🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486

Radius: 11.2

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.52 AU - 0.86 AU

Year: 376 Days

Day: 5.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,579,843 km

• M1: 139,425 km (0.112 R)
• M2: 528,080 km (0.077 R)
• M3: 927,208 km (0.098 R)
• M4: 1,540,559 km (0.071 R)
• M5: 2,027,201 km (0.109 R)
• M6: 2,524,614 km (0.075 R)
• M7: 2,900,553 km (0.119 R)
• M8: 3,260,336 km (0.078 R)
• M9: 3,650,038 km (0.108 R)
• M10: 4,021,191 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.6

Radius: 8.5

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.71 AU - 1.99 AU

Year: 1651 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,579,843 km

• M1: 120,277 km (0.093 R)
• M2: 1,154,148 km (0.106 R)
• M3: 2,264,014 km (0.049 R)
• M4: 3,077,378 km (0.114 R)
• M5: 4,279,097 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.2

Radius: 10.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.55 AU - 2.17 AU

Year: 1664 Days

Day: 7.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,579,843 km

• M1: 129,402 km (0.108 R)
• M2: 541,843 km (0.11 R)
• M3: 1,628,074 km (0.11 R)
• M4: 2,726,571 km (0.045 R)
• M5: 3,196,607 km (0.114 R)
• M6: 3,528,415 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.8

Radius: 14.6

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.8 AU - 3.52 AU

Year: 3685 Days

Day: 11.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,579,843 km

• M1: 181,612 km (0.082 R)
• M2: 699,669 km (0.078 R)
• M3: 1,364,781 km (0.109 R)
• M4: 2,256,385 km (0.089 R)
• M5: 3,146,642 km (0.071 R)
• M6: 4,048,118 km (0.089 R)
• M7: 4,571,711 km (0.119 R)
• M8: 5,972,695 km (0.104 R)
• M9: 7,230,514 km (0.078 R)
• M10: 8,553,258 km (0.055 R)
• M11: 9,723,114 km (0.088 R)
• M12: 10,709,412 km (0.115 R)
• M13: 14,071,325 km (0.108 R)
• M14: 16,072,197 km (0.111 R)
• M15: 17,281,396 km (0.089 R)
• M16: 18,491,494 km (0.112 R)
• M17: 21,861,934 km (0.099 R)
• M18: 22,327,033 km (0.071 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.7

Radius: 3

Gravity: 19.52 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 6.41 AU - 7.89 AU

Year: 12542 Days

Day: 16.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,579,843 km

• M1: 37,399 km (0.094 R)
• M2: 134,339 km (0.078 R)
• M3: 268,678 km (0.089 R)
• M4: 440,267 km (0.064 R)
• M5: 610,359 km (0.102 R)
• M6: 1,185,862 km (0.053 R)
• M7: 1,688,062 km (0.116 R)
• M8: 2,152,265 km (0.082 R)
• M9: 2,475,845 km (0.084 R)
• M10: 3,348,300 km (0.118 R)
• M11: 8,348,010 km (0.04 R)
• M12: 10,774,487 km (0.083 R)
• M13: 13,024,739 km (0.06 R)
• M14: 13,520,656 km (0.115 R)
• M15: 13,971,843 km (0.095 R)
• M16: 17,815,311 km (0.066 R)
• M17: 18,632,564 km (0.085 R)
• M18: 22,937,094 km (0.072 R)
• M19: 23,416,854 km (0.063 R)
• M20: 24,812,752 km (0.086 R)
• M21: 24,980,451 km (0.107 R)
• M22: 25,318,243 km (0.089 R)
• M23: 25,830,765 km (0.08 R)
• M24: 28,405,344 km (0.11 R)
• M25: 29,707,295 km (0.064 R)
• M26: 31,438,890 km (0.077 R)
• M27: 32,229,664 km (0.06 R)
• M28: 32,932,475 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.2

Radius: 3.9

Gravity: 18.82 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.66 AU - 8.98 AU

Year: 14346 Days

Day: 20.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,579,843 km

• M1: 49,666 km (0.047 R)
• M2: 300,991 km (0.119 R)
• M3: 539,899 km (0.072 R)
• M4: 709,991 km (0.097 R)
• M5: 964,757 km (0.042 R)
• M6: 1,091,466 km (0.095 R)
• M7: 2,317,570 km (0.08 R)
• M8: 3,209,622 km (0.067 R)
• M9: 5,210,793 km (0.101 R)
• M10: 5,947,263 km (0.074 R)
• M11: 6,942,837 km (0.103 R)
• M12: 10,536,477 km (0.062 R)
• M13: 10,691,161 km (0.07 R)
• M14: 16,972,327 km (0.08 R)
• M15: 20,114,630 km (0.104 R)
• M16: 22,242,511 km (0.09 R)
• M17: 22,412,155 km (0.051 R)
• M18: 23,448,120 km (0.103 R)
• M19: 26,271,331 km (0.055 R)
• M20: 34,586,280 km (0.079 R)
• M21: 34,928,260 km (0.119 R)
• M22: 41,732,420 km (0.115 R)
• M23: 44,765,218 km (0.051 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 18,306 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit