🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.6

Radius: 13.7

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.48 AU - 0.7 AU

Year: 313 Days

Day: 6.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 70,956,003 km

• M1: 170,542 km (0.075 R)
• M2: 721,660 km (0.077 R)
• M3: 1,417,141 km (0.032 R)
• M4: 1,960,929 km (0.112 R)
• M5: 2,391,322 km (0.093 R)
• M6: 3,361,913 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 8.2

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.68 AU - 0.78 AU

Year: 431 Days

Day: 11.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,956,003 km

• M1: 102,175 km (0.064 R)
• M2: 876,195 km (0.095 R)
• M3: 1,282,353 km (0.117 R)
• M4: 1,855,313 km (0.058 R)
• M5: 2,133,415 km (0.089 R)
• M6: 2,579,366 km (0.073 R)
• M7: 3,000,933 km (0.103 R)
• M8: 3,479,497 km (0.107 R)
• M9: 4,098,982 km (0.095 R)
• M10: 4,603,126 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535

Radius: 11.7

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.59 AU - 0.89 AU

Year: 439 Days

Day: 9.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,956,003 km

• M1: 146,606 km (0.041 R)
• M2: 519,703 km (0.089 R)
• M3: 1,021,305 km (0.087 R)
• M4: 1,528,591 km (0.1 R)
• M5: 2,569,493 km (0.12 R)
• M6: 3,408,587 km (0.069 R)
• M7: 4,380,674 km (0.092 R)
• M8: 5,197,329 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.4

Radius: 14.1

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.01 AU - 1.07 AU

Year: 732 Days

Day: 10.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,956,003 km

• M1: 175,478 km (0.117 R)
• M2: 672,143 km (0.113 R)
• M3: 1,141,282 km (0.052 R)
• M4: 2,543,164 km (0.081 R)
• M5: 3,150,082 km (0.088 R)
• M6: 4,625,117 km (0.043 R)
• M7: 5,261,656 km (0.116 R)
• M8: 6,274,883 km (0.101 R)
• M9: 8,437,021 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.5

Radius: 10.4

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.78 AU - 2.48 AU

Year: 2146 Days

Day: 14.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,956,003 km

• M1: 129,402 km (0.113 R)
• M2: 521,349 km (0.079 R)
• M3: 890,107 km (0.11 R)
• M4: 1,321,248 km (0.079 R)
• M5: 1,790,836 km (0.112 R)
• M6: 2,265,211 km (0.066 R)
• M7: 2,913,419 km (0.109 R)
• M8: 3,573,893 km (0.057 R)
• M9: 4,016,254 km (0.11 R)
• M10: 4,900,527 km (0.109 R)
• M11: 5,424,419 km (0.092 R)
• M12: 5,835,215 km (0.047 R)
• M13: 6,450,660 km (0.061 R)
• M14: 7,194,162 km (0.115 R)
• M15: 8,241,795 km (0.081 R)
• M16: 10,825,052 km (0.12 R)
• M17: 11,439,001 km (0.045 R)
• M18: 12,075,989 km (0.092 R)
• M19: 12,444,598 km (0.109 R)
• M20: 12,778,501 km (0.059 R)
• M21: 14,401,787 km (0.086 R)
• M22: 15,239,236 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.3

Radius: 13.8

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.6 AU - 4.5 AU

Year: 5626 Days

Day: 9.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,956,003 km

• M1: 173,833 km (0.072 R)
• M2: 629,807 km (0.063 R)
• M3: 1,243,158 km (0.106 R)
• M4: 2,089,284 km (0.109 R)
• M5: 2,727,169 km (0.118 R)
• M6: 3,530,061 km (0.088 R)
• M7: 6,055,871 km (0.117 R)
• M8: 7,178,155 km (0.098 R)
• M9: 10,215,291 km (0.097 R)
• M10: 14,264,755 km (0.108 R)
• M11: 14,755,736 km (0.079 R)
• M12: 16,243,935 km (0.081 R)
• M13: 16,725,491 km (0.069 R)
• M14: 17,549,326 km (0.082 R)
• M15: 20,992,022 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.8

Radius: 7.9

Gravity: 15.14 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.58 AU - 8.68 AU

Year: 13142 Days

Day: 23.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,956,003 km

• M1: 98,286 km (0.045 R)
• M2: 579,542 km (0.077 R)
• M3: 1,929,663 km (0.119 R)
• M4: 3,080,370 km (0.05 R)
• M5: 3,774,205 km (0.116 R)
• M6: 5,004,797 km (0.054 R)
• M7: 5,251,334 km (0.098 R)
• M8: 5,542,900 km (0.085 R)
• M9: 6,566,299 km (0.047 R)
• M10: 7,944,844 km (0.093 R)
• M11: 9,085,378 km (0.081 R)
• M12: 10,331,528 km (0.108 R)
• M13: 14,112,315 km (0.119 R)
• M14: 15,702,840 km (0.104 R)
• M15: 16,309,758 km (0.116 R)
• M16: 17,011,223 km (0.082 R)
• M17: 17,489,786 km (0.118 R)
• M18: 17,895,496 km (0.086 R)
• M19: 19,843,110 km (0.109 R)
• M20: 20,284,424 km (0.065 R)
• M21: 23,559,570 km (0.095 R)
• M22: 24,962,798 km (0.04 R)
• M23: 26,315,013 km (0.097 R)
• M24: 26,633,956 km (0.078 R)
• M25: 31,253,987 km (0.112 R)
• M26: 33,440,958 km (0.03 R)
• M27: 35,211,000 km (0.119 R)
• M28: 38,799,405 km (0.107 R)
• M29: 40,752,704 km (0.058 R)
• M30: 42,332,757 km (0.083 R)
• M31: 44,703,285 km (0.079 R)
• M32: 46,538,252 km (0.105 R)
• M33: 48,263,863 km (0.115 R)
• M34: 49,062,267 km (0.098 R)
• M35: 58,976,118 km (0.096 R)
• M36: 59,705,258 km (0.108 R)
• M37: 62,116,327 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.5

Radius: 4.3

Gravity: 34.37 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 9 AU - 9.04 AU

Year: 18699 Days

Day: 17.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,956,003 km

• M1: 53,855 km (0.116 R)
• M2: 252,222 km (0.082 R)
• M3: 517,160 km (0.055 R)
• M4: 748,289 km (0.119 R)
• M5: 1,855,313 km (0.097 R)
• M6: 2,125,187 km (0.057 R)
• M7: 2,555,431 km (0.099 R)
• M8: 3,279,485 km (0.033 R)
• M9: 3,882,962 km (0.07 R)
• M10: 5,612,463 km (0.027 R)
• M11: 7,274,795 km (0.086 R)
• M12: 8,192,428 km (0.055 R)
• M13: 8,705,250 km (0.092 R)
• M14: 9,023,145 km (0.042 R)
• M15: 9,738,073 km (0.109 R)
• M16: 10,022,908 km (0.079 R)
• M17: 10,789,447 km (0.096 R)
• M18: 11,849,947 km (0.08 R)
• M19: 12,438,465 km (0.097 R)
• M20: 13,115,096 km (0.104 R)
• M21: 24,582,072 km (0.042 R)
• M22: 27,749,208 km (0.075 R)
• M23: 28,321,420 km (0.038 R)
• M24: 37,316,890 km (0.098 R)
• M25: 45,309,006 km (0.113 R)
• M26: 45,942,553 km (0.056 R)
• M27: 47,715,737 km (0.115 R)
• M28: 48,536,431 km (0.119 R)
• M29: 54,013,807 km (0.07 R)
• M30: 56,534,232 km (0.106 R)
• M31: 59,320,642 km (0.114 R)
• M32: 59,888,665 km (0.114 R)
• M33: 63,768,785 km (0.082 R)
• M34: 64,564,347 km (0.112 R)
• M35: 65,770,105 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 18,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit