🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.3

Radius: 14.2

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.41 AU - 0.69 AU

Year: 282 Days

Day: 6.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 73,854,377 km

• M1: 176,525 km (0.104 R)
• M2: 697,724 km (0.068 R)
• M3: 1,163,572 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.5

Radius: 8.7

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.73 AU

Year: 337 Days

Day: 10.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,854,377 km

• M1: 108,159 km (0.087 R)
• M2: 425,756 km (0.045 R)
• M3: 739,761 km (0.107 R)
• M4: 1,076,506 km (0.039 R)
• M5: 1,371,812 km (0.089 R)
• M6: 1,708,856 km (0.062 R)
• M7: 2,063,703 km (0.103 R)
• M8: 2,552,588 km (0.108 R)
• M9: 3,057,780 km (0.116 R)
• M10: 3,329,450 km (0.119 R)
• M11: 3,980,051 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.9

Radius: 8.6

Gravity: 13.18 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.83 AU - 1.25 AU

Year: 732 Days

Day: 12.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,854,377 km

• M1: 133,591 km (0.095 R)
• M2: 531,372 km (0.118 R)
• M3: 907,012 km (0.076 R)
• M4: 1,211,144 km (0.06 R)
• M5: 1,608,776 km (0.12 R)
• M6: 2,013,139 km (0.036 R)
• M7: 2,308,744 km (0.111 R)
• M8: 2,752,451 km (0.069 R)
• M9: 3,198,253 km (0.066 R)
• M10: 3,603,364 km (0.113 R)
• M11: 4,026,726 km (0.096 R)
• M12: 4,776,510 km (0.077 R)
• M13: 5,175,488 km (0.041 R)
• M14: 5,635,950 km (0.116 R)
• M15: 6,040,463 km (0.083 R)
• M16: 6,399,348 km (0.09 R)
• M17: 7,090,341 km (0.065 R)
• M18: 7,879,769 km (0.063 R)
• M19: 8,437,918 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256

Radius: 10.4

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.98 AU - 1.4 AU

Year: 896 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,854,377 km

• M1: 129,402 km (0.076 R)
• M2: 467,493 km (0.109 R)
• M3: 922,570 km (0.09 R)
• M4: 1,459,926 km (0.088 R)
• M5: 2,348,387 km (0.096 R)
• M6: 3,734,711 km (0.109 R)
• M7: 4,281,042 km (0.104 R)
• M8: 5,639,241 km (0.065 R)
• M9: 5,964,318 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122

Radius: 12

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.93 AU - 2.75 AU

Year: 2471 Days

Day: 6.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,854,377 km

• M1: 149,598 km (0.11 R)
• M2: 568,023 km (0.104 R)
• M3: 1,168,359 km (0.038 R)
• M4: 2,502,324 km (0.058 R)
• M5: 3,558,784 km (0.068 R)
• M6: 6,601,604 km (0.104 R)
• M7: 7,909,539 km (0.107 R)
• M8: 9,354,355 km (0.046 R)
• M9: 10,524,958 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.8

Radius: 14.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.57 AU - 3.07 AU

Year: 3269 Days

Day: 13.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,854,377 km

• M1: 180,415 km (0.095 R)
• M2: 1,319,304 km (0.047 R)
• M3: 3,006,468 km (0.113 R)
• M4: 3,940,109 km (0.083 R)
• M5: 4,629,905 km (0.086 R)
• M6: 5,307,284 km (0.079 R)
• M7: 6,000,071 km (0.099 R)
• M8: 6,833,930 km (0.098 R)
• M9: 8,074,994 km (0.064 R)
• M10: 8,541,739 km (0.116 R)
• M11: 9,701,422 km (0.077 R)
• M12: 10,702,830 km (0.072 R)
• M13: 11,228,966 km (0.062 R)
• M14: 12,661,515 km (0.087 R)
• M15: 13,293,117 km (0.063 R)
• M16: 15,695,210 km (0.107 R)
• M17: 16,474,017 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521

Radius: 14.4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.02 AU - 4.68 AU

Year: 5214 Days

Day: 5.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,854,377 km

• M1: 179,218 km (0.088 R)
• M2: 668,403 km (0.093 R)
• M3: 1,386,772 km (0.108 R)
• M4: 1,901,838 km (0.1 R)
• M5: 2,814,834 km (0.113 R)
• M6: 3,432,374 km (0.035 R)
• M7: 4,420,019 km (0.096 R)
• M8: 4,942,414 km (0.103 R)
• M9: 5,731,693 km (0.106 R)
• M10: 6,635,414 km (0.057 R)
• M11: 8,499,702 km (0.1 R)
• M12: 14,119,047 km (0.107 R)
• M13: 18,094,461 km (0.058 R)
• M14: 23,276,232 km (0.117 R)
• M15: 25,021,141 km (0.091 R)
• M16: 25,647,957 km (0.084 R)
• M17: 26,851,771 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 576

Radius: 3.4

Gravity: 49.83 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.79 AU - 7.99 AU

Year: 13867 Days

Day: 20 Hours

Environment

Temp: -223 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 73,854,377 km

• M1: 174,581 km (0.064 R)
• M2: 404,064 km (0.098 R)
• M3: 570,417 km (0.113 R)
• M4: 682,615 km (0.085 R)
• M5: 996,621 km (0.109 R)
• M6: 1,250,040 km (0.072 R)
• M7: 1,515,127 km (0.117 R)
• M8: 2,062,506 km (0.094 R)
• M9: 3,804,573 km (0.112 R)
• M10: 4,480,905 km (0.116 R)
• M11: 5,131,057 km (0.1 R)
• M12: 6,182,132 km (0.092 R)
• M13: 7,631,885 km (0.112 R)
• M14: 8,459,161 km (0.077 R)
• M15: 15,127,337 km (0.108 R)
• M16: 15,338,868 km (0.101 R)
• M17: 18,032,527 km (0.11 R)
• M18: 21,025,233 km (0.088 R)
• M19: 22,092,015 km (0.099 R)
• M20: 22,546,942 km (0.114 R)
• M21: 25,707,347 km (0.114 R)
• M22: 27,132,865 km (0.11 R)
• M23: 39,540,213 km (0.117 R)
• M24: 41,024,673 km (0.037 R)
• M25: 46,884,571 km (0.098 R)
• M26: 48,546,603 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.7

Radius: 6.5

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.39 AU - 10.07 AU

Year: 16297 Days

Day: 18.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,854,377 km

• M1: 82,877 km (0.091 R)
• M2: 302,038 km (0.09 R)
• M3: 715,078 km (0.096 R)
• M4: 1,101,040 km (0.086 R)
• M5: 1,381,237 km (0.098 R)
• M6: 1,589,178 km (0.099 R)
• M7: 2,175,901 km (0.117 R)
• M8: 2,767,710 km (0.114 R)
• M9: 3,387,345 km (0.116 R)
• M10: 4,012,215 km (0.103 R)
• M11: 4,440,214 km (0.036 R)
• M12: 4,993,577 km (0.05 R)
• M13: 5,488,895 km (0.105 R)
• M14: 5,836,860 km (0.052 R)
• M15: 7,090,789 km (0.074 R)
• M16: 7,336,728 km (0.087 R)
• M17: 8,197,963 km (0.096 R)
• M18: 12,031,558 km (0.041 R)
• M19: 12,264,333 km (0.044 R)
• M20: 13,164,164 km (0.112 R)
• M21: 15,708,973 km (0.115 R)
• M22: 16,841,728 km (0.089 R)
• M23: 17,280,200 km (0.066 R)
• M24: 21,235,268 km (0.096 R)
• M25: 26,238,868 km (0.032 R)
• M26: 27,225,765 km (0.102 R)
• M27: 27,931,269 km (0.089 R)
• M28: 30,120,783 km (0.084 R)
• M29: 37,495,210 km (0.097 R)
• M30: 38,620,037 km (0.113 R)
• M31: 50,224,643 km (0.054 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.6

Radius: 3.9

Gravity: 39.95 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 7.2 AU - 11.86 AU

Year: 20307 Days

Day: 20.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,854,377 km

• M1: 50,265 km (0.09 R)
• M2: 210,634 km (0.045 R)
• M3: 554,709 km (0.1 R)
• M4: 855,999 km (0.097 R)
• M5: 1,201,720 km (0.091 R)
• M6: 1,550,133 km (0.082 R)
• M7: 1,848,581 km (0.072 R)
• M8: 3,212,913 km (0.116 R)
• M9: 4,807,627 km (0.11 R)
• M10: 5,172,646 km (0.113 R)
• M11: 6,165,676 km (0.106 R)
• M12: 6,640,500 km (0.062 R)
• M13: 9,109,164 km (0.105 R)
• M14: 13,149,354 km (0.119 R)
• M15: 13,289,676 km (0.079 R)
• M16: 16,555,099 km (0.117 R)
• M17: 17,049,370 km (0.053 R)
• M18: 18,415,647 km (0.119 R)
• M19: 22,048,333 km (0.05 R)
• M20: 23,051,237 km (0.096 R)
• M21: 24,932,430 km (0.095 R)
• M22: 26,576,211 km (0.11 R)
• M23: 29,234,865 km (0.065 R)
• M24: 29,714,625 km (0.066 R)
• M25: 32,192,415 km (0.119 R)
• M26: 36,299,624 km (0.032 R)
• M27: 44,737,692 km (0.086 R)
• M28: 46,017,502 km (0.119 R)
• M29: 60,571,280 km (0.095 R)
• M30: 61,546,359 km (0.072 R)
• M31: 61,742,632 km (0.111 R)
• M32: 63,327,771 km (0.074 R)
• M33: 63,527,783 km (0.029 R)
• M34: 67,201,009 km (0.068 R)
• M35: 70,582,669 km (0.084 R)
• M36: 72,533,874 km (0.119 R)
• M37: 73,412,462 km (0.081 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 12,753 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit