🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.4

Radius: 12.9

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.81 AU - 0.89 AU

Year: 541 Days

Day: 5.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,000,138 km

• M1: 160,668 km (0.108 R)
• M2: 675,285 km (0.046 R)
• M3: 1,447,958 km (0.104 R)
• M4: 1,870,123 km (0.071 R)
• M5: 2,535,086 km (0.082 R)
• M6: 3,138,563 km (0.116 R)
• M7: 3,722,743 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.4

Radius: 12.8

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.83 AU - 0.99 AU

Year: 599 Days

Day: 13 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,000,138 km

• M1: 159,172 km (0.11 R)
• M2: 564,582 km (0.041 R)
• M3: 1,381,836 km (0.089 R)
• M4: 2,152,863 km (0.079 R)
• M5: 2,834,281 km (0.056 R)
• M6: 5,001,057 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.5

Radius: 12.7

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.37 AU - 2.11 AU

Year: 1584 Days

Day: 13.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,000,138 km

• M1: 160,219 km (0.093 R)
• M2: 1,124,527 km (0.094 R)
• M3: 1,610,122 km (0.104 R)
• M4: 2,107,984 km (0.043 R)
• M5: 3,185,088 km (0.104 R)
• M6: 4,142,963 km (0.097 R)
• M7: 4,699,468 km (0.064 R)
• M8: 5,112,208 km (0.036 R)
• M9: 5,940,083 km (0.062 R)
• M10: 6,498,382 km (0.11 R)
• M11: 7,497,845 km (0.06 R)
• M12: 8,872,650 km (0.105 R)
• M13: 9,636,496 km (0.074 R)
• M14: 11,701,097 km (0.087 R)
• M15: 12,424,702 km (0.112 R)
• M16: 14,257,874 km (0.104 R)

Asteroid Belt

Center: 2.25 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.4

Radius: 13.7

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.23 AU - 3.27 AU

Year: 3148 Days

Day: 13.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,000,138 km

• M1: 170,392 km (0.043 R)
• M2: 606,470 km (0.073 R)
• M3: 1,280,259 km (0.079 R)
• M4: 2,008,501 km (0.101 R)
• M5: 3,253,006 km (0.111 R)
• M6: 4,343,125 km (0.099 R)
• M7: 5,188,353 km (0.115 R)
• M8: 5,773,879 km (0.038 R)
• M9: 6,314,975 km (0.096 R)
• M10: 7,141,952 km (0.094 R)
• M11: 8,144,407 km (0.091 R)
• M12: 8,752,971 km (0.107 R)
• M13: 10,021,113 km (0.065 R)
• M14: 10,636,708 km (0.077 R)
• M15: 11,496,447 km (0.095 R)
• M16: 11,943,595 km (0.077 R)
• M17: 13,112,253 km (0.117 R)
• M18: 13,749,391 km (0.081 R)
• M19: 14,874,815 km (0.099 R)
• M20: 15,840,470 km (0.089 R)
• M21: 16,338,780 km (0.048 R)
• M22: 17,019,451 km (0.062 R)
• M23: 20,319,430 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.3

Radius: 9.4

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.89 AU - 3.29 AU

Year: 3749 Days

Day: 12.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,000,138 km

• M1: 124,615 km (0.105 R)
• M2: 627,413 km (0.116 R)
• M3: 1,007,093 km (0.073 R)
• M4: 1,327,232 km (0.04 R)
• M5: 1,745,358 km (0.116 R)
• M6: 2,250,251 km (0.026 R)
• M7: 4,005,932 km (0.11 R)
• M8: 6,384,388 km (0.091 R)
• M9: 7,030,502 km (0.084 R)
• M10: 7,343,161 km (0.09 R)
• M11: 10,967,917 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 886

Radius: 8

Gravity: 13.84 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.32 AU - 6.12 AU

Year: 9443 Days

Day: 21.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,000,138 km

• M1: 136,134 km (0.107 R)
• M2: 626,366 km (0.099 R)
• M3: 1,508,994 km (0.118 R)
• M4: 1,805,796 km (0.07 R)
• M5: 3,432,074 km (0.084 R)
• M6: 3,737,254 km (0.112 R)
• M7: 4,116,036 km (0.119 R)
• M8: 4,671,044 km (0.065 R)
• M9: 6,258,277 km (0.095 R)
• M10: 6,872,377 km (0.07 R)
• M11: 7,484,082 km (0.108 R)
• M12: 9,099,889 km (0.081 R)
• M13: 10,350,527 km (0.107 R)
• M14: 10,613,819 km (0.063 R)
• M15: 12,465,392 km (0.084 R)
• M16: 13,250,631 km (0.116 R)
• M17: 13,624,028 km (0.115 R)
• M18: 14,197,137 km (0.103 R)
• M19: 15,459,893 km (0.096 R)
• M20: 19,455,652 km (0.086 R)
• M21: 22,035,168 km (0.082 R)
• M22: 27,760,428 km (0.045 R)
• M23: 34,873,508 km (0.093 R)
• M24: 39,292,030 km (0.109 R)
• M25: 47,751,940 km (0.088 R)
• M26: 48,924,787 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.7

Radius: 4.8

Gravity: 30.33 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.68 AU - 7 AU

Year: 9742 Days

Day: 22.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,000,138 km

• M1: 60,587 km (0.098 R)
• M2: 340,485 km (0.117 R)
• M3: 492,027 km (0.115 R)
• M4: 714,330 km (0.059 R)
• M5: 971,189 km (0.114 R)
• M6: 2,720,288 km (0.077 R)
• M7: 3,252,407 km (0.094 R)
• M8: 6,951,514 km (0.077 R)
• M9: 8,024,729 km (0.099 R)
• M10: 9,251,731 km (0.097 R)
• M11: 11,676,712 km (0.092 R)
• M12: 12,185,046 km (0.117 R)
• M13: 13,245,695 km (0.048 R)
• M14: 14,494,687 km (0.106 R)
• M15: 15,684,290 km (0.106 R)
• M16: 18,557,765 km (0.117 R)
• M17: 25,319,888 km (0.106 R)
• M18: 25,979,615 km (0.104 R)
• M19: 26,650,711 km (0.093 R)
• M20: 34,123,873 km (0.112 R)
• M21: 35,510,944 km (0.094 R)
• M22: 38,396,986 km (0.057 R)
• M23: 40,405,487 km (0.088 R)
• M24: 43,951,854 km (0.081 R)
• M25: 45,041,226 km (0.068 R)
• M26: 46,568,172 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.2

Radius: 6.8

Gravity: 12.68 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.47 AU - 7.29 AU

Year: 9842 Days

Day: 24.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 76,000,138 km

• M1: 85,420 km (0.103 R)
• M2: 359,932 km (0.103 R)
• M3: 1,092,364 km (0.102 R)
• M4: 1,571,077 km (0.1 R)
• M5: 2,044,704 km (0.111 R)
• M6: 2,629,332 km (0.098 R)
• M7: 3,048,057 km (0.076 R)
• M8: 3,608,151 km (0.114 R)
• M9: 3,965,391 km (0.095 R)
• M10: 4,632,448 km (0.099 R)
• M11: 4,962,161 km (0.115 R)
• M12: 5,275,419 km (0.117 R)
• M13: 5,804,098 km (0.087 R)
• M14: 6,851,433 km (0.102 R)
• M15: 7,850,896 km (0.059 R)
• M16: 9,695,288 km (0.115 R)
• M17: 12,369,949 km (0.095 R)
• M18: 12,829,813 km (0.11 R)
• M19: 13,967,953 km (0.075 R)
• M20: 14,720,430 km (0.116 R)
• M21: 15,367,890 km (0.103 R)
• M22: 15,832,391 km (0.056 R)
• M23: 16,101,967 km (0.102 R)
• M24: 16,789,369 km (0.068 R)
• M25: 17,567,876 km (0.045 R)
• M26: 17,784,195 km (0.077 R)
• M27: 22,666,172 km (0.094 R)
• M28: 27,200,483 km (0.095 R)
• M29: 31,130,868 km (0.083 R)
• M30: 33,840,086 km (0.117 R)
• M31: 35,309,137 km (0.108 R)
• M32: 35,885,388 km (0.079 R)
• M33: 38,011,622 km (0.102 R)
• M34: 39,970,905 km (0.091 R)
• M35: 44,222,627 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.8

Radius: 4.7

Gravity: 29.51 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 9.05 AU - 10.11 AU

Year: 20467 Days

Day: 21.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,000,138 km

• M1: 58,493 km (0.101 R)
• M2: 258,056 km (0.097 R)
• M3: 1,082,191 km (0.082 R)
• M4: 1,288,337 km (0.036 R)
• M5: 1,520,214 km (0.054 R)
• M6: 3,601,569 km (0.073 R)
• M7: 3,751,316 km (0.093 R)
• M8: 4,225,541 km (0.058 R)
• M9: 4,955,280 km (0.117 R)
• M10: 5,486,203 km (0.085 R)
• M11: 5,847,033 km (0.047 R)
• M12: 6,138,599 km (0.035 R)
• M13: 6,616,115 km (0.058 R)
• M14: 8,509,576 km (0.112 R)
• M15: 9,047,679 km (0.113 R)
• M16: 10,311,033 km (0.05 R)
• M17: 11,236,894 km (0.099 R)
• M18: 12,487,682 km (0.115 R)
• M19: 13,610,564 km (0.094 R)
• M20: 15,655,268 km (0.106 R)
• M21: 18,070,076 km (0.12 R)
• M22: 20,247,324 km (0.057 R)
• M23: 21,891,404 km (0.112 R)
• M24: 26,668,663 km (0.063 R)
• M25: 27,700,739 km (0.04 R)
• M26: 37,358,627 km (0.06 R)
• M27: 59,193,334 km (0.068 R)
• M28: 60,162,728 km (0.106 R)
• M29: 64,146,221 km (0.057 R)
• M30: 65,581,014 km (0.105 R)
• M31: 74,641,409 km (0.175 R)
• M32: 75,545,429 km (0.115 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: 312 - 18,639 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit