🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.6

Radius: 12.9

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.57 AU - 0.91 AU

Year: 405 Days

Day: 11.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 128.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 47,272,259 km

• M1: 160,369 km (0.057 R)
• M2: 571,314 km (0.109 R)
• M3: 1,336,657 km (0.112 R)
• M4: 1,844,691 km (0.097 R)
• M5: 2,643,544 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733

Radius: 9.8

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.63 AU - 0.95 AU

Year: 446 Days

Day: 14.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,272,259 km

• M1: 121,922 km (0.066 R)
• M2: 914,791 km (0.12 R)
• M3: 1,467,854 km (0.114 R)
• M4: 1,940,883 km (0.066 R)
• M5: 2,484,372 km (0.077 R)
• M6: 3,058,828 km (0.086 R)
• M7: 3,530,360 km (0.115 R)
• M8: 3,836,138 km (0.116 R)
• M9: 4,243,493 km (0.057 R)
• M10: 5,658,988 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.1

Radius: 10.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.6 AU - 2.4 AU

Year: 1798 Days

Day: 7.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,272,259 km

• M1: 126,859 km (0.109 R)
• M2: 556,055 km (0.076 R)
• M3: 888,911 km (0.071 R)
• M4: 1,352,215 km (0.057 R)
• M5: 1,940,434 km (0.065 R)
• M6: 2,598,515 km (0.09 R)
• M7: 3,120,462 km (0.082 R)
• M8: 3,561,028 km (0.09 R)
• M9: 4,745,693 km (0.087 R)
• M10: 5,308,480 km (0.08 R)
• M11: 6,151,614 km (0.069 R)
• M12: 6,693,757 km (0.112 R)
• M13: 7,594,037 km (0.093 R)
• M14: 8,044,775 km (0.047 R)
• M15: 9,187,254 km (0.081 R)
• M16: 11,940,752 km (0.054 R)
• M17: 12,473,620 km (0.116 R)
• M18: 12,942,909 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.7

Radius: 12.5

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.64 AU - 2.6 AU

Year: 1963 Days

Day: 10.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,272,259 km

• M1: 155,432 km (0.073 R)
• M2: 591,660 km (0.106 R)
• M3: 1,337,106 km (0.109 R)
• M4: 2,524,015 km (0.107 R)
• M5: 2,925,985 km (0.03 R)
• M6: 4,201,456 km (0.074 R)
• M7: 4,707,396 km (0.049 R)
• M8: 5,554,719 km (0.092 R)
• M9: 6,501,224 km (0.049 R)
• M10: 7,379,065 km (0.092 R)
• M11: 7,906,696 km (0.069 R)
• M12: 9,539,856 km (0.078 R)
• M13: 10,025,152 km (0.069 R)
• M14: 11,737,000 km (0.113 R)
• M15: 12,254,310 km (0.099 R)
• M16: 12,911,942 km (0.094 R)
• M17: 13,592,911 km (0.039 R)
• M18: 14,750,500 km (0.105 R)
• M19: 15,542,172 km (0.109 R)
• M20: 16,166,443 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.4

Radius: 13.5

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.17 AU - 4.75 AU

Year: 5010 Days

Day: 6.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,272,259 km

• M1: 167,849 km (0.101 R)
• M2: 681,717 km (0.113 R)
• M3: 1,294,770 km (0.073 R)
• M4: 1,982,172 km (0.093 R)
• M5: 2,695,754 km (0.059 R)
• M6: 3,275,595 km (0.113 R)
• M7: 4,185,898 km (0.078 R)
• M8: 4,614,346 km (0.07 R)
• M9: 5,758,770 km (0.116 R)
• M10: 7,696,511 km (0.075 R)
• M11: 9,911,757 km (0.075 R)
• M12: 11,715,308 km (0.115 R)
• M13: 13,420,425 km (0.086 R)
• M14: 15,064,057 km (0.105 R)
• M15: 19,134,016 km (0.112 R)
• M16: 21,281,793 km (0.087 R)
• M17: 22,198,678 km (0.116 R)
• M18: 22,994,838 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.2

Radius: 12

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.41 AU - 5.21 AU

Year: 5689 Days

Day: 11.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,272,259 km

• M1: 152,291 km (0.118 R)
• M2: 1,014,872 km (0.119 R)
• M3: 1,886,728 km (0.097 R)
• M4: 3,097,723 km (0.038 R)
• M5: 4,238,108 km (0.111 R)
• M6: 5,091,414 km (0.027 R)
• M7: 5,803,949 km (0.106 R)
• M8: 7,138,212 km (0.101 R)
• M9: 10,000,169 km (0.077 R)
• M10: 10,905,236 km (0.117 R)
• M11: 15,025,909 km (0.109 R)
• M12: 16,157,318 km (0.093 R)
• M13: 18,833,175 km (0.114 R)
• M14: 19,389,380 km (0.118 R)
• M15: 20,926,199 km (0.045 R)
• M16: 21,522,945 km (0.057 R)
• M17: 22,199,277 km (0.109 R)
• M18: 23,952,265 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.9

Radius: 12.4

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.05 AU - 5.07 AU

Year: 7237 Days

Day: 14.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,272,259 km

• M1: 155,432 km (0.059 R)
• M2: 872,006 km (0.088 R)
• M3: 2,092,276 km (0.094 R)
• M4: 2,971,463 km (0.054 R)
• M5: 3,811,903 km (0.093 R)
• M6: 4,420,318 km (0.057 R)
• M7: 5,151,702 km (0.117 R)
• M8: 7,335,681 km (0.1 R)
• M9: 9,039,751 km (0.065 R)
• M10: 9,571,870 km (0.078 R)
• M11: 10,796,778 km (0.098 R)
• M12: 11,447,229 km (0.116 R)
• M13: 12,552,907 km (0.099 R)
• M14: 17,087,667 km (0.055 R)
• M15: 17,764,897 km (0.082 R)
• M16: 20,202,295 km (0.048 R)
• M17: 21,267,880 km (0.098 R)
• M18: 22,210,796 km (0.088 R)
• M19: 23,428,373 km (0.103 R)
• M20: 27,532,142 km (0.083 R)
• M21: 34,496,671 km (0.086 R)
• M22: 35,469,506 km (0.051 R)
• M23: 36,795,092 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.8

Radius: 13.7

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 4.05 AU - 6.13 AU

Year: 7301 Days

Day: 13.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,272,259 km

• M1: 170,392 km (0.044 R)
• M2: 742,454 km (0.078 R)
• M3: 1,391,111 km (0.093 R)
• M4: 2,101,252 km (0.088 R)
• M5: 2,541,518 km (0.09 R)
• M6: 3,024,420 km (0.088 R)
• M7: 4,560,641 km (0.106 R)
• M8: 5,456,882 km (0.092 R)
• M9: 6,236,137 km (0.066 R)
• M10: 6,842,307 km (0.113 R)
• M11: 8,017,099 km (0.059 R)
• M12: 8,450,784 km (0.11 R)
• M13: 9,322,491 km (0.1 R)
• M14: 11,490,463 km (0.036 R)
• M15: 15,375,520 km (0.043 R)
• M16: 15,862,012 km (0.064 R)
• M17: 16,421,657 km (0.092 R)
• M18: 18,587,236 km (0.062 R)
• M19: 20,789,317 km (0.034 R)
• M20: 22,923,331 km (0.103 R)
• M21: 28,983,540 km (0.104 R)
• M22: 31,543,908 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.8

Radius: 6.7

Gravity: 18.82 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.99 AU - 7.25 AU

Year: 9626 Days

Day: 21.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 47,272,259 km

• M1: 83,326 km (0.097 R)
• M2: 431,889 km (0.072 R)
• M3: 708,047 km (0.097 R)
• M4: 1,003,951 km (0.092 R)
• M5: 1,341,743 km (0.066 R)
• M6: 1,897,649 km (0.103 R)
• M7: 2,476,443 km (0.094 R)
• M8: 3,073,937 km (0.085 R)
• M9: 3,816,541 km (0.116 R)
• M10: 4,116,933 km (0.113 R)
• M11: 4,612,102 km (0.11 R)
• M12: 4,858,490 km (0.11 R)
• M13: 5,211,691 km (0.053 R)
• M14: 7,405,992 km (0.079 R)
• M15: 8,452,728 km (0.116 R)
• M16: 11,383,650 km (0.093 R)
• M17: 13,696,583 km (0.101 R)
• M18: 14,207,011 km (0.111 R)
• M19: 16,662,211 km (0.032 R)
• M20: 17,465,551 km (0.117 R)
• M21: 18,524,854 km (0.109 R)
• M22: 20,854,242 km (0.101 R)
• M23: 23,825,555 km (0.054 R)
• M24: 25,316,896 km (0.039 R)
• M25: 26,085,381 km (0.111 R)
• M26: 28,074,434 km (0.073 R)
• M27: 28,897,671 km (0.078 R)
• M28: 30,162,521 km (0.117 R)
• M29: 31,353,919 km (0.092 R)
• M30: 34,645,072 km (0.078 R)
• M31: 37,909,596 km (0.109 R)
• M32: 38,284,489 km (0.042 R)
• M33: 40,196,349 km (0.103 R)
• M34: 40,586,202 km (0.051 R)
• M35: 41,241,590 km (0.113 R)
• M36: 50,114,239 km (0.067 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.9

Radius: 7.2

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 9.61 AU - 9.87 AU

Year: 19327 Days

Day: 20.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,272,259 km

• M1: 92,003 km (0.082 R)
• M2: 496,067 km (0.108 R)
• M3: 1,415,046 km (0.105 R)
• M4: 2,272,541 km (0.083 R)
• M5: 3,086,653 km (0.073 R)
• M6: 6,534,285 km (0.063 R)
• M7: 7,560,527 km (0.105 R)
• M8: 11,664,146 km (0.102 R)
• M9: 12,113,538 km (0.084 R)
• M10: 12,750,376 km (0.044 R)
• M11: 15,792,598 km (0.062 R)
• M12: 17,119,831 km (0.074 R)
• M13: 17,700,420 km (0.118 R)
• M14: 20,234,608 km (0.101 R)
• M15: 20,801,584 km (0.107 R)
• M16: 23,618,512 km (0.057 R)
• M17: 24,702,947 km (0.076 R)
• M18: 29,579,987 km (0.116 R)
• M19: 30,626,873 km (0.098 R)
• M20: 33,689,440 km (0.119 R)
• M21: 34,029,177 km (0.107 R)
• M22: 35,527,998 km (0.116 R)
• M23: 36,950,076 km (0.092 R)
• M24: 37,190,779 km (0.084 R)
• M25: 38,780,555 km (0.084 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 12,874 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit