🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.7

Radius: 9.5

Gravity: 10.82 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.64 AU - 0.9 AU

Year: 436 Days

Day: 14.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,348,976 km

• M1: 118,182 km (0.05 R)
• M2: 532,269 km (0.044 R)
• M3: 1,146,518 km (0.114 R)
• M4: 1,453,343 km (0.109 R)
• M5: 1,783,955 km (0.072 R)
• M6: 2,322,956 km (0.103 R)
• M7: 3,012,602 km (0.081 R)
• M8: 3,608,450 km (0.12 R)
• M9: 3,983,193 km (0.078 R)
• M10: 4,502,896 km (0.105 R)
• M11: 5,838,506 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.6

Radius: 15

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.95 AU - 1.33 AU

Year: 786 Days

Day: 10.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,348,976 km

• M1: 187,596 km (0.119 R)
• M2: 670,797 km (0.119 R)
• M3: 1,283,999 km (0.097 R)
• M4: 2,262,069 km (0.082 R)
• M5: 2,935,260 km (0.117 R)
• M6: 3,451,821 km (0.079 R)
• M7: 4,416,728 km (0.086 R)
• M8: 4,936,281 km (0.096 R)
• M9: 5,996,032 km (0.069 R)
• M10: 6,881,203 km (0.086 R)
• M11: 7,680,055 km (0.109 R)
• M12: 8,383,614 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.2

Radius: 13.8

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.23 AU - 1.91 AU

Year: 1270 Days

Day: 12.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,348,976 km

• M1: 177,573 km (0.079 R)
• M2: 629,657 km (0.09 R)
• M3: 1,074,262 km (0.08 R)
• M4: 1,544,448 km (0.113 R)
• M5: 2,143,887 km (0.048 R)
• M6: 2,896,514 km (0.087 R)
• M7: 3,738,600 km (0.115 R)
• M8: 4,279,546 km (0.057 R)
• M9: 6,178,841 km (0.048 R)
• M10: 6,670,719 km (0.087 R)
• M11: 7,341,665 km (0.054 R)
• M12: 7,867,352 km (0.069 R)
• M13: 9,322,939 km (0.112 R)
• M14: 9,877,349 km (0.073 R)
• M15: 11,018,781 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.2

Radius: 14.7

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.57 AU - 1.73 AU

Year: 1368 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,348,976 km

• M1: 184,155 km (0.039 R)
• M2: 898,784 km (0.096 R)
• M3: 1,517,670 km (0.113 R)
• M4: 2,202,529 km (0.07 R)
• M5: 2,728,665 km (0.113 R)
• M6: 3,652,881 km (0.07 R)
• M7: 4,243,942 km (0.032 R)
• M8: 5,163,071 km (0.084 R)
• M9: 5,806,941 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.3

Radius: 14.2

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.71 AU - 2.25 AU

Year: 1799 Days

Day: 11.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,348,976 km

• M1: 176,525 km (0.11 R)
• M2: 771,476 km (0.112 R)
• M3: 1,571,226 km (0.064 R)
• M4: 2,208,214 km (0.071 R)
• M5: 2,684,235 km (0.112 R)
• M6: 3,389,289 km (0.042 R)
• M7: 4,065,771 km (0.12 R)
• M8: 4,768,881 km (0.098 R)
• M9: 5,370,863 km (0.062 R)
• M10: 5,999,174 km (0.113 R)
• M11: 7,629,192 km (0.118 R)
• M12: 9,873,759 km (0.12 R)
• M13: 12,810,215 km (0.058 R)
• M14: 13,469,194 km (0.086 R)
• M15: 13,935,341 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.9

Radius: 11.6

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.85 AU - 3.17 AU

Year: 3372 Days

Day: 5.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,348,976 km

• M1: 144,212 km (0.108 R)
• M2: 532,868 km (0.087 R)
• M3: 956,230 km (0.083 R)
• M4: 1,694,794 km (0.071 R)
• M5: 2,309,791 km (0.117 R)
• M6: 2,722,831 km (0.075 R)
• M7: 3,304,767 km (0.117 R)
• M8: 3,832,398 km (0.088 R)
• M9: 4,586,970 km (0.117 R)
• M10: 4,965,752 km (0.093 R)
• M11: 5,389,562 km (0.108 R)
• M12: 6,865,345 km (0.106 R)
• M13: 8,202,002 km (0.112 R)
• M14: 8,728,737 km (0.08 R)
• M15: 9,418,981 km (0.103 R)
• M16: 9,813,770 km (0.08 R)
• M17: 10,219,629 km (0.107 R)
• M18: 10,830,138 km (0.072 R)
• M19: 11,915,470 km (0.105 R)
• M20: 13,975,433 km (0.1 R)
• M21: 14,920,293 km (0.108 R)
• M22: 15,457,798 km (0.072 R)
• M23: 16,008,319 km (0.106 R)
• M24: 19,244,120 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 8.2

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.43 AU - 4.23 AU

Year: 4840 Days

Day: 11.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,348,976 km

• M1: 130,300 km (0.071 R)
• M2: 615,146 km (0.104 R)
• M3: 1,132,456 km (0.075 R)
• M4: 1,498,671 km (0.112 R)
• M5: 2,623,498 km (0.082 R)
• M6: 3,038,034 km (0.11 R)
• M7: 3,975,563 km (0.104 R)
• M8: 4,649,203 km (0.116 R)
• M9: 5,121,034 km (0.073 R)
• M10: 6,600,557 km (0.085 R)
• M11: 7,403,599 km (0.101 R)
• M12: 7,792,852 km (0.083 R)
• M13: 9,003,099 km (0.118 R)
• M14: 11,183,937 km (0.053 R)
• M15: 12,031,259 km (0.115 R)
• M16: 15,851,690 km (0.069 R)
• M17: 17,471,535 km (0.111 R)
• M18: 18,289,536 km (0.082 R)
• M19: 18,675,499 km (0.044 R)
• M20: 25,376,287 km (0.115 R)
• M21: 26,261,607 km (0.047 R)
• M22: 26,670,757 km (0.082 R)
• M23: 27,585,847 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.4

Radius: 10.4

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.82 AU - 4.04 AU

Year: 5030 Days

Day: 8.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,348,976 km

• M1: 129,402 km (0.101 R)
• M2: 583,432 km (0.069 R)
• M3: 1,242,859 km (0.082 R)
• M4: 1,582,147 km (0.119 R)
• M5: 2,275,084 km (0.098 R)
• M6: 3,104,754 km (0.111 R)
• M7: 3,845,563 km (0.046 R)
• M8: 4,394,437 km (0.079 R)
• M9: 4,994,923 km (0.118 R)
• M10: 7,065,059 km (0.109 R)
• M11: 9,457,278 km (0.08 R)
• M12: 11,179,000 km (0.053 R)
• M13: 11,887,047 km (0.064 R)
• M14: 12,483,942 km (0.115 R)
• M15: 14,810,339 km (0.103 R)
• M16: 15,393,920 km (0.093 R)
• M17: 16,948,990 km (0.085 R)
• M18: 17,295,309 km (0.078 R)
• M19: 17,883,079 km (0.079 R)
• M20: 18,302,551 km (0.116 R)
• M21: 19,854,031 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.9

Radius: 6.6

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.52 AU - 8.28 AU

Year: 14337 Days

Day: 16.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,348,976 km

• M1: 82,129 km (0.084 R)
• M2: 399,426 km (0.038 R)
• M3: 955,182 km (0.088 R)
• M4: 1,272,479 km (0.104 R)
• M5: 2,452,956 km (0.076 R)
• M6: 3,323,018 km (0.12 R)
• M7: 4,761,102 km (0.114 R)
• M8: 5,726,457 km (0.095 R)
• M9: 8,130,195 km (0.106 R)
• M10: 8,555,353 km (0.098 R)
• M11: 9,657,141 km (0.089 R)
• M12: 10,296,373 km (0.057 R)
• M13: 11,957,507 km (0.082 R)
• M14: 14,123,385 km (0.086 R)
• M15: 22,440,279 km (0.069 R)
• M16: 24,617,826 km (0.083 R)
• M17: 31,641,296 km (0.096 R)
• M18: 33,524,883 km (0.088 R)
• M19: 42,227,290 km (0.092 R)
• M20: 44,507,461 km (0.118 R)
• M21: 52,645,435 km (0.12 R)
• M22: 54,782,740 km (0.112 R)
• M23: 55,451,892 km (0.08 R)
• M24: 56,126,428 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863.9

Radius: 4.1

Gravity: 51.39 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.99 AU - 11.77 AU

Year: 20052 Days

Day: 22.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,348,976 km

• M1: 52,509 km (0.035 R)
• M2: 286,630 km (0.116 R)
• M3: 709,393 km (0.047 R)
• M4: 963,709 km (0.034 R)
• M5: 1,725,462 km (0.102 R)
• M6: 1,996,533 km (0.028 R)
• M7: 2,317,720 km (0.068 R)
• M8: 2,672,566 km (0.098 R)
• M9: 5,318,055 km (0.106 R)
• M10: 9,095,700 km (0.053 R)
• M11: 17,039,347 km (0.119 R)
• M12: 17,827,279 km (0.076 R)
• M13: 18,639,296 km (0.065 R)
• M14: 19,100,955 km (0.071 R)
• M15: 29,134,485 km (0.087 R)
• M16: 37,476,511 km (0.083 R)
• M17: 49,178,654 km (0.076 R)
• M18: 55,563,192 km (0.112 R)
• M19: 63,718,371 km (0.05 R)
• M20: 64,554,324 km (0.113 R)
• M21: 66,034,594 km (0.106 R)
• M22: 69,282,663 km (0.119 R)
• M23: 71,731,281 km (0.041 R)
• M24: 74,006,665 km (0.114 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: 234 - 20,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit