🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.56 AU - 0.66 AU

Year: 308 Days

Day: 31.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.3

Radius: 9.8

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.68 AU - 0.96 AU

Year: 479 Days

Day: 12 Hours

Environment

Temp: -151 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,067,891 km

• M1: 122,521 km (0.048 R)
• M2: 535,560 km (0.094 R)
• M3: 1,003,054 km (0.086 R)
• M4: 1,422,526 km (0.085 R)
• M5: 1,748,201 km (0.094 R)
• M6: 2,495,592 km (0.098 R)
• M7: 2,932,118 km (0.114 R)
• M8: 3,515,400 km (0.065 R)
• M9: 4,613,598 km (0.089 R)
• M10: 5,005,694 km (0.071 R)
• M11: 5,720,174 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.7

Radius: 9.2

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.9 AU - 1.1 AU

Year: 646 Days

Day: 8.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,067,891 km

• M1: 115,340 km (0.076 R)
• M2: 441,463 km (0.106 R)
• M3: 747,690 km (0.115 R)
• M4: 1,287,738 km (0.114 R)
• M5: 1,578,557 km (0.097 R)
• M6: 2,176,948 km (0.093 R)
• M7: 2,475,097 km (0.049 R)
• M8: 3,154,869 km (0.106 R)
• M9: 4,985,947 km (0.096 R)
• M10: 6,371,523 km (0.047 R)
• M11: 7,097,671 km (0.116 R)
• M12: 7,389,536 km (0.027 R)
• M13: 7,759,791 km (0.063 R)
• M14: 8,289,068 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.6

Radius: 10.7

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.83 AU - 1.19 AU

Year: 655 Days

Day: 13.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,067,891 km

• M1: 133,292 km (0.119 R)
• M2: 539,749 km (0.067 R)
• M3: 1,026,690 km (0.116 R)
• M4: 1,386,024 km (0.09 R)
• M5: 1,814,772 km (0.106 R)
• M6: 2,248,306 km (0.087 R)
• M7: 2,595,373 km (0.051 R)
• M8: 3,184,041 km (0.089 R)
• M9: 3,913,480 km (0.094 R)
• M10: 4,508,730 km (0.109 R)
• M11: 5,668,712 km (0.107 R)
• M12: 6,281,166 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.2

Radius: 8.6

Gravity: 13.36 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.18 AU - 2.52 AU

Year: 2326 Days

Day: 8 Hours

Environment

Temp: -195 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,067,891 km

• M1: 106,962 km (0.104 R)
• M2: 499,208 km (0.102 R)
• M3: 812,915 km (0.095 R)
• M4: 1,081,593 km (0.034 R)
• M5: 1,584,541 km (0.107 R)
• M6: 2,051,884 km (0.075 R)
• M7: 2,548,699 km (0.093 R)
• M8: 4,207,590 km (0.083 R)
• M9: 5,524,350 km (0.064 R)
• M10: 6,290,890 km (0.088 R)
• M11: 7,681,252 km (0.1 R)
• M12: 8,431,635 km (0.058 R)
• M13: 8,876,838 km (0.11 R)
• M14: 9,301,696 km (0.038 R)
• M15: 9,964,415 km (0.066 R)
• M16: 10,776,881 km (0.119 R)
• M17: 11,138,309 km (0.103 R)
• M18: 11,549,404 km (0.111 R)
• M19: 16,339,827 km (0.071 R)
• M20: 18,762,715 km (0.09 R)
• M21: 19,169,172 km (0.111 R)
• M22: 20,423,700 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 11.7

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.4 AU - 3.32 AU

Year: 3123 Days

Day: 5.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,067,891 km

• M1: 145,559 km (0.104 R)
• M2: 555,906 km (0.101 R)
• M3: 928,853 km (0.094 R)
• M4: 1,422,676 km (0.11 R)
• M5: 1,857,706 km (0.115 R)
• M6: 2,448,768 km (0.091 R)
• M7: 2,834,281 km (0.109 R)
• M8: 3,394,974 km (0.113 R)
• M9: 5,391,058 km (0.077 R)
• M10: 6,572,283 km (0.1 R)
• M11: 8,416,825 km (0.106 R)
• M12: 9,475,828 km (0.102 R)
• M13: 10,145,428 km (0.058 R)
• M14: 10,547,248 km (0.069 R)
• M15: 12,845,371 km (0.109 R)
• M16: 14,338,058 km (0.095 R)
• M17: 16,189,033 km (0.077 R)
• M18: 16,890,946 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172

Radius: 6

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 8.95 AU - 9.57 AU

Year: 18194 Days

Day: 16.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,067,891 km

• M1: 75,098 km (0.087 R)
• M2: 273,016 km (0.097 R)
• M3: 1,428,061 km (0.11 R)
• M4: 2,121,747 km (0.072 R)
• M5: 2,723,130 km (0.057 R)
• M6: 3,455,860 km (0.104 R)
• M7: 3,651,834 km (0.095 R)
• M8: 6,849,189 km (0.053 R)
• M9: 7,318,029 km (0.112 R)
• M10: 11,271,601 km (0.08 R)
• M11: 11,540,728 km (0.099 R)
• M12: 14,347,184 km (0.103 R)
• M13: 17,434,285 km (0.04 R)
• M14: 18,529,641 km (0.107 R)
• M15: 21,922,820 km (0.096 R)
• M16: 22,426,965 km (0.091 R)
• M17: 24,701,451 km (0.112 R)
• M18: 25,155,780 km (0.114 R)
• M19: 25,523,192 km (0.086 R)
• M20: 26,081,192 km (0.085 R)
• M21: 33,424,353 km (0.109 R)
• M22: 39,881,745 km (0.032 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 12,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit