🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.62 AU - 0.7 AU

Year: 352 Days

Day: 25.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.5

Radius: 11.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.79 AU - 1.25 AU

Year: 676 Days

Day: 11.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,273,854 km

• M1: 140,472 km (0.082 R)
• M2: 542,891 km (0.062 R)
• M3: 921,822 km (0.106 R)
• M4: 1,325,138 km (0.101 R)
• M5: 1,770,640 km (0.111 R)
• M6: 2,260,873 km (0.049 R)
• M7: 2,664,188 km (0.072 R)
• M8: 3,104,156 km (0.044 R)
• M9: 3,642,858 km (0.032 R)
• M10: 4,173,332 km (0.044 R)
• M11: 4,709,341 km (0.093 R)
• M12: 5,193,440 km (0.071 R)
• M13: 5,659,138 km (0.037 R)
• M14: 6,098,357 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 12.6

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.15 AU - 1.83 AU

Year: 1193 Days

Day: 11.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,273,854 km

• M1: 156,779 km (0.098 R)
• M2: 579,542 km (0.081 R)
• M3: 1,184,666 km (0.078 R)
• M4: 2,055,325 km (0.117 R)
• M5: 3,315,388 km (0.052 R)
• M6: 3,849,602 km (0.062 R)
• M7: 4,440,962 km (0.11 R)
• M8: 4,856,396 km (0.112 R)
• M9: 6,476,989 km (0.112 R)
• M10: 7,387,292 km (0.094 R)
• M11: 7,873,486 km (0.101 R)
• M12: 8,511,371 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.4

Radius: 14.5

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.48 AU - 1.86 AU

Year: 1416 Days

Day: 11.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,273,854 km

• M1: 180,415 km (0.08 R)
• M2: 800,648 km (0.063 R)
• M3: 1,310,328 km (0.036 R)
• M4: 1,839,007 km (0.109 R)
• M5: 2,430,068 km (0.085 R)
• M6: 3,078,874 km (0.111 R)
• M7: 3,732,168 km (0.041 R)
• M8: 4,320,387 km (0.111 R)
• M9: 4,951,091 km (0.106 R)
• M10: 6,466,518 km (0.078 R)
• M11: 7,075,231 km (0.093 R)
• M12: 7,721,943 km (0.068 R)
• M13: 8,793,961 km (0.069 R)
• M14: 9,249,786 km (0.088 R)
• M15: 9,751,388 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 14.5

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.64 AU - 2.38 AU

Year: 1869 Days

Day: 12.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,273,854 km

• M1: 180,565 km (0.102 R)
• M2: 645,814 km (0.091 R)
• M3: 1,347,578 km (0.099 R)
• M4: 1,891,964 km (0.034 R)
• M5: 2,525,661 km (0.099 R)
• M6: 3,108,494 km (0.09 R)
• M7: 3,615,033 km (0.11 R)
• M8: 4,309,615 km (0.073 R)
• M9: 5,186,708 km (0.065 R)
• M10: 5,678,436 km (0.057 R)
• M11: 6,266,356 km (0.103 R)
• M12: 8,842,281 km (0.038 R)
• M13: 9,634,402 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.3

Radius: 9.2

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.76 AU - 2.76 AU

Year: 2229 Days

Day: 9.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 95.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,273,854 km

• M1: 116,986 km (0.099 R)
• M2: 437,574 km (0.085 R)
• M3: 887,115 km (0.095 R)
• M4: 1,184,366 km (0.046 R)
• M5: 2,744,672 km (0.056 R)
• M6: 4,001,593 km (0.081 R)
• M7: 4,659,525 km (0.052 R)
• M8: 5,779,564 km (0.108 R)
• M9: 6,538,025 km (0.076 R)
• M10: 8,740,405 km (0.104 R)
• M11: 9,491,087 km (0.067 R)
• M12: 11,120,657 km (0.099 R)
• M13: 13,543,095 km (0.085 R)
• M14: 17,380,131 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.3

Radius: 10.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.21 AU - 2.77 AU

Year: 2578 Days

Day: 7.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,273,854 km

• M1: 136,433 km (0.104 R)
• M2: 668,702 km (0.076 R)
• M3: 1,508,096 km (0.109 R)
• M4: 1,906,625 km (0.092 R)
• M5: 2,561,116 km (0.103 R)
• M6: 4,066,369 km (0.075 R)
• M7: 4,558,846 km (0.107 R)
• M8: 5,489,793 km (0.06 R)
• M9: 7,536,890 km (0.047 R)
• M10: 8,000,494 km (0.109 R)
• M11: 10,277,673 km (0.092 R)
• M12: 12,918,225 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.8

Radius: 11

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.52 AU - 3.26 AU

Year: 3223 Days

Day: 9.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,273,854 km

• M1: 139,874 km (0.073 R)
• M2: 489,035 km (0.038 R)
• M3: 1,051,523 km (0.104 R)
• M4: 1,505,254 km (0.07 R)
• M5: 2,817,975 km (0.087 R)
• M6: 3,205,434 km (0.111 R)
• M7: 3,568,657 km (0.078 R)
• M8: 3,917,071 km (0.032 R)
• M9: 4,333,551 km (0.082 R)
• M10: 4,731,182 km (0.039 R)
• M11: 5,255,972 km (0.044 R)
• M12: 5,708,954 km (0.073 R)
• M13: 6,422,536 km (0.073 R)
• M14: 6,941,042 km (0.084 R)
• M15: 7,889,941 km (0.039 R)
• M16: 8,236,560 km (0.11 R)
• M17: 9,844,737 km (0.074 R)
• M18: 11,084,305 km (0.037 R)
• M19: 12,240,547 km (0.056 R)
• M20: 12,705,946 km (0.074 R)
• M21: 13,672,497 km (0.044 R)
• M22: 14,072,522 km (0.098 R)
• M23: 14,896,058 km (0.06 R)
• M24: 15,373,276 km (0.082 R)
• M25: 16,025,373 km (0.106 R)
• M26: 17,618,740 km (0.067 R)
• M27: 19,629,335 km (0.11 R)
• M28: 21,184,704 km (0.047 R)
• M29: 23,812,690 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.7

Radius: 12.8

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.45 AU - 5.67 AU

Year: 8600 Days

Day: 10.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,273,854 km

• M1: 159,172 km (0.101 R)
• M2: 583,282 km (0.046 R)
• M3: 1,105,977 km (0.075 R)
• M4: 1,836,314 km (0.081 R)
• M5: 2,613,325 km (0.088 R)
• M6: 3,275,595 km (0.075 R)
• M7: 3,794,101 km (0.081 R)
• M8: 4,258,752 km (0.106 R)
• M9: 5,429,356 km (0.027 R)
• M10: 7,028,856 km (0.106 R)
• M11: 8,020,091 km (0.108 R)
• M12: 8,745,940 km (0.065 R)
• M13: 9,376,196 km (0.06 R)
• M14: 10,677,249 km (0.057 R)
• M15: 12,993,173 km (0.108 R)
• M16: 13,995,030 km (0.075 R)
• M17: 14,795,379 km (0.055 R)
• M18: 17,310,718 km (0.103 R)
• M19: 18,377,949 km (0.094 R)
• M20: 19,337,918 km (0.052 R)
• M21: 20,176,115 km (0.105 R)
• M22: 22,668,865 km (0.087 R)
• M23: 23,429,420 km (0.075 R)
• M24: 24,470,023 km (0.031 R)
• M25: 26,457,281 km (0.117 R)
• M26: 29,536,903 km (0.048 R)
• M27: 31,162,882 km (0.046 R)
• M28: 36,398,957 km (0.06 R)
• M29: 37,676,523 km (0.07 R)
• M30: 41,814,550 km (0.056 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.5

Radius: 5.9

Gravity: 21.76 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 7.65 AU - 8.79 AU

Year: 15460 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 66,273,854 km

• M1: 75,098 km (0.077 R)
• M2: 296,802 km (0.04 R)
• M3: 740,509 km (0.114 R)
• M4: 1,011,581 km (0.069 R)
• M5: 1,420,282 km (0.062 R)
• M6: 1,988,904 km (0.044 R)
• M7: 2,495,891 km (0.089 R)
• M8: 2,887,389 km (0.104 R)
• M9: 3,239,841 km (0.041 R)
• M10: 3,592,443 km (0.042 R)
• M11: 3,821,777 km (0.091 R)
• M12: 4,246,934 km (0.039 R)
• M13: 6,391,868 km (0.036 R)
• M14: 6,686,576 km (0.059 R)
• M15: 7,213,161 km (0.063 R)
• M16: 7,814,245 km (0.096 R)
• M17: 9,543,746 km (0.093 R)
• M18: 10,613,819 km (0.109 R)
• M19: 11,950,177 km (0.118 R)
• M20: 13,738,769 km (0.038 R)
• M21: 14,159,289 km (0.066 R)
• M22: 14,952,307 km (0.113 R)
• M23: 15,622,954 km (0.092 R)
• M24: 16,080,874 km (0.108 R)
• M25: 16,469,529 km (0.084 R)
• M26: 16,705,594 km (0.03 R)
• M27: 18,422,080 km (0.108 R)
• M28: 19,717,747 km (0.105 R)
• M29: 21,726,398 km (0.104 R)
• M30: 22,296,964 km (0.097 R)
• M31: 23,667,281 km (0.12 R)
• M32: 25,720,811 km (0.114 R)
• M33: 27,667,827 km (0.099 R)
• M34: 28,450,972 km (0.083 R)
• M35: 29,479,308 km (0.104 R)
• M36: 38,891,706 km (0.075 R)
• M37: 40,157,454 km (0.073 R)
• M38: 42,033,860 km (0.084 R)
• M39: 43,666,571 km (0.047 R)
• M40: 50,455,173 km (0.099 R)
• M41: 52,468,012 km (0.108 R)
• M42: 56,832,081 km (0.07 R)
• M43: 60,492,741 km (0.117 R)
• M44: 63,146,757 km (0.107 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 18,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit