🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.3

Radius: 11.3

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.63 AU - 0.83 AU

Year: 423 Days

Day: 8.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,545,426 km

• M1: 140,472 km (0.108 R)
• M2: 503,995 km (0.03 R)
• M3: 948,301 km (0.117 R)
• M4: 1,468,303 km (0.112 R)
• M5: 2,060,711 km (0.085 R)
• M6: 2,992,556 km (0.058 R)
• M7: 3,363,559 km (0.092 R)
• M8: 3,791,708 km (0.056 R)
• M9: 4,270,421 km (0.09 R)
• M10: 4,866,568 km (0.112 R)
• M11: 5,234,130 km (0.026 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.2

Radius: 9.1

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.69 AU - 1.05 AU

Year: 550 Days

Day: 10.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,545,426 km

• M1: 113,096 km (0.073 R)
• M2: 396,883 km (0.119 R)
• M3: 722,408 km (0.099 R)
• M4: 1,314,217 km (0.114 R)
• M5: 1,910,814 km (0.103 R)
• M6: 2,257,581 km (0.119 R)
• M7: 3,162,050 km (0.093 R)
• M8: 3,878,774 km (0.078 R)
• M9: 4,188,591 km (0.081 R)
• M10: 4,591,308 km (0.11 R)
• M11: 5,069,124 km (0.103 R)
• M12: 5,632,509 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.8

Radius: 8.1

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.31 AU - 1.49 AU

Year: 1124 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,545,426 km

• M1: 101,128 km (0.066 R)
• M2: 379,829 km (0.082 R)
• M3: 640,279 km (0.047 R)
• M4: 1,113,906 km (0.079 R)
• M5: 1,978,432 km (0.101 R)
• M6: 2,310,390 km (0.108 R)
• M7: 2,615,270 km (0.12 R)
• M8: 3,002,429 km (0.093 R)
• M9: 3,583,318 km (0.086 R)
• M10: 4,131,295 km (0.103 R)
• M11: 4,715,026 km (0.084 R)
• M12: 6,182,581 km (0.114 R)
• M13: 6,921,145 km (0.096 R)
• M14: 8,013,958 km (0.065 R)
• M15: 8,430,738 km (0.084 R)
• M16: 10,836,122 km (0.107 R)
• M17: 11,208,620 km (0.034 R)
• M18: 11,589,646 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.3

Radius: 9.7

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.44 AU - 1.78 AU

Year: 1386 Days

Day: 6.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,545,426 km

• M1: 120,725 km (0.081 R)
• M2: 775,515 km (0.077 R)
• M3: 1,106,725 km (0.055 R)
• M4: 1,580,352 km (0.091 R)
• M5: 1,932,057 km (0.081 R)
• M6: 2,429,918 km (0.12 R)
• M7: 3,186,584 km (0.119 R)
• M8: 3,928,290 km (0.077 R)
• M9: 5,396,594 km (0.113 R)
• M10: 5,809,933 km (0.085 R)
• M11: 7,023,919 km (0.087 R)
• M12: 8,081,875 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.2

Radius: 13.6

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.77 AU - 2.27 AU

Year: 1947 Days

Day: 10.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,545,426 km

• M1: 169,494 km (0.096 R)
• M2: 661,073 km (0.05 R)
• M3: 1,269,787 km (0.119 R)
• M4: 2,232,299 km (0.037 R)
• M5: 2,844,903 km (0.054 R)
• M6: 3,517,644 km (0.068 R)
• M7: 4,217,762 km (0.071 R)
• M8: 5,707,009 km (0.112 R)
• M9: 6,367,035 km (0.111 R)
• M10: 12,224,839 km (0.107 R)
• M11: 12,705,497 km (0.105 R)
• M12: 13,833,166 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.1

Radius: 11.6

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.92 AU - 3.06 AU

Year: 3507 Days

Day: 6.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,545,426 km

• M1: 144,362 km (0.087 R)
• M2: 518,506 km (0.045 R)
• M3: 1,672,205 km (0.081 R)
• M4: 2,111,873 km (0.077 R)
• M5: 3,513,007 km (0.091 R)
• M6: 5,198,376 km (0.09 R)
• M7: 5,754,581 km (0.059 R)
• M8: 6,527,703 km (0.081 R)
• M9: 7,731,517 km (0.067 R)
• M10: 8,529,023 km (0.089 R)
• M11: 8,892,397 km (0.118 R)
• M12: 9,689,604 km (0.034 R)
• M13: 11,557,782 km (0.097 R)
• M14: 12,414,529 km (0.058 R)
• M15: 12,834,899 km (0.079 R)
• M16: 13,458,872 km (0.079 R)
• M17: 15,506,717 km (0.092 R)
• M18: 16,214,764 km (0.084 R)
• M19: 19,451,463 km (0.105 R)
• M20: 20,598,131 km (0.096 R)
• M21: 21,122,023 km (0.086 R)
• M22: 21,721,910 km (0.109 R)
• M23: 23,519,179 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.6

Radius: 13.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.63 AU - 5.67 AU

Year: 6801 Days

Day: 14.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,545,426 km

• M1: 163,211 km (0.084 R)
• M2: 606,171 km (0.12 R)
• M3: 1,428,809 km (0.084 R)
• M4: 1,900,940 km (0.116 R)
• M5: 2,971,313 km (0.081 R)
• M6: 3,464,687 km (0.088 R)
• M7: 5,140,033 km (0.119 R)
• M8: 7,523,576 km (0.064 R)
• M9: 8,895,538 km (0.034 R)
• M10: 9,663,125 km (0.076 R)
• M11: 10,244,612 km (0.113 R)
• M12: 17,153,939 km (0.1 R)
• M13: 19,800,176 km (0.091 R)
• M14: 21,183,358 km (0.102 R)
• M15: 23,496,889 km (0.118 R)
• M16: 25,046,573 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.1

Radius: 11.9

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.94 AU - 5.52 AU

Year: 6977 Days

Day: 14 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,545,426 km

• M1: 148,251 km (0.088 R)
• M2: 555,606 km (0.091 R)
• M3: 1,241,513 km (0.085 R)
• M4: 1,666,371 km (0.099 R)
• M5: 3,031,451 km (0.102 R)
• M6: 4,612,701 km (0.099 R)
• M7: 5,299,205 km (0.064 R)
• M8: 6,319,164 km (0.096 R)
• M9: 12,676,774 km (0.038 R)
• M10: 19,202,682 km (0.091 R)
• M11: 19,652,223 km (0.098 R)
• M12: 21,659,229 km (0.078 R)
• M13: 23,652,471 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 902.3

Radius: 3.1

Gravity: 93.89 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.66 AU - 7.5 AU

Year: 10168 Days

Day: 16.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,545,426 km

• M1: 44,131 km (0.117 R)
• M2: 144,811 km (0.096 R)
• M3: 348,264 km (0.047 R)
• M4: 619,485 km (0.088 R)
• M5: 888,163 km (0.042 R)
• M6: 1,095,206 km (0.094 R)
• M7: 1,605,036 km (0.095 R)
• M8: 2,199,837 km (0.08 R)
• M9: 2,793,740 km (0.087 R)
• M10: 3,021,428 km (0.102 R)
• M11: 3,212,315 km (0.096 R)
• M12: 3,670,982 km (0.052 R)
• M13: 3,888,348 km (0.104 R)
• M14: 7,206,429 km (0.112 R)
• M15: 7,765,177 km (0.071 R)
• M16: 11,335,479 km (0.097 R)
• M17: 15,581,815 km (0.093 R)
• M18: 15,793,346 km (0.065 R)
• M19: 16,150,287 km (0.062 R)
• M20: 16,294,649 km (0.115 R)
• M21: 17,103,674 km (0.073 R)
• M22: 17,785,092 km (0.112 R)
• M23: 18,642,438 km (0.11 R)
• M24: 20,020,982 km (0.114 R)
• M25: 20,354,885 km (0.092 R)
• M26: 23,529,501 km (0.117 R)
• M27: 28,569,005 km (0.093 R)
• M28: 28,674,321 km (0.081 R)
• M29: 34,759,813 km (0.047 R)
• M30: 37,215,612 km (0.102 R)
• M31: 37,847,214 km (0.095 R)
• M32: 40,312,138 km (0.059 R)
• M33: 43,855,813 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 731.1

Radius: 7.8

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.69 AU - 8.91 AU

Year: 14775 Days

Day: 16.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,545,426 km

• M1: 98,286 km (0.072 R)
• M2: 819,647 km (0.071 R)
• M3: 1,136,794 km (0.091 R)
• M4: 1,445,564 km (0.11 R)
• M5: 2,005,509 km (0.106 R)
• M6: 2,935,559 km (0.047 R)
• M7: 4,097,037 km (0.104 R)
• M8: 5,428,458 km (0.083 R)
• M9: 6,600,707 km (0.03 R)
• M10: 8,075,742 km (0.061 R)
• M11: 9,173,641 km (0.065 R)
• M12: 13,394,844 km (0.066 R)
• M13: 15,218,591 km (0.058 R)
• M14: 16,964,548 km (0.072 R)
• M15: 22,901,938 km (0.064 R)
• M16: 25,703,757 km (0.083 R)
• M17: 31,142,537 km (0.107 R)
• M18: 35,208,607 km (0.119 R)
• M19: 37,568,962 km (0.071 R)
• M20: 49,503,581 km (0.116 R)
• M21: 50,313,504 km (0.081 R)
• M22: 52,796,230 km (0.075 R)
• M23: 53,133,274 km (0.113 R)
• M24: 53,811,850 km (0.115 R)
• M25: 54,496,111 km (0.118 R)
• M26: 56,936,650 km (0.113 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 15,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit