🌌 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: 530.8

Radius: 11.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.53 AU - 0.65 AU

Year: 302 Days

Day: 14.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,126,055 km

• M1: 138,079 km (0.082 R)
• M2: 543,040 km (0.092 R)
• M3: 899,532 km (0.067 R)
• M4: 1,262,756 km (0.1 R)
• M5: 1,674,449 km (0.034 R)
• M6: 2,077,017 km (0.114 R)
• M7: 2,721,634 km (0.108 R)
• M8: 3,071,693 km (0.102 R)
• M9: 3,715,712 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.9

Radius: 12.3

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.54 AU - 0.84 AU

Year: 382 Days

Day: 13.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,126,055 km

• M1: 153,039 km (0.099 R)
• M2: 693,386 km (0.067 R)
• M3: 1,337,854 km (0.092 R)
• M4: 1,873,115 km (0.029 R)
• M5: 2,628,285 km (0.031 R)
• M6: 3,071,543 km (0.097 R)
• M7: 3,831,201 km (0.093 R)
• M8: 4,433,183 km (0.112 R)
• M9: 4,817,949 km (0.079 R)
• M10: 5,932,004 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.1

Radius: 14

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.88 AU - 1.26 AU

Year: 738 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,126,055 km

• M1: 174,282 km (0.066 R)
• M2: 652,845 km (0.1 R)
• M3: 1,199,775 km (0.108 R)
• M4: 1,643,781 km (0.098 R)
• M5: 2,499,481 km (0.101 R)
• M6: 2,961,140 km (0.042 R)
• M7: 3,493,110 km (0.115 R)
• M8: 4,003,538 km (0.047 R)
• M9: 5,042,944 km (0.086 R)
• M10: 5,898,195 km (0.073 R)
• M11: 6,686,576 km (0.098 R)
• M12: 7,179,950 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.2

Radius: 11.5

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.88 AU - 2.92 AU

Year: 2479 Days

Day: 13.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,126,055 km

• M1: 143,315 km (0.101 R)
• M2: 746,942 km (0.117 R)
• M3: 1,167,163 km (0.116 R)
• M4: 1,947,315 km (0.07 R)
• M5: 3,605,757 km (0.111 R)
• M6: 3,964,194 km (0.07 R)
• M7: 6,186,022 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 8.5

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.51 AU - 6.95 AU

Year: 9147 Days

Day: 9.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 118.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,126,055 km

• M1: 108,608 km (0.093 R)
• M2: 373,695 km (0.116 R)
• M3: 645,515 km (0.117 R)
• M4: 1,082,191 km (0.1 R)
• M5: 1,438,533 km (0.085 R)
• M6: 1,753,287 km (0.112 R)
• M7: 2,479,286 km (0.094 R)
• M8: 2,902,797 km (0.113 R)
• M9: 3,355,630 km (0.025 R)
• M10: 4,672,540 km (0.075 R)
• M11: 5,758,471 km (0.09 R)
• M12: 6,192,454 km (0.109 R)
• M13: 6,503,319 km (0.116 R)
• M14: 7,156,463 km (0.108 R)
• M15: 10,290,987 km (0.111 R)
• M16: 12,601,077 km (0.03 R)
• M17: 13,240,160 km (0.112 R)
• M18: 15,185,530 km (0.068 R)
• M19: 16,873,293 km (0.111 R)
• M20: 17,258,508 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 907.6

Radius: 7

Gravity: 18.52 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.86 AU - 5.88 AU

Year: 9484 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,126,055 km

• M1: 88,263 km (0.097 R)
• M2: 363,672 km (0.097 R)
• M3: 605,423 km (0.055 R)
• M4: 889,359 km (0.037 R)
• M5: 1,456,784 km (0.082 R)
• M6: 1,718,431 km (0.119 R)
• M7: 1,960,330 km (0.049 R)
• M8: 2,594,775 km (0.114 R)
• M9: 2,982,084 km (0.034 R)
• M10: 3,309,554 km (0.077 R)
• M11: 3,634,929 km (0.082 R)
• M12: 4,092,549 km (0.059 R)
• M13: 4,960,965 km (0.08 R)
• M14: 5,874,708 km (0.083 R)
• M15: 6,240,176 km (0.113 R)
• M16: 8,527,527 km (0.034 R)
• M17: 11,945,390 km (0.102 R)
• M18: 12,772,367 km (0.044 R)
• M19: 14,408,669 km (0.049 R)
• M20: 15,551,147 km (0.072 R)
• M21: 18,786,949 km (0.077 R)
• M22: 19,180,841 km (0.115 R)
• M23: 19,419,898 km (0.106 R)
• M24: 24,721,796 km (0.109 R)
• M25: 25,194,974 km (0.058 R)
• M26: 26,453,391 km (0.05 R)
• M27: 29,622,323 km (0.036 R)
• M28: 30,263,649 km (0.047 R)
• M29: 32,018,881 km (0.116 R)
• M30: 32,807,711 km (0.102 R)
• M31: 33,840,983 km (0.062 R)
• M32: 37,441,654 km (0.077 R)
• M33: 40,369,285 km (0.099 R)
• M34: 42,764,347 km (0.088 R)
• M35: 47,108,369 km (0.11 R)
• M36: 48,422,587 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 738.7

Radius: 7.7

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.26 AU - 7.88 AU

Year: 13889 Days

Day: 24.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,126,055 km

• M1: 95,892 km (0.025 R)
• M2: 350,657 km (0.084 R)
• M3: 629,807 km (0.115 R)
• M4: 1,073,365 km (0.067 R)
• M5: 2,291,241 km (0.092 R)
• M6: 3,889,545 km (0.049 R)
• M7: 5,159,331 km (0.026 R)
• M8: 7,022,573 km (0.033 R)
• M9: 7,641,160 km (0.112 R)
• M10: 7,917,168 km (0.109 R)
• M11: 8,391,992 km (0.059 R)
• M12: 10,315,671 km (0.093 R)
• M13: 18,306,291 km (0.069 R)
• M14: 26,284,196 km (0.101 R)
• M15: 42,443,010 km (0.087 R)
• M16: 43,601,795 km (0.056 R)
• M17: 45,680,159 km (0.081 R)
• M18: 57,949,129 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979.3

Radius: 7.7

Gravity: 16.52 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.93 AU - 10.47 AU

Year: 17112 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 76,126,055 km

• M1: 101,876 km (0.107 R)
• M2: 383,120 km (0.078 R)
• M3: 1,547,889 km (0.116 R)
• M4: 2,158,248 km (0.091 R)
• M5: 2,793,591 km (0.102 R)
• M6: 3,460,947 km (0.092 R)
• M7: 4,099,879 km (0.074 R)
• M8: 5,033,819 km (0.108 R)
• M9: 5,297,560 km (0.106 R)
• M10: 6,018,771 km (0.045 R)
• M11: 6,803,711 km (0.078 R)
• M12: 8,106,409 km (0.089 R)
• M13: 8,575,548 km (0.039 R)
• M14: 11,582,615 km (0.073 R)
• M15: 13,214,878 km (0.066 R)
• M16: 13,501,058 km (0.072 R)
• M17: 14,535,677 km (0.078 R)
• M18: 15,150,076 km (0.042 R)
• M19: 16,022,979 km (0.112 R)
• M20: 16,430,633 km (0.088 R)
• M21: 17,695,184 km (0.096 R)
• M22: 18,043,149 km (0.113 R)
• M23: 20,703,597 km (0.072 R)
• M24: 23,197,992 km (0.025 R)
• M25: 24,787,021 km (0.107 R)
• M26: 25,222,799 km (0.06 R)
• M27: 29,014,657 km (0.103 R)
• M28: 31,361,698 km (0.111 R)
• M29: 31,871,378 km (0.111 R)
• M30: 35,183,474 km (0.107 R)
• M31: 36,710,719 km (0.095 R)
• M32: 37,134,829 km (0.106 R)
• M33: 37,705,395 km (0.102 R)
• M34: 39,748,453 km (0.1 R)
• M35: 49,687,287 km (0.097 R)
• M36: 58,816,048 km (0.057 R)
• M37: 65,623,500 km (0.04 R)
• M38: 66,457,358 km (0.075 R)
• M39: 75,872,300 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 921.1

Radius: 7.2

Gravity: 17.77 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.63 AU - 9.87 AU

Year: 17260 Days

Day: 22.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 76,126,055 km

• M1: 89,609 km (0.111 R)
• M2: 636,240 km (0.112 R)
• M3: 967,300 km (0.117 R)
• M4: 1,306,289 km (0.073 R)
• M5: 1,670,859 km (0.088 R)
• M6: 1,963,173 km (0.067 R)
• M7: 2,871,980 km (0.053 R)
• M8: 3,239,093 km (0.104 R)
• M9: 3,491,315 km (0.09 R)
• M10: 3,726,483 km (0.08 R)
• M11: 4,740,158 km (0.114 R)
• M12: 8,187,192 km (0.07 R)
• M13: 12,948,294 km (0.09 R)
• M14: 15,705,832 km (0.086 R)
• M15: 17,518,659 km (0.077 R)
• M16: 18,036,417 km (0.046 R)
• M17: 18,298,961 km (0.113 R)
• M18: 22,049,230 km (0.098 R)
• M19: 25,177,022 km (0.068 R)
• M20: 25,836,151 km (0.08 R)
• M21: 26,394,300 km (0.109 R)
• M22: 29,912,842 km (0.061 R)
• M23: 30,281,003 km (0.11 R)
• M24: 30,528,138 km (0.1 R)
• M25: 30,901,385 km (0.078 R)
• M26: 31,277,624 km (0.076 R)
• M27: 32,683,395 km (0.111 R)
• M28: 33,073,995 km (0.108 R)
• M29: 36,590,742 km (0.093 R)
• M30: 38,294,811 km (0.092 R)
• M31: 39,459,879 km (0.09 R)
• M32: 48,622,001 km (0.078 R)
• M33: 54,236,858 km (0.12 R)
• M34: 66,108,346 km (0.098 R)
• M35: 75,217,211 km (0.182 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 17,354 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit