🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.44 AU - 0.72 AU

Year: 290 Days

Day: 32 Hours

Environment

Temp: -134 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63

Radius: 11.7

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.68 AU - 0.76 AU

Year: 401 Days

Day: 5.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,122,732 km

• M1: 145,559 km (0.091 R)
• M2: 525,837 km (0.026 R)
• M3: 940,372 km (0.116 R)
• M4: 1,386,772 km (0.057 R)
• M5: 2,011,343 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937

Radius: 13

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.88 AU - 1.32 AU

Year: 757 Days

Day: 10.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,122,732 km

• M1: 161,715 km (0.073 R)
• M2: 738,415 km (0.03 R)
• M3: 1,249,292 km (0.069 R)
• M4: 1,735,784 km (0.106 R)
• M5: 2,306,799 km (0.028 R)
• M6: 2,951,267 km (0.113 R)
• M7: 4,205,346 km (0.115 R)
• M8: 4,637,085 km (0.086 R)
• M9: 5,098,445 km (0.059 R)
• M10: 5,848,379 km (0.034 R)
• M11: 8,650,347 km (0.059 R)
• M12: 9,187,404 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.6

Radius: 14.1

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.41 AU - 2.31 AU

Year: 1664 Days

Day: 6.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,122,732 km

• M1: 175,329 km (0.097 R)
• M2: 622,178 km (0.05 R)
• M3: 1,188,705 km (0.11 R)
• M4: 1,891,815 km (0.078 R)
• M5: 2,412,565 km (0.074 R)
• M6: 3,115,226 km (0.07 R)
• M7: 3,985,886 km (0.099 R)
• M8: 4,794,761 km (0.103 R)
• M9: 6,257,679 km (0.095 R)
• M10: 7,917,617 km (0.108 R)
• M11: 8,454,374 km (0.117 R)
• M12: 8,895,089 km (0.077 R)
• M13: 12,018,095 km (0.045 R)
• M14: 12,463,597 km (0.046 R)
• M15: 12,958,616 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.9

Radius: 14.6

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.79 AU - 2.07 AU

Year: 1759 Days

Day: 7.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,122,732 km

• M1: 181,612 km (0.09 R)
• M2: 718,219 km (0.1 R)
• M3: 1,371,962 km (0.072 R)
• M4: 1,834,070 km (0.099 R)
• M5: 2,312,933 km (0.1 R)
• M6: 3,129,587 km (0.093 R)
• M7: 3,621,615 km (0.095 R)
• M8: 4,115,288 km (0.109 R)
• M9: 4,782,345 km (0.104 R)
• M10: 5,399,286 km (0.036 R)
• M11: 6,607,439 km (0.071 R)
• M12: 7,128,787 km (0.107 R)
• M13: 8,227,883 km (0.067 R)
• M14: 9,059,647 km (0.1 R)
• M15: 10,474,843 km (0.049 R)
• M16: 11,087,147 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.2

Radius: 9.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.62 AU - 2.66 AU

Year: 2054 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,122,732 km

• M1: 123,119 km (0.082 R)
• M2: 798,853 km (0.085 R)
• M3: 1,120,488 km (0.064 R)
• M4: 1,530,536 km (0.036 R)
• M5: 1,861,746 km (0.055 R)
• M6: 2,421,092 km (0.092 R)
• M7: 2,954,259 km (0.088 R)
• M8: 3,385,849 km (0.089 R)
• M9: 4,187,843 km (0.08 R)
• M10: 5,208,848 km (0.098 R)
• M11: 5,841,348 km (0.101 R)
• M12: 6,209,508 km (0.079 R)
• M13: 7,112,930 km (0.089 R)
• M14: 7,891,736 km (0.098 R)
• M15: 9,036,160 km (0.098 R)
• M16: 10,102,344 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 14

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.89 AU - 3.47 AU

Year: 3720 Days

Day: 10.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,122,732 km

• M1: 174,132 km (0.094 R)
• M2: 1,006,195 km (0.096 R)
• M3: 3,088,897 km (0.104 R)
• M4: 3,933,078 km (0.115 R)
• M5: 4,515,013 km (0.086 R)
• M6: 5,283,797 km (0.109 R)
• M7: 7,051,296 km (0.096 R)
• M8: 8,018,147 km (0.077 R)
• M9: 8,920,970 km (0.102 R)
• M10: 9,416,737 km (0.083 R)
• M11: 10,800,966 km (0.085 R)
• M12: 12,363,666 km (0.102 R)
• M13: 16,325,017 km (0.085 R)
• M14: 18,870,874 km (0.069 R)
• M15: 20,401,559 km (0.104 R)
• M16: 22,082,590 km (0.087 R)
• M17: 22,569,382 km (0.102 R)
• M18: 23,781,723 km (0.112 R)
• M19: 24,663,154 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 961.9

Radius: 6.5

Gravity: 22.77 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.5 AU - 7.44 AU

Year: 9569 Days

Day: 18.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 52,122,732 km

• M1: 81,082 km (0.109 R)
• M2: 426,653 km (0.041 R)
• M3: 903,721 km (0.109 R)
• M4: 1,128,118 km (0.116 R)
• M5: 1,707,510 km (0.084 R)
• M6: 1,968,110 km (0.115 R)
• M7: 2,199,388 km (0.041 R)
• M8: 2,428,871 km (0.085 R)
• M9: 3,615,332 km (0.085 R)
• M10: 4,335,047 km (0.09 R)
• M11: 5,080,643 km (0.07 R)
• M12: 5,800,358 km (0.106 R)
• M13: 6,203,525 km (0.081 R)
• M14: 6,863,102 km (0.097 R)
• M15: 7,872,588 km (0.059 R)
• M16: 8,551,762 km (0.049 R)
• M17: 10,078,109 km (0.117 R)
• M18: 10,878,159 km (0.115 R)
• M19: 12,127,301 km (0.118 R)
• M20: 16,734,915 km (0.086 R)
• M21: 17,476,173 km (0.076 R)
• M22: 18,944,326 km (0.067 R)
• M23: 19,830,843 km (0.032 R)
• M24: 21,084,025 km (0.108 R)
• M25: 21,948,252 km (0.115 R)
• M26: 24,211,817 km (0.063 R)
• M27: 24,493,510 km (0.087 R)
• M28: 26,926,570 km (0.111 R)
• M29: 27,229,056 km (0.118 R)
• M30: 33,182,453 km (0.105 R)
• M31: 37,140,963 km (0.068 R)
• M32: 46,557,251 km (0.084 R)
• M33: 47,284,895 km (0.118 R)
• M34: 48,912,520 km (0.112 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 12,466 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit