🌌 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: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.55 AU - 0.67 AU

Year: 313 Days

Day: 41.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,827,940 km

• M1: 39,195 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.6

Radius: 10.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.78 AU - 1.1 AU

Year: 598 Days

Day: 12.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,827,940 km

• M1: 128,056 km (0.089 R)
• M2: 483,650 km (0.11 R)
• M3: 862,881 km (0.094 R)
• M4: 1,413,101 km (0.111 R)
• M5: 1,792,332 km (0.051 R)
• M6: 2,284,509 km (0.112 R)
• M7: 2,973,108 km (0.092 R)
• M8: 3,456,608 km (0.036 R)
• M9: 3,938,613 km (0.111 R)
• M10: 4,465,048 km (0.096 R)
• M11: 4,913,392 km (0.069 R)
• M12: 5,326,133 km (0.077 R)
• M13: 5,693,246 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.2

Radius: 14.5

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.93 AU - 1.53 AU

Year: 895 Days

Day: 12.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,827,940 km

• M1: 180,265 km (0.116 R)
• M2: 670,049 km (0.069 R)
• M3: 1,509,443 km (0.106 R)
• M4: 3,338,576 km (0.114 R)
• M5: 4,861,931 km (0.06 R)
• M6: 5,736,630 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.5

Radius: 14.7

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.53 AU - 1.75 AU

Year: 1378 Days

Day: 6.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,827,940 km

• M1: 182,809 km (0.066 R)
• M2: 657,483 km (0.096 R)
• M3: 1,253,481 km (0.058 R)
• M4: 1,715,738 km (0.042 R)
• M5: 2,780,725 km (0.103 R)
• M6: 3,560,729 km (0.082 R)
• M7: 4,250,823 km (0.096 R)
• M8: 5,121,034 km (0.083 R)
• M9: 6,128,426 km (0.11 R)
• M10: 7,599,273 km (0.088 R)
• M11: 8,352,947 km (0.04 R)
• M12: 8,936,977 km (0.113 R)
• M13: 9,519,810 km (0.108 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.4

Radius: 3.8

Gravity: 51.83 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.17 AU - 6.73 AU

Year: 10746 Days

Day: 18 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,827,940 km

• M1: 49,517 km (0.104 R)
• M2: 177,423 km (0.114 R)
• M3: 467,493 km (0.093 R)
• M4: 605,871 km (0.104 R)
• M5: 762,650 km (0.089 R)
• M6: 1,529,937 km (0.111 R)
• M7: 1,856,659 km (0.073 R)
• M8: 1,975,290 km (0.088 R)
• M9: 2,864,350 km (0.114 R)
• M10: 3,719,153 km (0.073 R)
• M11: 4,425,255 km (0.094 R)
• M12: 5,950,704 km (0.071 R)
• M13: 7,926,892 km (0.059 R)
• M14: 9,281,650 km (0.097 R)
• M15: 9,680,927 km (0.116 R)
• M16: 10,513,738 km (0.05 R)
• M17: 11,113,177 km (0.098 R)
• M18: 11,677,610 km (0.099 R)
• M19: 11,966,932 km (0.071 R)
• M20: 12,802,436 km (0.062 R)
• M21: 17,493,825 km (0.056 R)
• M22: 18,646,327 km (0.101 R)
• M23: 21,101,528 km (0.062 R)
• M24: 21,877,941 km (0.105 R)
• M25: 24,227,974 km (0.108 R)
• M26: 27,243,268 km (0.098 R)
• M27: 28,474,608 km (0.109 R)
• M28: 29,103,967 km (0.077 R)
• M29: 31,158,095 km (0.12 R)
• M30: 35,552,233 km (0.12 R)
• M31: 41,002,532 km (0.086 R)
• M32: 45,829,607 km (0.044 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 843.5

Radius: 6.1

Gravity: 22.67 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.68 AU - 9.3 AU

Year: 13447 Days

Day: 24.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,827,940 km

• M1: 75,846 km (0.102 R)
• M2: 274,512 km (0.056 R)
• M3: 525,238 km (0.103 R)
• M4: 1,029,383 km (0.082 R)
• M5: 1,320,052 km (0.081 R)
• M6: 2,011,343 km (0.08 R)
• M7: 2,426,178 km (0.097 R)
• M8: 3,812,801 km (0.103 R)
• M9: 4,167,647 km (0.116 R)
• M10: 4,416,129 km (0.1 R)
• M11: 6,042,707 km (0.046 R)
• M12: 6,280,717 km (0.032 R)
• M13: 7,163,943 km (0.113 R)
• M14: 9,226,000 km (0.026 R)
• M15: 9,435,886 km (0.103 R)
• M16: 11,351,486 km (0.116 R)
• M17: 11,775,746 km (0.114 R)
• M18: 13,046,430 km (0.099 R)
• M19: 15,707,926 km (0.104 R)
• M20: 16,158,814 km (0.042 R)
• M21: 16,387,400 km (0.04 R)
• M22: 16,695,721 km (0.078 R)
• M23: 19,906,989 km (0.114 R)
• M24: 24,797,792 km (0.094 R)
• M25: 25,511,822 km (0.084 R)
• M26: 26,661,482 km (0.111 R)
• M27: 29,402,115 km (0.113 R)
• M28: 29,743,049 km (0.094 R)
• M29: 31,725,370 km (0.106 R)
• M30: 32,084,255 km (0.111 R)
• M31: 34,545,290 km (0.118 R)
• M32: 35,052,277 km (0.098 R)
• M33: 36,471,811 km (0.038 R)
• M34: 43,409,263 km (0.055 R)
• M35: 46,876,343 km (0.077 R)
• M36: 48,439,791 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 645.7

Radius: 7.1

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.83 AU - 10.27 AU

Year: 20901 Days

Day: 16.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 76,827,940 km

• M1: 91,255 km (0.118 R)
• M2: 332,107 km (0.025 R)
• M3: 986,000 km (0.088 R)
• M4: 2,038,421 km (0.113 R)
• M5: 2,602,853 km (0.108 R)
• M6: 3,051,497 km (0.057 R)
• M7: 3,378,518 km (0.092 R)
• M8: 3,668,589 km (0.11 R)
• M9: 3,975,414 km (0.095 R)
• M10: 4,999,561 km (0.118 R)
• M11: 6,021,015 km (0.091 R)
• M12: 6,275,182 km (0.083 R)
• M13: 6,536,529 km (0.099 R)
• M14: 7,904,003 km (0.101 R)
• M15: 8,681,613 km (0.07 R)
• M16: 10,388,076 km (0.059 R)
• M17: 11,642,903 km (0.105 R)
• M18: 12,855,843 km (0.093 R)
• M19: 13,709,897 km (0.113 R)
• M20: 14,753,492 km (0.051 R)
• M21: 16,090,597 km (0.097 R)
• M22: 23,899,756 km (0.073 R)
• M23: 25,738,912 km (0.066 R)
• M24: 28,374,677 km (0.084 R)
• M25: 30,808,335 km (0.11 R)
• M26: 33,775,160 km (0.093 R)
• M27: 36,086,597 km (0.037 R)
• M28: 41,022,130 km (0.086 R)
• M29: 42,245,541 km (0.106 R)
• M30: 45,734,762 km (0.108 R)
• M31: 52,206,067 km (0.088 R)
• M32: 54,187,341 km (0.113 R)
• M33: 55,104,226 km (0.114 R)
• M34: 56,592,725 km (0.043 R)
• M35: 63,623,825 km (0.091 R)
• M36: 64,030,581 km (0.086 R)
• M37: 70,343,312 km (0.116 R)
• M38: 73,873,822 km (0.099 R)
• M39: 76,139,332 km (0.069 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 15,731 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit