🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.7

Radius: 10.3

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.72 AU - 0.86 AU

Year: 468 Days

Day: 10.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,576,817 km

• M1: 128,056 km (0.089 R)
• M2: 608,415 km (0.111 R)
• M3: 1,084,435 km (0.118 R)
• M4: 1,541,905 km (0.066 R)
• M5: 2,230,803 km (0.092 R)
• M6: 2,883,948 km (0.116 R)
• M7: 3,238,644 km (0.072 R)
• M8: 3,864,861 km (0.055 R)
• M9: 4,555,255 km (0.057 R)
• M10: 5,197,030 km (0.101 R)
• M11: 5,828,483 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971

Radius: 10.6

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.79 AU - 1.01 AU

Year: 569 Days

Day: 5.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,576,817 km

• M1: 131,796 km (0.043 R)
• M2: 555,158 km (0.043 R)
• M3: 1,031,477 km (0.054 R)
• M4: 1,614,011 km (0.084 R)
• M5: 1,963,771 km (0.107 R)
• M6: 2,344,199 km (0.065 R)
• M7: 2,866,295 km (0.054 R)
• M8: 3,346,355 km (0.09 R)
• M9: 3,908,544 km (0.062 R)
• M10: 5,030,228 km (0.108 R)
• M11: 5,454,488 km (0.095 R)
• M12: 5,883,385 km (0.07 R)
• M13: 7,000,881 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.4

Radius: 10.9

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.88 AU - 1.12 AU

Year: 667 Days

Day: 5.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,576,817 km

• M1: 135,536 km (0.051 R)
• M2: 657,183 km (0.111 R)
• M3: 1,130,062 km (0.112 R)
• M4: 2,082,103 km (0.115 R)
• M5: 3,467,978 km (0.113 R)
• M6: 4,710,089 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.2

Radius: 14.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.86 AU - 1.24 AU

Year: 717 Days

Day: 13.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,576,817 km

• M1: 187,297 km (0.115 R)
• M2: 748,887 km (0.093 R)
• M3: 1,815,370 km (0.114 R)
• M4: 2,350,332 km (0.047 R)
• M5: 3,091,440 km (0.088 R)
• M6: 4,061,133 km (0.094 R)
• M7: 4,677,177 km (0.114 R)
• M8: 5,698,632 km (0.097 R)
• M9: 6,409,670 km (0.065 R)
• M10: 7,202,090 km (0.113 R)
• M11: 7,911,783 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.2

Radius: 13.4

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.4 AU - 4.32 AU

Year: 5057 Days

Day: 14.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,576,817 km

• M1: 167,400 km (0.108 R)
• M2: 630,405 km (0.043 R)
• M3: 1,122,732 km (0.103 R)
• M4: 1,784,104 km (0.068 R)
• M5: 2,488,561 km (0.118 R)
• M6: 3,128,690 km (0.116 R)
• M7: 4,232,423 km (0.11 R)
• M8: 6,099,853 km (0.106 R)
• M9: 7,305,612 km (0.058 R)
• M10: 9,789,535 km (0.073 R)
• M11: 10,365,038 km (0.025 R)
• M12: 10,962,981 km (0.088 R)
• M13: 11,486,873 km (0.086 R)
• M14: 14,701,731 km (0.119 R)
• M15: 18,340,998 km (0.036 R)
• M16: 21,198,467 km (0.103 R)
• M17: 22,694,745 km (0.098 R)
• M18: 23,862,506 km (0.11 R)
• M19: 24,988,080 km (0.074 R)
• M20: 28,936,567 km (0.109 R)
• M21: 29,571,909 km (0.081 R)
• M22: 30,402,326 km (0.083 R)
• M23: 31,153,457 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.6

Radius: 9.1

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.89 AU - 6.33 AU

Year: 7703 Days

Day: 9.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,576,817 km

• M1: 113,694 km (0.074 R)
• M2: 451,636 km (0.096 R)
• M3: 1,260,212 km (0.066 R)
• M4: 1,974,841 km (0.083 R)
• M5: 2,342,553 km (0.077 R)
• M6: 3,630,441 km (0.12 R)
• M7: 4,428,097 km (0.112 R)
• M8: 6,367,484 km (0.066 R)
• M9: 11,272,050 km (0.096 R)
• M10: 14,650,718 km (0.078 R)
• M11: 16,162,404 km (0.073 R)
• M12: 19,432,165 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720

Radius: 7.6

Gravity: 12.47 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 5.37 AU - 7.97 AU

Year: 11487 Days

Day: 19 Hours

Environment

Temp: -238 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,576,817 km

• M1: 94,546 km (0.097 R)
• M2: 426,952 km (0.109 R)
• M3: 702,362 km (0.116 R)
• M4: 948,451 km (0.072 R)
• M5: 1,265,897 km (0.108 R)
• M6: 2,584,154 km (0.038 R)
• M7: 2,908,482 km (0.098 R)
• M8: 3,163,397 km (0.111 R)
• M9: 3,963,745 km (0.095 R)
• M10: 5,120,885 km (0.11 R)
• M11: 6,032,833 km (0.055 R)
• M12: 7,468,374 km (0.053 R)
• M13: 7,816,040 km (0.11 R)
• M14: 8,174,476 km (0.093 R)
• M15: 9,315,759 km (0.031 R)
• M16: 10,613,969 km (0.114 R)
• M17: 11,620,463 km (0.1 R)
• M18: 18,633,761 km (0.119 R)
• M19: 24,172,024 km (0.118 R)
• M20: 26,005,944 km (0.081 R)
• M21: 26,906,374 km (0.107 R)
• M22: 29,194,324 km (0.092 R)
• M23: 32,404,395 km (0.066 R)
• M24: 33,213,121 km (0.088 R)
• M25: 34,750,538 km (0.114 R)
• M26: 36,956,658 km (0.063 R)
• M27: 38,607,022 km (0.056 R)
• M28: 40,438,548 km (0.104 R)
• M29: 42,053,906 km (0.112 R)
• M30: 44,415,309 km (0.051 R)
• M31: 46,425,306 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.6

Radius: 5.5

Gravity: 21.14 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 5.18 AU - 8.2 AU

Year: 11539 Days

Day: 16 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,576,817 km

• M1: 197,918 km (0.105 R)
• M2: 432,787 km (0.099 R)
• M3: 694,733 km (0.106 R)
• M4: 901,926 km (0.083 R)
• M5: 1,138,889 km (0.104 R)
• M6: 1,601,744 km (0.1 R)
• M7: 1,884,784 km (0.089 R)
• M8: 2,960,243 km (0.071 R)
• M9: 3,538,588 km (0.101 R)
• M10: 3,747,277 km (0.1 R)
• M11: 5,584,788 km (0.088 R)
• M12: 7,602,115 km (0.041 R)
• M13: 7,906,247 km (0.104 R)
• M14: 8,218,608 km (0.086 R)
• M15: 10,426,224 km (0.057 R)
• M16: 12,041,282 km (0.105 R)
• M17: 12,574,748 km (0.093 R)
• M18: 13,123,623 km (0.099 R)
• M19: 16,830,957 km (0.097 R)
• M20: 20,841,826 km (0.062 R)
• M21: 21,610,160 km (0.078 R)
• M22: 25,736,518 km (0.106 R)
• M23: 26,028,982 km (0.06 R)
• M24: 30,142,625 km (0.108 R)
• M25: 30,685,366 km (0.038 R)
• M26: 32,693,717 km (0.116 R)
• M27: 33,382,166 km (0.066 R)
• M28: 33,963,205 km (0.109 R)
• M29: 39,499,523 km (0.096 R)
• M30: 45,465,785 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.3

Radius: 6.4

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 7.99 AU - 8.71 AU

Year: 16090 Days

Day: 19.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,576,817 km

• M1: 79,885 km (0.036 R)
• M2: 331,509 km (0.066 R)
• M3: 863,629 km (0.048 R)
• M4: 1,068,727 km (0.065 R)
• M5: 1,330,374 km (0.095 R)
• M6: 1,634,506 km (0.096 R)
• M7: 1,892,413 km (0.114 R)
• M8: 2,418,399 km (0.101 R)
• M9: 2,934,362 km (0.079 R)
• M10: 3,295,192 km (0.051 R)
• M11: 4,080,132 km (0.117 R)
• M12: 5,528,838 km (0.065 R)
• M13: 5,816,066 km (0.11 R)
• M14: 9,441,720 km (0.052 R)
• M15: 11,411,026 km (0.099 R)
• M16: 13,183,013 km (0.058 R)
• M17: 22,431,752 km (0.073 R)
• M18: 26,517,419 km (0.12 R)
• M19: 27,611,279 km (0.048 R)
• M20: 28,734,909 km (0.079 R)
• M21: 35,793,235 km (0.104 R)
• M22: 37,353,840 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.5

Radius: 3.6

Gravity: 69.02 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.88 AU - 9.2 AU

Year: 16642 Days

Day: 23.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,576,817 km

• M1: 44,879 km (0.075 R)
• M2: 217,814 km (0.101 R)
• M3: 502,798 km (0.052 R)
• M4: 659,876 km (0.08 R)
• M5: 1,048,681 km (0.105 R)
• M6: 1,221,467 km (0.12 R)
• M7: 1,540,858 km (0.06 R)
• M8: 2,476,892 km (0.112 R)
• M9: 3,170,577 km (0.11 R)
• M10: 3,830,154 km (0.06 R)
• M11: 5,531,680 km (0.054 R)
• M12: 5,850,324 km (0.083 R)
• M13: 7,485,877 km (0.113 R)
• M14: 7,826,213 km (0.117 R)
• M15: 9,914,000 km (0.082 R)
• M16: 10,503,715 km (0.078 R)
• M17: 13,027,431 km (0.085 R)
• M18: 18,431,206 km (0.031 R)
• M19: 19,776,091 km (0.088 R)
• M20: 20,993,368 km (0.038 R)
• M21: 27,604,996 km (0.079 R)
• M22: 36,024,214 km (0.109 R)
• M23: 43,939,587 km (0.073 R)
• M24: 48,800,621 km (0.069 R)
• M25: 50,669,098 km (0.111 R)
• M26: 70,317,282 km (0.061 R)
• M27: 71,176,872 km (0.088 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 20,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit