🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.59 AU - 0.65 AU

Year: 320 Days

Day: 14.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.8

Radius: 11

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.85 AU - 1.37 AU

Year: 767 Days

Day: 12.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,296,451 km

• M1: 136,732 km (0.117 R)
• M2: 600,336 km (0.085 R)
• M3: 1,002,007 km (0.117 R)
• M4: 2,162,288 km (0.119 R)
• M5: 2,801,370 km (0.054 R)
• M6: 3,339,922 km (0.097 R)
• M7: 4,993,278 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.1

Radius: 11.1

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.03 AU - 1.51 AU

Year: 939 Days

Day: 7.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,296,451 km

• M1: 138,228 km (0.048 R)
• M2: 492,177 km (0.115 R)
• M3: 1,017,864 km (0.112 R)
• M4: 1,581,100 km (0.115 R)
• M5: 2,087,937 km (0.087 R)
• M6: 2,947,377 km (0.078 R)
• M7: 3,351,740 km (0.041 R)
• M8: 3,807,565 km (0.105 R)
• M9: 4,528,328 km (0.111 R)
• M10: 4,999,561 km (0.079 R)
• M11: 5,844,938 km (0.104 R)
• M12: 6,549,993 km (0.026 R)
• M13: 6,934,161 km (0.12 R)
• M14: 7,677,812 km (0.09 R)
• M15: 8,129,597 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177

Radius: 12.5

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.11 AU - 1.49 AU

Year: 972 Days

Day: 6.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,296,451 km

• M1: 157,377 km (0.083 R)
• M2: 549,623 km (0.083 R)
• M3: 1,036,264 km (0.114 R)
• M4: 1,543,700 km (0.068 R)
• M5: 2,216,143 km (0.101 R)
• M6: 2,760,530 km (0.056 R)
• M7: 3,333,041 km (0.11 R)
• M8: 3,797,093 km (0.053 R)
• M9: 4,779,054 km (0.048 R)
• M10: 6,012,937 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.2

Radius: 13.2

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.34 AU - 1.7 AU

Year: 1229 Days

Day: 13.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,296,451 km

• M1: 164,258 km (0.099 R)
• M2: 729,738 km (0.101 R)
• M3: 1,239,418 km (0.109 R)
• M4: 1,898,098 km (0.066 R)
• M5: 2,456,995 km (0.06 R)
• M6: 2,889,483 km (0.111 R)
• M7: 4,807,926 km (0.12 R)
• M8: 5,837,758 km (0.062 R)
• M9: 6,322,156 km (0.113 R)
• M10: 7,099,017 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.9

Radius: 13.4

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.36 AU - 3.8 AU

Year: 3546 Days

Day: 10.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,296,451 km

• M1: 169,644 km (0.107 R)
• M2: 1,086,679 km (0.099 R)
• M3: 2,001,620 km (0.08 R)
• M4: 2,468,664 km (0.086 R)
• M5: 4,286,727 km (0.091 R)
• M6: 5,097,697 km (0.114 R)
• M7: 6,259,923 km (0.096 R)
• M8: 8,815,503 km (0.105 R)
• M9: 9,971,446 km (0.073 R)
• M10: 11,695,562 km (0.043 R)
• M11: 12,402,112 km (0.102 R)
• M12: 12,950,688 km (0.044 R)
• M13: 18,229,847 km (0.1 R)
• M14: 21,115,590 km (0.12 R)
• M15: 22,364,433 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.4

Radius: 10.1

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.07 AU - 3.35 AU

Year: 3773 Days

Day: 7.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,296,451 km

• M1: 125,662 km (0.1 R)
• M2: 585,227 km (0.105 R)
• M3: 975,229 km (0.107 R)
• M4: 1,380,639 km (0.115 R)
• M5: 1,760,468 km (0.095 R)
• M6: 2,153,461 km (0.111 R)
• M7: 2,525,362 km (0.074 R)
• M8: 2,940,197 km (0.095 R)
• M9: 4,304,230 km (0.107 R)
• M10: 5,152,151 km (0.076 R)
• M11: 6,431,212 km (0.093 R)
• M12: 6,890,927 km (0.12 R)
• M13: 8,049,413 km (0.104 R)
• M14: 9,256,219 km (0.062 R)
• M15: 9,842,942 km (0.097 R)
• M16: 11,934,021 km (0.106 R)
• M17: 12,962,955 km (0.105 R)
• M18: 13,400,528 km (0.09 R)
• M19: 13,847,976 km (0.038 R)
• M20: 15,958,502 km (0.106 R)
• M21: 16,688,241 km (0.061 R)
• M22: 17,032,466 km (0.119 R)
• M23: 18,214,289 km (0.077 R)
• M24: 20,412,929 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.6

Radius: 4.9

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.41 AU - 8.43 AU

Year: 13259 Days

Day: 16.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,296,451 km

• M1: 61,186 km (0.087 R)
• M2: 232,924 km (0.111 R)
• M3: 393,143 km (0.099 R)
• M4: 729,738 km (0.096 R)
• M5: 1,104,780 km (0.047 R)
• M6: 1,299,407 km (0.094 R)
• M7: 1,503,309 km (0.113 R)
• M8: 2,599,861 km (0.078 R)
• M9: 3,098,022 km (0.09 R)
• M10: 5,738,574 km (0.034 R)
• M11: 6,541,915 km (0.12 R)
• M12: 7,066,106 km (0.027 R)
• M13: 8,455,272 km (0.096 R)
• M14: 9,167,956 km (0.074 R)
• M15: 9,633,355 km (0.049 R)
• M16: 10,016,924 km (0.097 R)
• M17: 12,591,204 km (0.103 R)
• M18: 12,991,677 km (0.105 R)
• M19: 16,506,928 km (0.091 R)
• M20: 16,711,279 km (0.104 R)
• M21: 19,753,800 km (0.108 R)
• M22: 20,294,298 km (0.037 R)
• M23: 21,729,540 km (0.058 R)
• M24: 23,920,101 km (0.105 R)
• M25: 26,253,529 km (0.093 R)
• M26: 29,228,731 km (0.057 R)
• M27: 30,745,803 km (0.082 R)
• M28: 31,159,142 km (0.109 R)
• M29: 31,367,083 km (0.1 R)
• M30: 33,389,646 km (0.061 R)
• M31: 35,838,264 km (0.089 R)
• M32: 37,928,745 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.9

Radius: 5.2

Gravity: 25.74 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 9.91 AU - 11.09 AU

Year: 22320 Days

Day: 21.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,296,451 km

• M1: 64,776 km (0.059 R)
• M2: 229,184 km (0.086 R)
• M3: 560,394 km (0.083 R)
• M4: 904,918 km (0.117 R)
• M5: 1,091,466 km (0.1 R)
• M6: 1,380,639 km (0.067 R)
• M7: 1,988,305 km (0.093 R)
• M8: 2,734,051 km (0.113 R)
• M9: 3,530,211 km (0.099 R)
• M10: 4,905,165 km (0.063 R)
• M11: 7,409,134 km (0.079 R)
• M12: 7,608,099 km (0.1 R)
• M13: 8,877,586 km (0.081 R)
• M14: 10,781,369 km (0.111 R)
• M15: 11,166,434 km (0.09 R)
• M16: 13,895,847 km (0.111 R)
• M17: 16,443,349 km (0.111 R)
• M18: 17,473,929 km (0.109 R)
• M19: 18,546,695 km (0.113 R)
• M20: 23,598,615 km (0.075 R)
• M21: 23,813,587 km (0.109 R)
• M22: 25,580,338 km (0.089 R)
• M23: 28,149,532 km (0.112 R)
• M24: 28,878,971 km (0.06 R)
• M25: 31,792,091 km (0.078 R)
• M26: 38,938,082 km (0.094 R)
• M27: 39,388,820 km (0.109 R)
• M28: 42,009,625 km (0.099 R)
• M29: 50,209,683 km (0.092 R)
• M30: 50,922,517 km (0.103 R)
• M31: 55,153,593 km (0.092 R)
• M32: 73,273,785 km (0.059 R)
• M33: 77,697,693 km (0.072 R)
• M34: 79,854,147 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 16,771 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit