🌌 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 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.4

Radius: 11.4

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.53 AU - 0.69 AU

Year: 318 Days

Day: 12.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 48,463,781 km

• M1: 141,819 km (0.113 R)
• M2: 582,833 km (0.064 R)
• M3: 1,110,615 km (0.033 R)
• M4: 1,725,163 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.2

Radius: 10.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.05 AU - 1.67 AU

Year: 1058 Days

Day: 8.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,463,781 km

• M1: 133,142 km (0.093 R)
• M2: 490,681 km (0.07 R)
• M3: 939,475 km (0.084 R)
• M4: 1,597,705 km (0.109 R)
• M5: 2,082,402 km (0.115 R)
• M6: 2,618,860 km (0.05 R)
• M7: 3,417,414 km (0.056 R)
• M8: 3,925,598 km (0.093 R)
• M9: 4,307,521 km (0.071 R)
• M10: 4,936,131 km (0.118 R)
• M11: 5,549,333 km (0.099 R)
• M12: 6,091,775 km (0.114 R)
• M13: 6,438,244 km (0.102 R)
• M14: 6,819,419 km (0.105 R)
• M15: 7,238,143 km (0.106 R)
• M16: 7,580,722 km (0.111 R)
• M17: 7,934,222 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.4

Radius: 12

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.41 AU - 2.05 AU

Year: 1517 Days

Day: 7.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,463,781 km

• M1: 149,299 km (0.115 R)
• M2: 572,212 km (0.119 R)
• M3: 1,175,540 km (0.057 R)
• M4: 1,576,762 km (0.097 R)
• M5: 1,953,748 km (0.119 R)
• M6: 2,616,018 km (0.063 R)
• M7: 3,166,389 km (0.084 R)
• M8: 3,629,095 km (0.106 R)
• M9: 4,172,285 km (0.056 R)
• M10: 4,691,539 km (0.083 R)
• M11: 5,232,934 km (0.05 R)
• M12: 6,042,258 km (0.065 R)
• M13: 6,857,866 km (0.07 R)
• M14: 7,344,807 km (0.095 R)
• M15: 9,096,598 km (0.101 R)
• M16: 10,200,630 km (0.103 R)
• M17: 12,560,536 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.4

Radius: 12.6

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.65 AU - 2.49 AU

Year: 1986 Days

Day: 11 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,463,781 km

• M1: 156,779 km (0.101 R)
• M2: 615,146 km (0.119 R)
• M3: 1,111,363 km (0.066 R)
• M4: 1,513,631 km (0.079 R)
• M5: 2,627,836 km (0.111 R)
• M6: 3,081,716 km (0.112 R)
• M7: 3,534,848 km (0.092 R)
• M8: 4,812,264 km (0.112 R)
• M9: 5,497,123 km (0.07 R)
• M10: 6,142,189 km (0.089 R)
• M11: 6,590,983 km (0.102 R)
• M12: 7,033,344 km (0.106 R)
• M13: 8,480,853 km (0.08 R)
• M14: 9,516,070 km (0.104 R)
• M15: 10,374,014 km (0.119 R)
• M16: 10,897,906 km (0.111 R)
• M17: 12,244,137 km (0.109 R)
• M18: 13,477,422 km (0.095 R)
• M19: 16,591,152 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.8

Radius: 9.6

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.12 AU - 4.24 AU

Year: 4708 Days

Day: 14.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,463,781 km

• M1: 119,828 km (0.095 R)
• M2: 512,822 km (0.085 R)
• M3: 1,061,098 km (0.062 R)
• M4: 1,441,375 km (0.107 R)
• M5: 2,484,073 km (0.091 R)
• M6: 3,561,626 km (0.075 R)
• M7: 4,157,026 km (0.101 R)
• M8: 5,516,870 km (0.086 R)
• M9: 5,906,573 km (0.05 R)
• M10: 6,707,819 km (0.061 R)
• M11: 7,152,274 km (0.111 R)
• M12: 7,579,825 km (0.109 R)
• M13: 9,421,076 km (0.086 R)
• M14: 10,926,628 km (0.061 R)
• M15: 11,446,481 km (0.098 R)
• M16: 12,231,870 km (0.03 R)
• M17: 13,105,372 km (0.101 R)
• M18: 13,423,267 km (0.052 R)
• M19: 18,834,671 km (0.084 R)
• M20: 29,339,134 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.5

Radius: 6

Gravity: 18.04 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.83 AU - 7.63 AU

Year: 11643 Days

Day: 18.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,463,781 km

• M1: 74,799 km (0.117 R)
• M2: 716,125 km (0.094 R)
• M3: 1,229,246 km (0.05 R)
• M4: 3,209,323 km (0.108 R)
• M5: 4,629,605 km (0.096 R)
• M6: 5,443,268 km (0.104 R)
• M7: 7,822,323 km (0.106 R)
• M8: 11,828,853 km (0.036 R)
• M9: 14,498,577 km (0.093 R)
• M10: 15,378,661 km (0.088 R)
• M11: 16,222,244 km (0.119 R)
• M12: 18,232,240 km (0.114 R)
• M13: 20,738,154 km (0.07 R)
• M14: 26,819,457 km (0.081 R)
• M15: 38,648,012 km (0.029 R)
• M16: 42,612,654 km (0.063 R)
• M17: 45,116,923 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 325.4

Radius: 7.1

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 6.53 AU - 9.87 AU

Year: 15659 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,463,781 km

• M1: 91,554 km (0.107 R)
• M2: 490,980 km (0.111 R)
• M3: 1,057,358 km (0.049 R)
• M4: 1,434,045 km (0.099 R)
• M5: 1,722,619 km (0.092 R)
• M6: 3,028,908 km (0.099 R)
• M7: 3,532,754 km (0.068 R)
• M8: 4,737,316 km (0.082 R)
• M9: 6,157,448 km (0.088 R)
• M10: 6,457,093 km (0.114 R)
• M11: 8,788,127 km (0.117 R)
• M12: 9,911,009 km (0.068 R)
• M13: 12,203,147 km (0.117 R)
• M14: 16,483,441 km (0.034 R)
• M15: 17,654,045 km (0.114 R)
• M16: 18,722,922 km (0.114 R)
• M17: 19,194,005 km (0.086 R)
• M18: 27,341,704 km (0.066 R)
• M19: 34,866,327 km (0.08 R)
• M20: 39,290,684 km (0.064 R)
• M21: 39,546,796 km (0.095 R)
• M22: 39,804,253 km (0.066 R)
• M23: 44,908,533 km (0.115 R)
• M24: 47,037,909 km (0.051 R)
• M25: 49,085,305 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.6

Radius: 5

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.9 AU - 11.04 AU

Year: 17915 Days

Day: 21.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,463,781 km

• M1: 105,018 km (0.095 R)
• M2: 330,611 km (0.07 R)
• M3: 529,876 km (0.091 R)
• M4: 723,007 km (0.104 R)
• M5: 922,720 km (0.078 R)
• M6: 2,015,383 km (0.108 R)
• M7: 5,249,539 km (0.068 R)
• M8: 5,791,532 km (0.086 R)
• M9: 6,750,754 km (0.1 R)
• M10: 9,025,838 km (0.025 R)
• M11: 10,104,289 km (0.106 R)
• M12: 13,914,248 km (0.109 R)
• M13: 21,731,484 km (0.053 R)
• M14: 22,592,420 km (0.108 R)
• M15: 31,388,476 km (0.107 R)
• M16: 32,487,422 km (0.119 R)
• M17: 39,246,104 km (0.093 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: 178 - 15,451 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit