🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.86 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.49 AU - 1.93 AU

Year: 801 Days

Day: 46.5 Hours

Environment

Temp: -34 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.37 AU - 2.47 AU

Year: 1348 Days

Day: 44.7 Hours

Environment

Temp: -72 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,178,398 km

• M1: 45,029 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.2

Radius: 10.9

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.14 AU - 10.24 AU

Year: 8395 Days

Day: 9.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,178,398 km

• M1: 245,789 km (0.079 R)
• M2: 1,078,301 km (0.06 R)
• M3: 1,548,787 km (0.105 R)
• M4: 1,888,374 km (0.064 R)
• M5: 3,583,767 km (0.081 R)
• M6: 4,529,375 km (0.102 R)
• M7: 5,432,647 km (0.089 R)
• M8: 6,526,806 km (0.043 R)
• M9: 7,226,176 km (0.099 R)
• M10: 8,279,793 km (0.112 R)
• M11: 8,820,440 km (0.074 R)
• M12: 9,578,004 km (0.08 R)
• M13: 10,123,587 km (0.059 R)
• M14: 11,007,561 km (0.102 R)
• M15: 11,440,946 km (0.112 R)
• M16: 12,226,784 km (0.053 R)
• M17: 13,168,502 km (0.073 R)
• M18: 14,670,914 km (0.094 R)
• M19: 15,734,106 km (0.099 R)
• M20: 16,847,862 km (0.073 R)
• M21: 22,345,135 km (0.113 R)
• M22: 24,936,319 km (0.044 R)
• M23: 27,523,016 km (0.077 R)
• M24: 30,921,431 km (0.071 R)
• M25: 38,291,071 km (0.088 R)
• M26: 44,530,349 km (0.115 R)
• M27: 47,176,586 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.7

Radius: 10.2

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 8.94 AU - 10.06 AU

Year: 10487 Days

Day: 13.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,178,398 km

• M1: 126,859 km (0.054 R)
• M2: 519,853 km (0.052 R)
• M3: 1,985,313 km (0.111 R)
• M4: 2,791,795 km (0.109 R)
• M5: 3,222,488 km (0.062 R)
• M6: 3,993,216 km (0.085 R)
• M7: 4,392,941 km (0.115 R)
• M8: 5,206,604 km (0.112 R)
• M9: 6,533,537 km (0.113 R)
• M10: 7,255,198 km (0.108 R)
• M11: 7,721,644 km (0.117 R)
• M12: 9,589,523 km (0.105 R)
• M13: 9,944,967 km (0.046 R)
• M14: 10,574,774 km (0.108 R)
• M15: 13,871,612 km (0.078 R)
• M16: 15,062,262 km (0.057 R)
• M17: 15,963,738 km (0.106 R)
• M18: 24,797,193 km (0.092 R)
• M19: 25,179,117 km (0.083 R)
• M20: 29,537,352 km (0.118 R)
• M21: 30,291,474 km (0.117 R)
• M22: 30,618,495 km (0.115 R)
• M23: 33,786,081 km (0.1 R)
• M24: 34,137,935 km (0.044 R)
• M25: 42,103,872 km (0.075 R)
• M26: 42,921,574 km (0.037 R)
• M27: 43,611,070 km (0.097 R)
• M28: 45,438,259 km (0.051 R)
• M29: 46,298,596 km (0.032 R)
• M30: 49,244,926 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.1

Radius: 4.8

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 10.76 AU - 16.58 AU

Year: 18102 Days

Day: 20.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 85.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,178,398 km

• M1: 59,989 km (0.106 R)
• M2: 271,819 km (0.114 R)
• M3: 634,145 km (0.061 R)
• M4: 1,436,738 km (0.087 R)
• M5: 2,262,069 km (0.083 R)
• M6: 3,065,709 km (0.065 R)
• M7: 3,553,398 km (0.082 R)
• M8: 4,185,748 km (0.084 R)
• M9: 4,428,845 km (0.041 R)
• M10: 5,788,690 km (0.085 R)
• M11: 7,127,890 km (0.108 R)
• M12: 9,546,289 km (0.098 R)
• M13: 12,863,023 km (0.087 R)
• M14: 26,009,535 km (0.101 R)
• M15: 27,163,832 km (0.079 R)
• M16: 28,524,424 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.6

Radius: 8

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 13.72 AU - 18.46 AU

Year: 23116 Days

Day: 20 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,178,398 km

• M1: 105,915 km (0.078 R)
• M2: 363,224 km (0.074 R)
• M3: 746,344 km (0.078 R)
• M4: 1,037,012 km (0.089 R)
• M5: 2,271,793 km (0.116 R)
• M6: 2,559,620 km (0.051 R)
• M7: 2,896,963 km (0.043 R)
• M8: 3,346,205 km (0.105 R)
• M9: 5,504,454 km (0.056 R)
• M10: 6,895,564 km (0.109 R)
• M11: 8,559,242 km (0.095 R)
• M12: 9,826,336 km (0.053 R)
• M13: 12,119,821 km (0.115 R)
• M14: 15,130,478 km (0.119 R)
• M15: 15,755,498 km (0.099 R)
• M16: 18,605,786 km (0.105 R)
• M17: 21,004,887 km (0.083 R)
• M18: 23,811,044 km (0.108 R)
• M19: 25,194,974 km (0.105 R)
• M20: 30,646,769 km (0.074 R)
• M21: 31,394,908 km (0.109 R)
• M22: 31,773,391 km (0.055 R)
• M23: 32,027,408 km (0.076 R)
• M24: 37,681,460 km (0.098 R)
• M25: 41,042,924 km (0.089 R)
• M26: 53,385,347 km (0.069 R)
• M27: 56,490,400 km (0.037 R)
• M28: 64,064,540 km (0.114 R)
• M29: 64,877,605 km (0.085 R)
• M30: 70,331,345 km (0.09 R)
• M31: 74,281,028 km (0.115 R)

Kuiper Belt

Range: 30.6 - 56.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 12,729 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit