🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.4

Radius: 9.7

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.53 AU - 0.53 AU

Year: 266 Days

Day: 9 Hours

Environment

Temp: -135 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,747,444 km

• M1: 120,576 km (0.113 R)
• M2: 480,359 km (0.087 R)
• M3: 815,907 km (0.078 R)
• M4: 1,130,960 km (0.107 R)
• M5: 1,612,216 km (0.101 R)
• M6: 1,963,622 km (0.062 R)
• M7: 2,382,196 km (0.111 R)
• M8: 2,708,469 km (0.112 R)
• M9: 3,074,236 km (0.096 R)
• M10: 3,390,337 km (0.1 R)
• M11: 3,805,321 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.5

Radius: 13.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.76 AU - 0.76 AU

Year: 457 Days

Day: 11.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 20,747,444 km

• M1: 169,195 km (0.117 R)
• M2: 635,342 km (0.095 R)
• M3: 1,487,452 km (0.055 R)
• M4: 1,941,032 km (0.115 R)
• M5: 2,716,548 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.7

Radius: 9.2

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.78 AU - 0.96 AU

Year: 560 Days

Day: 7.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,747,444 km

• M1: 114,442 km (0.114 R)
• M2: 542,741 km (0.06 R)
• M3: 902,075 km (0.107 R)
• M4: 1,362,238 km (0.039 R)
• M5: 1,708,258 km (0.116 R)
• M6: 2,027,201 km (0.08 R)
• M7: 3,158,909 km (0.035 R)
• M8: 4,077,140 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.1

Radius: 8.9

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.16 AU - 1.38 AU

Year: 988 Days

Day: 14.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,747,444 km

• M1: 110,702 km (0.032 R)
• M2: 400,773 km (0.093 R)
• M3: 845,677 km (0.072 R)
• M4: 1,482,066 km (0.059 R)
• M5: 1,822,102 km (0.115 R)
• M6: 2,141,643 km (0.086 R)
• M7: 2,770,702 km (0.105 R)
• M8: 3,489,071 km (0.102 R)
• M9: 4,113,493 km (0.088 R)
• M10: 4,444,104 km (0.072 R)
• M11: 4,739,111 km (0.079 R)
• M12: 5,028,583 km (0.096 R)
• M13: 5,603,637 km (0.119 R)
• M14: 7,069,247 km (0.038 R)
• M15: 7,766,224 km (0.111 R)
• M16: 8,403,212 km (0.049 R)
• M17: 9,437,531 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.7

Radius: 11.3

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.3 AU - 2.52 AU

Year: 2582 Days

Day: 5.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,747,444 km

• M1: 140,472 km (0.097 R)
• M2: 499,507 km (0.062 R)
• M3: 1,165,667 km (0.072 R)
• M4: 2,136,856 km (0.081 R)
• M5: 2,823,211 km (0.051 R)
• M6: 3,600,372 km (0.096 R)
• M7: 4,094,793 km (0.085 R)
• M8: 4,455,773 km (0.056 R)
• M9: 5,397,042 km (0.109 R)
• M10: 5,808,736 km (0.111 R)
• M11: 6,516,483 km (0.051 R)
• M12: 7,064,311 km (0.099 R)
• M13: 7,642,506 km (0.055 R)
• M14: 8,251,968 km (0.039 R)
• M15: 10,346,189 km (0.039 R)
• M16: 11,056,330 km (0.068 R)
• M17: 11,760,786 km (0.114 R)
• M18: 12,732,873 km (0.063 R)
• M19: 14,054,570 km (0.041 R)
• M20: 14,925,679 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185

Radius: 8.3

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.34 AU - 3.44 AU

Year: 4308 Days

Day: 5.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,747,444 km

• M1: 103,223 km (0.086 R)
• M2: 408,552 km (0.063 R)
• M3: 711,936 km (0.107 R)
• M4: 1,169,706 km (0.12 R)
• M5: 1,802,355 km (0.115 R)
• M6: 3,123,304 km (0.114 R)
• M7: 4,071,904 km (0.098 R)
• M8: 4,372,447 km (0.112 R)
• M9: 7,575,337 km (0.069 R)
• M10: 9,475,679 km (0.104 R)
• M11: 15,263,321 km (0.066 R)
• M12: 16,895,135 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.2

Radius: 5.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.53 AU - 7.05 AU

Year: 9617 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,747,444 km

• M1: 68,067 km (0.047 R)
• M2: 591,809 km (0.053 R)
• M3: 786,885 km (0.115 R)
• M4: 1,293,124 km (0.077 R)
• M5: 1,776,924 km (0.053 R)
• M6: 1,982,321 km (0.102 R)
• M7: 3,915,126 km (0.086 R)
• M8: 4,106,761 km (0.099 R)
• M9: 4,592,655 km (0.103 R)
• M10: 5,207,053 km (0.083 R)
• M11: 6,075,469 km (0.075 R)
• M12: 6,254,837 km (0.076 R)
• M13: 9,770,237 km (0.109 R)
• M14: 10,559,515 km (0.105 R)
• M15: 10,819,367 km (0.108 R)
• M16: 13,439,723 km (0.059 R)
• M17: 15,105,645 km (0.068 R)
• M18: 16,012,507 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.5

Radius: 4

Gravity: 41.59 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.94 AU - 7.64 AU

Year: 10889 Days

Day: 24.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 20,747,444 km

• M1: 49,816 km (0.062 R)
• M2: 251,474 km (0.096 R)
• M3: 422,016 km (0.102 R)
• M4: 555,606 km (0.11 R)
• M5: 701,165 km (0.113 R)
• M6: 901,776 km (0.119 R)
• M7: 1,211,743 km (0.08 R)
• M8: 1,603,839 km (0.087 R)
• M9: 3,822,076 km (0.105 R)
• M10: 4,012,963 km (0.116 R)
• M11: 4,354,944 km (0.09 R)
• M12: 6,476,241 km (0.099 R)
• M13: 8,130,943 km (0.112 R)
• M14: 10,306,844 km (0.041 R)
• M15: 12,013,158 km (0.06 R)
• M16: 12,661,365 km (0.083 R)
• M17: 15,763,876 km (0.099 R)
• M18: 17,489,786 km (0.119 R)
• M19: 22,699,682 km (0.059 R)
• M20: 30,660,084 km (0.087 R)
• M21: 34,962,369 km (0.066 R)
• M22: 38,630,209 km (0.113 R)
• M23: 38,883,479 km (0.116 R)
• M24: 40,818,377 km (0.092 R)
• M25: 42,277,405 km (0.063 R)
• M26: 43,496,628 km (0.046 R)
• M27: 43,770,841 km (0.063 R)
• M28: 49,796,643 km (0.118 R)
• M29: 49,946,540 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.3

Radius: 3.5

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.69 AU - 7.43 AU

Year: 11598 Days

Day: 15.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,747,444 km

• M1: 64,177 km (0.082 R)
• M2: 374,892 km (0.084 R)
• M3: 591,360 km (0.112 R)
• M4: 767,437 km (0.11 R)
• M5: 1,001,408 km (0.114 R)
• M6: 1,678,189 km (0.103 R)
• M7: 1,868,029 km (0.115 R)
• M8: 2,071,931 km (0.047 R)
• M9: 4,471,032 km (0.069 R)
• M10: 5,573,269 km (0.117 R)
• M11: 9,204,009 km (0.045 R)
• M12: 11,046,456 km (0.095 R)
• M13: 13,258,410 km (0.103 R)
• M14: 14,491,995 km (0.119 R)
• M15: 14,639,199 km (0.058 R)
• M16: 16,536,249 km (0.032 R)
• M17: 16,858,483 km (0.078 R)
• M18: 17,963,264 km (0.114 R)
• M19: 19,470,312 km (0.098 R)
• M20: 19,709,370 km (0.106 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: 521 - 18,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit