🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.5

Radius: 14.1

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.61 AU - 0.67 AU

Year: 353 Days

Day: 7.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 47,375,429 km

• M1: 175,329 km (0.047 R)
• M2: 1,475,484 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.2

Radius: 14.1

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.6 AU - 0.84 AU

Year: 422 Days

Day: 11.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,375,429 km

• M1: 175,329 km (0.12 R)
• M2: 790,326 km (0.061 R)
• M3: 1,262,008 km (0.095 R)
• M4: 1,912,609 km (0.111 R)
• M5: 2,418,848 km (0.12 R)
• M6: 2,928,678 km (0.048 R)
• M7: 3,901,213 km (0.105 R)
• M8: 4,939,273 km (0.06 R)
• M9: 5,532,129 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.9

Radius: 11.3

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.63 AU - 1.01 AU

Year: 513 Days

Day: 11.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,375,429 km

• M1: 140,472 km (0.078 R)
• M2: 498,311 km (0.09 R)
• M3: 876,793 km (0.08 R)
• M4: 1,576,612 km (0.111 R)
• M5: 2,254,590 km (0.068 R)
• M6: 2,736,145 km (0.069 R)
• M7: 3,249,415 km (0.103 R)
• M8: 3,785,724 km (0.101 R)
• M9: 4,291,664 km (0.094 R)
• M10: 4,716,073 km (0.066 R)
• M11: 5,102,035 km (0.091 R)
• M12: 5,720,922 km (0.114 R)
• M13: 6,485,965 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.8

Radius: 14.9

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.44 AU - 1.6 AU

Year: 1294 Days

Day: 13.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,375,429 km

• M1: 185,352 km (0.12 R)
• M2: 728,841 km (0.077 R)
• M3: 1,197,830 km (0.12 R)
• M4: 1,879,697 km (0.078 R)
• M5: 2,355,568 km (0.077 R)
• M6: 3,158,011 km (0.117 R)
• M7: 3,764,930 km (0.037 R)
• M8: 4,315,899 km (0.111 R)
• M9: 4,848,916 km (0.069 R)
• M10: 5,483,959 km (0.109 R)
• M11: 7,200,146 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.2

Radius: 13.2

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.95 AU - 6.01 AU

Year: 8855 Days

Day: 5.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,375,429 km

• M1: 164,109 km (0.097 R)
• M2: 1,234,781 km (0.084 R)
• M3: 1,663,379 km (0.12 R)
• M4: 2,139,549 km (0.109 R)
• M5: 2,985,375 km (0.064 R)
• M6: 3,678,612 km (0.105 R)
• M7: 5,186,857 km (0.101 R)
• M8: 6,333,675 km (0.038 R)
• M9: 7,642,955 km (0.115 R)
• M10: 8,800,394 km (0.098 R)
• M11: 9,384,125 km (0.099 R)
• M12: 11,850,096 km (0.111 R)
• M13: 14,923,734 km (0.061 R)
• M14: 18,259,318 km (0.08 R)
• M15: 19,453,408 km (0.118 R)
• M16: 21,211,632 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.6

Radius: 7.1

Gravity: 18.74 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.58 AU - 5.92 AU

Year: 9517 Days

Day: 15.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,375,429 km

• M1: 89,759 km (0.105 R)
• M2: 350,508 km (0.111 R)
• M3: 622,178 km (0.11 R)
• M4: 922,869 km (0.114 R)
• M5: 1,207,404 km (0.072 R)
• M6: 2,078,214 km (0.066 R)
• M7: 3,436,113 km (0.112 R)
• M8: 4,598,938 km (0.066 R)
• M9: 5,438,631 km (0.036 R)
• M10: 7,502,782 km (0.094 R)
• M11: 10,405,280 km (0.076 R)
• M12: 11,785,320 km (0.105 R)
• M13: 12,609,305 km (0.108 R)
• M14: 13,980,819 km (0.113 R)
• M15: 14,371,568 km (0.052 R)
• M16: 15,106,692 km (0.047 R)
• M17: 20,053,146 km (0.091 R)
• M18: 20,717,660 km (0.116 R)
• M19: 23,798,628 km (0.114 R)
• M20: 26,079,397 km (0.077 R)
• M21: 28,398,014 km (0.091 R)
• M22: 28,919,662 km (0.108 R)
• M23: 29,767,583 km (0.091 R)
• M24: 31,402,089 km (0.115 R)
• M25: 31,959,790 km (0.097 R)
• M26: 37,906,754 km (0.098 R)
• M27: 41,272,257 km (0.086 R)
• M28: 42,346,520 km (0.11 R)
• M29: 43,577,411 km (0.115 R)
• M30: 44,550,994 km (0.049 R)
• M31: 47,412,502 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.4

Radius: 5.6

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.69 AU - 6.85 AU

Year: 10837 Days

Day: 20.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,375,429 km

• M1: 87,066 km (0.04 R)
• M2: 354,846 km (0.107 R)
• M3: 613,052 km (0.088 R)
• M4: 1,998,927 km (0.076 R)
• M5: 2,476,742 km (0.12 R)
• M6: 2,760,081 km (0.095 R)
• M7: 3,698,957 km (0.119 R)
• M8: 3,892,088 km (0.076 R)
• M9: 4,229,281 km (0.029 R)
• M10: 5,775,525 km (0.053 R)
• M11: 6,549,844 km (0.104 R)
• M12: 7,908,342 km (0.084 R)
• M13: 8,193,775 km (0.113 R)
• M14: 9,208,198 km (0.107 R)
• M15: 9,684,966 km (0.12 R)
• M16: 10,730,655 km (0.073 R)
• M17: 11,528,910 km (0.086 R)
• M18: 13,443,014 km (0.084 R)
• M19: 14,581,304 km (0.092 R)
• M20: 17,225,746 km (0.102 R)
• M21: 20,505,530 km (0.112 R)
• M22: 21,940,323 km (0.067 R)
• M23: 24,104,256 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.7

Radius: 3

Gravity: 33.52 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.56 AU - 8.88 AU

Year: 14806 Days

Day: 19 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 47,375,429 km

• M1: 37,399 km (0.084 R)
• M2: 167,250 km (0.101 R)
• M3: 393,742 km (0.048 R)
• M4: 605,722 km (0.108 R)
• M5: 716,574 km (0.114 R)
• M6: 918,232 km (0.109 R)
• M7: 1,032,525 km (0.113 R)
• M8: 1,447,509 km (0.096 R)
• M9: 1,981,125 km (0.111 R)
• M10: 2,533,590 km (0.1 R)
• M11: 2,634,867 km (0.112 R)
• M12: 2,759,782 km (0.093 R)
• M13: 3,228,771 km (0.12 R)
• M14: 3,697,012 km (0.115 R)
• M15: 4,097,336 km (0.075 R)
• M16: 4,705,302 km (0.041 R)
• M17: 5,437,883 km (0.104 R)
• M18: 6,133,812 km (0.105 R)
• M19: 6,541,017 km (0.107 R)
• M20: 6,731,904 km (0.118 R)
• M21: 6,848,142 km (0.09 R)
• M22: 9,273,572 km (0.045 R)
• M23: 10,416,500 km (0.099 R)
• M24: 10,520,171 km (0.08 R)
• M25: 11,539,082 km (0.054 R)
• M26: 14,021,360 km (0.051 R)
• M27: 15,252,700 km (0.111 R)
• M28: 17,706,105 km (0.114 R)
• M29: 21,147,454 km (0.105 R)
• M30: 26,138,039 km (0.11 R)
• M31: 27,006,904 km (0.077 R)
• M32: 27,399,149 km (0.1 R)
• M33: 30,888,220 km (0.091 R)
• M34: 32,407,088 km (0.091 R)
• M35: 33,409,244 km (0.049 R)
• M36: 33,634,688 km (0.079 R)
• M37: 44,455,251 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 14,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit