🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.4

Radius: 8.8

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.52 AU - 0.74 AU

Year: 339 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,003,177 km

• M1: 109,805 km (0.096 R)
• M2: 388,057 km (0.105 R)
• M3: 676,182 km (0.105 R)
• M4: 1,060,948 km (0.064 R)
• M5: 1,379,741 km (0.08 R)
• M6: 1,769,144 km (0.107 R)
• M7: 2,075,670 km (0.103 R)
• M8: 2,370,229 km (0.057 R)
• M9: 2,658,354 km (0.114 R)
• M10: 2,969,967 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.3

Radius: 13

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.76 AU - 0.78 AU

Year: 458 Days

Day: 8.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,003,177 km

• M1: 161,715 km (0.032 R)
• M2: 614,099 km (0.104 R)
• M3: 1,098,647 km (0.094 R)
• M4: 1,611,169 km (0.117 R)
• M5: 2,092,725 km (0.081 R)
• M6: 2,630,679 km (0.055 R)
• M7: 3,214,709 km (0.031 R)
• M8: 4,177,371 km (0.082 R)
• M9: 4,793,714 km (0.056 R)
• M10: 5,670,058 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.6

Radius: 12.2

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.8 AU - 2.16 AU

Year: 1890 Days

Day: 10.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,003,177 km

• M1: 151,692 km (0.108 R)
• M2: 612,454 km (0.094 R)
• M3: 1,241,363 km (0.108 R)
• M4: 1,829,432 km (0.09 R)
• M5: 2,811,393 km (0.115 R)
• M6: 3,334,985 km (0.12 R)
• M7: 3,786,920 km (0.108 R)
• M8: 4,188,441 km (0.106 R)
• M9: 4,696,476 km (0.033 R)
• M10: 5,701,474 km (0.09 R)
• M11: 6,303,157 km (0.089 R)
• M12: 6,794,286 km (0.09 R)
• M13: 7,337,626 km (0.034 R)
• M14: 7,826,063 km (0.089 R)
• M15: 9,645,622 km (0.08 R)
• M16: 11,370,934 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.2

Radius: 14.7

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.5 AU - 3.78 AU

Year: 3774 Days

Day: 10.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,003,177 km

• M1: 183,108 km (0.075 R)
• M2: 664,364 km (0.09 R)
• M3: 1,364,632 km (0.11 R)
• M4: 1,846,337 km (0.107 R)
• M5: 2,637,410 km (0.111 R)
• M6: 4,264,138 km (0.1 R)
• M7: 4,722,506 km (0.098 R)
• M8: 5,711,348 km (0.041 R)
• M9: 7,329,548 km (0.108 R)
• M10: 7,955,615 km (0.091 R)
• M11: 10,433,554 km (0.071 R)
• M12: 11,047,653 km (0.09 R)
• M13: 12,156,323 km (0.047 R)
• M14: 13,748,643 km (0.054 R)
• M15: 14,757,680 km (0.094 R)
• M16: 16,217,905 km (0.053 R)
• M17: 18,207,557 km (0.064 R)
• M18: 20,900,618 km (0.099 R)
• M19: 26,820,654 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.2

Radius: 14.6

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.67 AU - 3.75 AU

Year: 4847 Days

Day: 10.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,003,177 km

• M1: 181,911 km (0.083 R)
• M2: 656,435 km (0.086 R)
• M3: 1,212,491 km (0.073 R)
• M4: 1,976,637 km (0.037 R)
• M5: 2,810,046 km (0.077 R)
• M6: 3,693,123 km (0.104 R)
• M7: 4,627,212 km (0.108 R)
• M8: 5,096,650 km (0.105 R)
• M9: 6,733,251 km (0.046 R)
• M10: 7,373,380 km (0.104 R)
• M11: 7,870,942 km (0.064 R)
• M12: 8,620,577 km (0.074 R)
• M13: 9,791,779 km (0.109 R)
• M14: 10,570,735 km (0.046 R)
• M15: 11,158,655 km (0.085 R)
• M16: 11,720,694 km (0.119 R)
• M17: 13,364,326 km (0.077 R)
• M18: 16,922,062 km (0.054 R)
• M19: 20,025,171 km (0.102 R)
• M20: 20,856,786 km (0.105 R)
• M21: 21,639,182 km (0.099 R)
• M22: 23,642,597 km (0.068 R)
• M23: 26,010,582 km (0.065 R)
• M24: 27,000,770 km (0.049 R)
• M25: 29,232,322 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.6

Radius: 4.6

Gravity: 17.99 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.77 AU - 6.31 AU

Year: 10068 Days

Day: 22.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 86,003,177 km

• M1: 57,296 km (0.106 R)
• M2: 423,212 km (0.054 R)
• M3: 1,072,018 km (0.088 R)
• M4: 1,825,543 km (0.1 R)
• M5: 2,027,051 km (0.071 R)
• M6: 4,455,922 km (0.08 R)
• M7: 4,707,546 km (0.08 R)
• M8: 4,851,309 km (0.115 R)
• M9: 7,338,972 km (0.068 R)
• M10: 7,769,365 km (0.12 R)
• M11: 7,930,034 km (0.05 R)
• M12: 8,680,716 km (0.047 R)
• M13: 9,846,981 km (0.105 R)
• M14: 10,565,350 km (0.026 R)
• M15: 12,213,619 km (0.093 R)
• M16: 12,431,134 km (0.115 R)
• M17: 15,880,562 km (0.073 R)
• M18: 16,401,462 km (0.07 R)
• M19: 17,408,704 km (0.063 R)
• M20: 18,456,488 km (0.118 R)
• M21: 19,324,455 km (0.105 R)
• M22: 20,295,195 km (0.071 R)
• M23: 25,286,528 km (0.097 R)
• M24: 27,548,597 km (0.06 R)
• M25: 28,205,332 km (0.1 R)
• M26: 35,137,697 km (0.1 R)
• M27: 37,488,179 km (0.078 R)
• M28: 37,947,445 km (0.108 R)
• M29: 38,294,362 km (0.111 R)
• M30: 38,760,060 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 43.1

Radius: 3

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.58 AU - 7.72 AU

Year: 11631 Days

Day: 15.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,003,177 km

• M1: 37,998 km (0.048 R)
• M2: 162,164 km (0.093 R)
• M3: 303,534 km (0.093 R)
• M4: 424,559 km (0.074 R)
• M5: 658,231 km (0.053 R)
• M6: 807,529 km (0.118 R)
• M7: 901,626 km (0.09 R)
• M8: 1,229,096 km (0.12 R)
• M9: 1,734,288 km (0.036 R)
• M10: 1,879,548 km (0.119 R)
• M11: 2,453,405 km (0.085 R)
• M12: 5,250,287 km (0.107 R)
• M13: 5,817,562 km (0.082 R)
• M14: 9,059,797 km (0.087 R)
• M15: 10,613,071 km (0.077 R)
• M16: 12,467,935 km (0.103 R)
• M17: 12,917,776 km (0.082 R)
• M18: 13,378,238 km (0.096 R)
• M19: 18,542,955 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.1

Radius: 3.6

Gravity: 26.78 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.91 AU - 9.35 AU

Year: 17195 Days

Day: 24 Hours

Environment

Temp: -228 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 86,003,177 km

• M1: 44,879 km (0.104 R)
• M2: 201,658 km (0.057 R)
• M3: 314,006 km (0.098 R)
• M4: 432,637 km (0.026 R)
• M5: 597,045 km (0.069 R)
• M6: 737,966 km (0.103 R)
• M7: 1,030,430 km (0.112 R)
• M8: 1,790,537 km (0.072 R)
• M9: 2,160,941 km (0.058 R)
• M10: 2,394,464 km (0.103 R)
• M11: 3,739,498 km (0.048 R)
• M12: 4,939,422 km (0.101 R)
• M13: 5,072,116 km (0.09 R)
• M14: 6,977,693 km (0.091 R)
• M15: 9,772,631 km (0.073 R)
• M16: 11,129,334 km (0.099 R)
• M17: 12,240,995 km (0.068 R)
• M18: 13,553,268 km (0.109 R)
• M19: 20,670,835 km (0.112 R)
• M20: 21,894,097 km (0.106 R)
• M21: 27,373,867 km (0.116 R)
• M22: 28,314,987 km (0.081 R)
• M23: 32,064,957 km (0.111 R)
• M24: 32,526,766 km (0.104 R)
• M25: 33,345,665 km (0.11 R)
• M26: 35,268,745 km (0.103 R)
• M27: 37,264,381 km (0.091 R)
• M28: 41,206,733 km (0.106 R)
• M29: 49,445,836 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 900

Radius: 6.8

Gravity: 19.46 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.72 AU - 10.98 AU

Year: 20967 Days

Day: 17.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,003,177 km

• M1: 611,107 km (0.113 R)
• M2: 1,379,292 km (0.043 R)
• M3: 1,775,727 km (0.088 R)
• M4: 2,073,576 km (0.113 R)
• M5: 2,847,446 km (0.089 R)
• M6: 5,379,689 km (0.036 R)
• M7: 5,877,102 km (0.069 R)
• M8: 6,587,542 km (0.099 R)
• M9: 7,011,503 km (0.076 R)
• M10: 11,548,956 km (0.047 R)
• M11: 19,016,582 km (0.086 R)
• M12: 29,807,974 km (0.098 R)
• M13: 30,190,645 km (0.087 R)
• M14: 31,754,392 km (0.092 R)
• M15: 35,468,458 km (0.071 R)
• M16: 39,156,644 km (0.075 R)
• M17: 45,745,234 km (0.116 R)
• M18: 47,284,297 km (0.115 R)
• M19: 61,474,851 km (0.049 R)
• M20: 62,094,935 km (0.066 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 18,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit