🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.9

Radius: 13.5

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.59 AU - 0.81 AU

Year: 378 Days

Day: 12.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,089,895 km

• M1: 167,998 km (0.087 R)
• M2: 627,413 km (0.108 R)
• M3: 1,208,900 km (0.109 R)
• M4: 1,704,518 km (0.106 R)
• M5: 2,213,899 km (0.065 R)
• M6: 2,654,913 km (0.117 R)
• M7: 3,177,459 km (0.105 R)
• M8: 3,632,236 km (0.089 R)
• M9: 4,144,011 km (0.031 R)
• M10: 4,588,017 km (0.103 R)
• M11: 5,048,479 km (0.086 R)
• M12: 5,671,854 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689

Radius: 14

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.81 AU - 1.09 AU

Year: 598 Days

Day: 10.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,089,895 km

• M1: 175,628 km (0.036 R)
• M2: 849,417 km (0.071 R)
• M3: 2,106,787 km (0.059 R)
• M4: 3,138,414 km (0.07 R)
• M5: 3,927,842 km (0.1 R)
• M6: 4,468,788 km (0.028 R)
• M7: 5,365,477 km (0.109 R)
• M8: 5,921,981 km (0.102 R)
• M9: 6,477,139 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.2

Radius: 11

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.07 AU - 1.51 AU

Year: 946 Days

Day: 10.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,089,895 km

• M1: 136,882 km (0.088 R)
• M2: 536,308 km (0.12 R)
• M3: 918,381 km (0.113 R)
• M4: 1,282,652 km (0.099 R)
• M5: 1,700,778 km (0.093 R)
• M6: 2,156,603 km (0.081 R)
• M7: 2,620,356 km (0.083 R)
• M8: 4,442,159 km (0.097 R)
• M9: 5,063,290 km (0.1 R)
• M10: 5,536,019 km (0.099 R)
• M11: 6,146,229 km (0.054 R)
• M12: 6,800,869 km (0.08 R)
• M13: 7,501,436 km (0.078 R)
• M14: 8,169,689 km (0.047 R)
• M15: 8,600,531 km (0.066 R)
• M16: 9,160,177 km (0.111 R)
• M17: 9,714,287 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290

Radius: 12.2

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.25 AU - 3.79 AU

Year: 4264 Days

Day: 10 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,089,895 km

• M1: 162,463 km (0.073 R)
• M2: 1,546,543 km (0.037 R)
• M3: 3,999,200 km (0.116 R)
• M4: 4,951,839 km (0.092 R)
• M5: 5,582,394 km (0.103 R)
• M6: 6,771,398 km (0.103 R)
• M7: 8,187,791 km (0.05 R)
• M8: 9,682,273 km (0.093 R)
• M9: 10,168,018 km (0.114 R)
• M10: 13,663,522 km (0.114 R)
• M11: 16,378,274 km (0.08 R)
• M12: 17,176,977 km (0.093 R)
• M13: 17,723,757 km (0.072 R)
• M14: 18,737,283 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.5

Radius: 14.1

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.86 AU - 4.06 AU

Year: 5088 Days

Day: 6.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,089,895 km

• M1: 209,886 km (0.117 R)
• M2: 895,792 km (0.116 R)
• M3: 1,441,076 km (0.086 R)
• M4: 2,282,116 km (0.104 R)
• M5: 2,806,606 km (0.101 R)
• M6: 3,333,789 km (0.063 R)
• M7: 4,014,459 km (0.096 R)
• M8: 5,354,706 km (0.084 R)
• M9: 5,967,758 km (0.119 R)
• M10: 8,418,171 km (0.119 R)
• M11: 9,017,460 km (0.119 R)
• M12: 9,765,899 km (0.111 R)
• M13: 11,297,781 km (0.069 R)
• M14: 12,168,291 km (0.043 R)
• M15: 12,789,272 km (0.084 R)
• M16: 14,146,872 km (0.098 R)
• M17: 16,562,130 km (0.04 R)
• M18: 17,147,357 km (0.091 R)
• M19: 19,887,840 km (0.076 R)
• M20: 20,750,571 km (0.112 R)
• M21: 24,004,923 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.1

Radius: 15

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.29 AU - 5.49 AU

Year: 5939 Days

Day: 7.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,089,895 km

• M1: 187,147 km (0.084 R)
• M2: 722,259 km (0.095 R)
• M3: 1,522,009 km (0.063 R)
• M4: 2,027,201 km (0.069 R)
• M5: 3,581,822 km (0.088 R)
• M6: 4,052,606 km (0.118 R)
• M7: 4,705,751 km (0.108 R)
• M8: 5,480,967 km (0.063 R)
• M9: 7,034,541 km (0.075 R)
• M10: 11,645,745 km (0.073 R)
• M11: 13,696,433 km (0.12 R)
• M12: 15,279,328 km (0.094 R)
• M13: 16,867,758 km (0.084 R)
• M14: 19,174,408 km (0.081 R)
• M15: 21,417,329 km (0.083 R)
• M16: 21,886,168 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 840.5

Radius: 6.1

Gravity: 22.59 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.85 AU - 7.17 AU

Year: 10725 Days

Day: 19.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,089,895 km

• M1: 75,846 km (0.107 R)
• M2: 344,374 km (0.067 R)
• M3: 1,254,528 km (0.112 R)
• M4: 1,770,042 km (0.08 R)
• M5: 2,040,665 km (0.083 R)
• M6: 2,417,502 km (0.108 R)
• M7: 3,435,216 km (0.112 R)
• M8: 3,858,129 km (0.063 R)
• M9: 5,939,634 km (0.102 R)
• M10: 6,706,921 km (0.116 R)
• M11: 7,281,976 km (0.075 R)
• M12: 7,712,518 km (0.084 R)
• M13: 12,995,866 km (0.09 R)
• M14: 17,107,115 km (0.087 R)
• M15: 23,090,731 km (0.111 R)
• M16: 27,668,425 km (0.108 R)
• M17: 28,188,278 km (0.072 R)
• M18: 29,462,702 km (0.059 R)
• M19: 32,932,026 km (0.112 R)
• M20: 33,398,622 km (0.114 R)
• M21: 35,187,663 km (0.073 R)
• M22: 45,818,237 km (0.066 R)
• M23: 46,986,148 km (0.111 R)
• M24: 51,699,079 km (0.055 R)
• M25: 52,487,610 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 329.6

Radius: 3.7

Gravity: 24.08 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.26 AU - 8.78 AU

Year: 14665 Days

Day: 23.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 53,089,895 km

• M1: 46,226 km (0.036 R)
• M2: 267,631 km (0.097 R)
• M3: 494,571 km (0.036 R)
• M4: 699,071 km (0.085 R)
• M5: 947,403 km (0.089 R)
• M6: 1,064,389 km (0.083 R)
• M7: 4,548,673 km (0.032 R)
• M8: 4,729,985 km (0.079 R)
• M9: 5,674,995 km (0.086 R)
• M10: 5,920,785 km (0.103 R)
• M11: 7,380,261 km (0.097 R)
• M12: 8,689,692 km (0.097 R)
• M13: 8,968,991 km (0.116 R)
• M14: 9,693,344 km (0.117 R)
• M15: 10,932,313 km (0.095 R)
• M16: 11,203,085 km (0.042 R)
• M17: 11,589,796 km (0.12 R)
• M18: 11,758,093 km (0.118 R)
• M19: 13,532,923 km (0.115 R)
• M20: 14,354,514 km (0.081 R)
• M21: 16,659,668 km (0.088 R)
• M22: 19,753,202 km (0.077 R)
• M23: 24,752,464 km (0.055 R)
• M24: 24,938,563 km (0.104 R)
• M25: 26,266,693 km (0.054 R)
• M26: 30,002,451 km (0.07 R)
• M27: 32,383,451 km (0.104 R)
• M28: 34,422,769 km (0.11 R)
• M29: 34,770,883 km (0.093 R)
• M30: 36,066,999 km (0.094 R)
• M31: 41,836,989 km (0.094 R)
• M32: 45,633,933 km (0.099 R)
• M33: 45,913,531 km (0.107 R)
• M34: 47,186,310 km (0.108 R)
• M35: 47,472,341 km (0.091 R)
• M36: 47,615,656 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.1

Radius: 4.4

Gravity: 23.46 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.23 AU - 10.11 AU

Year: 15078 Days

Day: 21.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,089,895 km

• M1: 54,902 km (0.116 R)
• M2: 259,104 km (0.092 R)
• M3: 740,360 km (0.116 R)
• M4: 1,019,659 km (0.095 R)
• M5: 1,234,332 km (0.067 R)
• M6: 2,996,445 km (0.108 R)
• M7: 5,468,700 km (0.105 R)
• M8: 5,864,685 km (0.11 R)
• M9: 6,513,790 km (0.111 R)
• M10: 8,090,253 km (0.078 R)
• M11: 8,461,854 km (0.111 R)
• M12: 8,604,122 km (0.043 R)
• M13: 9,189,049 km (0.07 R)
• M14: 11,387,839 km (0.106 R)
• M15: 11,795,343 km (0.107 R)
• M16: 13,848,275 km (0.084 R)
• M17: 16,419,713 km (0.113 R)
• M18: 16,864,617 km (0.111 R)
• M19: 17,856,301 km (0.09 R)
• M20: 27,432,958 km (0.032 R)
• M21: 28,588,153 km (0.093 R)
• M22: 30,104,926 km (0.057 R)
• M23: 31,788,500 km (0.09 R)
• M24: 32,711,669 km (0.047 R)
• M25: 36,960,847 km (0.105 R)
• M26: 40,078,167 km (0.076 R)
• M27: 45,655,325 km (0.101 R)
• M28: 53,487,522 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.2

Radius: 6.7

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 8.98 AU - 9.14 AU

Year: 17608 Days

Day: 21.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 53,089,895 km

• M1: 85,121 km (0.119 R)
• M2: 296,353 km (0.045 R)
• M3: 1,919,789 km (0.113 R)
• M4: 2,577,123 km (0.117 R)
• M5: 4,416,428 km (0.082 R)
• M6: 5,378,492 km (0.092 R)
• M7: 5,728,402 km (0.085 R)
• M8: 6,473,399 km (0.11 R)
• M9: 7,365,750 km (0.089 R)
• M10: 8,569,864 km (0.085 R)
• M11: 9,194,136 km (0.119 R)
• M12: 10,318,962 km (0.107 R)
• M13: 11,763,329 km (0.111 R)
• M14: 12,962,356 km (0.093 R)
• M15: 13,978,724 km (0.107 R)
• M16: 17,420,822 km (0.119 R)
• M17: 18,499,273 km (0.03 R)
• M18: 19,135,213 km (0.098 R)
• M19: 19,950,522 km (0.11 R)
• M20: 20,873,690 km (0.051 R)
• M21: 22,267,045 km (0.059 R)
• M22: 22,986,461 km (0.064 R)
• M23: 23,907,385 km (0.065 R)
• M24: 28,672,526 km (0.108 R)
• M25: 29,523,888 km (0.105 R)
• M26: 30,064,385 km (0.102 R)
• M27: 31,838,316 km (0.079 R)
• M28: 32,406,788 km (0.1 R)
• M29: 33,097,781 km (0.117 R)
• M30: 34,152,595 km (0.052 R)
• M31: 34,628,466 km (0.081 R)
• M32: 37,957,468 km (0.071 R)
• M33: 42,582,136 km (0.119 R)
• M34: 42,995,176 km (0.117 R)
• M35: 45,529,813 km (0.038 R)
• M36: 46,833,708 km (0.038 R)
• M37: 49,820,130 km (0.092 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 19,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit