🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.6

Radius: 9.4

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.49 AU - 0.67 AU

Year: 300 Days

Day: 9.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,704,921 km

• M1: 116,986 km (0.058 R)
• M2: 439,219 km (0.081 R)
• M3: 756,217 km (0.112 R)
• M4: 1,339,948 km (0.088 R)
• M5: 1,967,661 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.5

Radius: 11.5

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.65 AU - 0.85 AU

Year: 441 Days

Day: 8.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 169.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,704,921 km

• M1: 143,165 km (0.084 R)
• M2: 616,194 km (0.087 R)
• M3: 1,028,635 km (0.094 R)
• M4: 1,461,422 km (0.096 R)
• M5: 1,819,260 km (0.096 R)
• M6: 2,262,069 km (0.112 R)
• M7: 2,631,576 km (0.093 R)
• M8: 3,147,988 km (0.116 R)
• M9: 3,780,189 km (0.089 R)
• M10: 4,251,871 km (0.103 R)
• M11: 5,025,740 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.6

Radius: 10.9

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.76 AU - 0.9 AU

Year: 513 Days

Day: 12.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,704,921 km

• M1: 135,536 km (0.105 R)
• M2: 487,839 km (0.117 R)
• M3: 865,424 km (0.118 R)
• M4: 1,233,734 km (0.045 R)
• M5: 1,603,091 km (0.116 R)
• M6: 2,323,554 km (0.116 R)
• M7: 2,667,330 km (0.102 R)
• M8: 3,869,349 km (0.109 R)
• M9: 4,223,746 km (0.051 R)
• M10: 4,630,652 km (0.107 R)
• M11: 5,113,704 km (0.025 R)
• M12: 5,594,512 km (0.105 R)
• M13: 6,237,932 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.2

Radius: 11.9

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.81 AU - 1.23 AU

Year: 699 Days

Day: 9 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,704,921 km

• M1: 147,952 km (0.083 R)
• M2: 520,451 km (0.084 R)
• M3: 912,248 km (0.109 R)
• M4: 1,556,566 km (0.113 R)
• M5: 2,010,147 km (0.088 R)
• M6: 3,227,424 km (0.113 R)
• M7: 4,751,827 km (0.077 R)
• M8: 5,444,016 km (0.051 R)
• M9: 6,084,145 km (0.094 R)
• M10: 6,648,429 km (0.09 R)
• M11: 7,470,020 km (0.077 R)
• M12: 7,952,324 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917

Radius: 15

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.92 AU - 1.4 AU

Year: 847 Days

Day: 13.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,704,921 km

• M1: 186,549 km (0.068 R)
• M2: 697,425 km (0.095 R)
• M3: 1,286,093 km (0.091 R)
• M4: 1,824,047 km (0.071 R)
• M5: 2,294,083 km (0.113 R)
• M6: 3,115,525 km (0.11 R)
• M7: 3,618,324 km (0.088 R)
• M8: 4,306,923 km (0.095 R)
• M9: 5,425,316 km (0.079 R)
• M10: 5,990,497 km (0.069 R)
• M11: 6,484,021 km (0.068 R)
• M12: 7,800,931 km (0.086 R)
• M13: 8,764,640 km (0.113 R)
• M14: 9,346,277 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.4

Radius: 13.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.11 AU - 1.55 AU

Year: 1040 Days

Day: 14.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,704,921 km

• M1: 165,904 km (0.111 R)
• M2: 675,883 km (0.096 R)
• M3: 1,172,997 km (0.114 R)
• M4: 1,652,458 km (0.038 R)
• M5: 2,128,479 km (0.036 R)
• M6: 2,553,636 km (0.069 R)
• M7: 3,789,164 km (0.055 R)
• M8: 4,326,670 km (0.091 R)
• M9: 5,858,552 km (0.099 R)
• M10: 6,374,066 km (0.105 R)
• M11: 8,057,192 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.7

Radius: 14.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.1 AU - 3.46 AU

Year: 4029 Days

Day: 7.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,704,921 km

• M1: 175,628 km (0.098 R)
• M2: 693,237 km (0.064 R)
• M3: 1,168,659 km (0.077 R)
• M4: 1,781,711 km (0.104 R)
• M5: 2,397,755 km (0.098 R)
• M6: 3,116,572 km (0.112 R)
• M7: 3,672,927 km (0.099 R)
• M8: 4,318,891 km (0.056 R)
• M9: 5,013,623 km (0.079 R)
• M10: 6,439,740 km (0.041 R)
• M11: 7,799,285 km (0.053 R)
• M12: 8,987,391 km (0.052 R)
• M13: 9,543,746 km (0.04 R)
• M14: 10,165,325 km (0.103 R)
• M15: 10,902,394 km (0.085 R)
• M16: 11,443,788 km (0.09 R)
• M17: 12,050,707 km (0.062 R)
• M18: 14,159,588 km (0.078 R)
• M19: 16,445,743 km (0.082 R)
• M20: 19,686,930 km (0.107 R)
• M21: 22,094,708 km (0.032 R)
• M22: 24,385,949 km (0.084 R)
• M23: 25,392,443 km (0.078 R)
• M24: 27,987,966 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71

Radius: 8.5

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.25 AU - 5.21 AU

Year: 5901 Days

Day: 8.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 113.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,704,921 km

• M1: 105,766 km (0.089 R)
• M2: 425,905 km (0.067 R)
• M3: 1,068,129 km (0.103 R)
• M4: 2,025,705 km (0.103 R)
• M5: 2,343,750 km (0.096 R)
• M6: 2,652,819 km (0.063 R)
• M7: 3,337,229 km (0.097 R)
• M8: 3,837,485 km (0.086 R)
• M9: 4,588,316 km (0.099 R)
• M10: 5,229,792 km (0.115 R)
• M11: 9,599,097 km (0.044 R)
• M12: 13,257,962 km (0.066 R)
• M13: 14,421,684 km (0.093 R)
• M14: 15,792,898 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.4

Radius: 6.3

Gravity: 25.1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.87 AU - 7.35 AU

Year: 11526 Days

Day: 20.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,704,921 km

• M1: 79,586 km (0.029 R)
• M2: 577,149 km (0.052 R)
• M3: 775,815 km (0.118 R)
• M4: 1,959,882 km (0.077 R)
• M5: 2,442,634 km (0.094 R)
• M6: 2,723,429 km (0.071 R)
• M7: 3,074,236 km (0.108 R)
• M8: 10,947,273 km (0.088 R)
• M9: 11,354,927 km (0.118 R)
• M10: 11,954,515 km (0.073 R)
• M11: 13,612,509 km (0.066 R)
• M12: 14,705,620 km (0.038 R)
• M13: 16,078,330 km (0.076 R)
• M14: 17,771,928 km (0.113 R)
• M15: 29,365,015 km (0.035 R)
• M16: 31,183,227 km (0.075 R)
• M17: 34,791,977 km (0.03 R)
• M18: 37,085,611 km (0.096 R)
• M19: 40,573,785 km (0.118 R)
• M20: 42,825,682 km (0.099 R)
• M21: 44,128,230 km (0.114 R)
• M22: 45,011,157 km (0.09 R)
• M23: 46,508,781 km (0.115 R)
• M24: 50,878,535 km (0.03 R)
• M25: 51,849,126 km (0.096 R)
• M26: 55,173,939 km (0.049 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 18,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit