 R)
• M25: 24,529,563 km (0.104 R)
• M26: 24,960,255 km (0.11 R)
• M27: 25,925,311 km (0.093 R)
• M28: 30,527,540 km (0.074 R)
• M29: 32,656,018 km (0.072 R)
• M30: 33,915,782 km (0.115 R)
• M31: 36,086,597 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.4

Radius: 3.9

Gravity: 14.69 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.2 AU - 7.54 AU

Year: 12429 Days

Day: 23.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,944,999 km

• M1: 48,769 km (0.096 R)
• M2: 289,621 km (0.09 R)
• M3: 672,742 km (0.092 R)
• M4: 2,041,263 km (0.105 R)
• M5: 2,256,385 km (0.097 R)
• M6: 2,541,668 km (0.116 R)
• M7: 3,077,079 km (0.105 R)
• M8: 8,822,983 km (0.088 R)
• M9: 10,081,101 km (0.063 R)
• M10: 12,399,868 km (0.055 R)
• M11: 15,736,350 km (0.09 R)
• M12: 16,054,694 km (0.088 R)
• M13: 21,438,123 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348.7

Radius: 8

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.51 AU - 8.69 AU

Year: 14462 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,944,999 km

• M1: 99,931 km (0.093 R)
• M2: 709,393 km (0.057 R)
• M3: 1,392,158 km (0.059 R)
• M4: 1,730,249 km (0.12 R)
• M5: 2,303,358 km (0.077 R)
• M6: 2,974,754 km (0.111 R)
• M7: 3,796,495 km (0.086 R)
• M8: 4,491,526 km (0.109 R)
• M9: 5,637,596 km (0.081 R)
• M10: 7,919,861 km (0.094 R)
• M11: 10,969,862 km (0.109 R)
• M12: 12,784,335 km (0.101 R)
• M13: 14,142,384 km (0.106 R)
• M14: 20,623,862 km (0.073 R)
• M15: 22,225,756 km (0.119 R)
• M16: 23,012,790 km (0.098 R)
• M17: 37,887,456 km (0.11 R)
• M18: 46,922,120 km (0.094 R)
• M19: 48,361,252 km (0.118 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: 490 - 16,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit