🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.3

Radius: 8.4

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.69 AU - 1.01 AU

Year: 532 Days

Day: 6.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,546,669 km

• M1: 104,569 km (0.104 R)
• M2: 443,857 km (0.071 R)
• M3: 737,667 km (0.104 R)
• M4: 1,135,897 km (0.036 R)
• M5: 1,605,335 km (0.105 R)
• M6: 2,045,003 km (0.052 R)
• M7: 2,743,326 km (0.106 R)
• M8: 3,488,323 km (0.096 R)
• M9: 4,185,150 km (0.117 R)
• M10: 4,497,660 km (0.096 R)
• M11: 5,254,326 km (0.073 R)
• M12: 5,726,008 km (0.117 R)
• M13: 6,456,644 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.8

Radius: 13.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.78 AU - 0.94 AU

Year: 541 Days

Day: 6.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,546,669 km

• M1: 172,935 km (0.084 R)
• M2: 616,194 km (0.094 R)
• M3: 1,282,353 km (0.075 R)
• M4: 1,741,918 km (0.097 R)
• M5: 2,371,276 km (0.078 R)
• M6: 2,997,642 km (0.117 R)
• M7: 3,626,552 km (0.101 R)
• M8: 4,524,139 km (0.1 R)
• M9: 5,269,435 km (0.061 R)
• M10: 5,927,217 km (0.091 R)
• M11: 7,026,911 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.5

Radius: 12.3

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.81 AU - 0.91 AU

Year: 541 Days

Day: 12.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,546,669 km

• M1: 153,039 km (0.036 R)
• M2: 583,581 km (0.056 R)
• M3: 1,020,706 km (0.104 R)
• M4: 1,649,765 km (0.064 R)
• M5: 2,436,501 km (0.077 R)
• M6: 2,901,451 km (0.071 R)
• M7: 4,444,553 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.6

Radius: 11.9

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.89 AU - 1.13 AU

Year: 688 Days

Day: 9.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,546,669 km

• M1: 148,102 km (0.064 R)
• M2: 936,483 km (0.095 R)
• M3: 1,389,914 km (0.072 R)
• M4: 2,180,239 km (0.066 R)
• M5: 2,576,375 km (0.089 R)
• M6: 3,757,151 km (0.079 R)
• M7: 4,242,296 km (0.099 R)
• M8: 4,688,846 km (0.075 R)
• M9: 6,964,828 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93

Radius: 13.9

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.04 AU - 1.08 AU

Year: 740 Days

Day: 14.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,546,669 km

• M1: 172,935 km (0.081 R)
• M2: 633,996 km (0.078 R)
• M3: 1,171,501 km (0.041 R)
• M4: 2,039,917 km (0.107 R)
• M5: 2,514,441 km (0.076 R)
• M6: 3,932,030 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605

Radius: 11.6

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.68 AU - 2.7 AU

Year: 2198 Days

Day: 14.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,546,669 km

• M1: 144,212 km (0.095 R)
• M2: 516,711 km (0.116 R)
• M3: 880,982 km (0.092 R)
• M4: 1,272,180 km (0.076 R)
• M5: 1,739,674 km (0.114 R)
• M6: 2,334,176 km (0.059 R)
• M7: 2,715,800 km (0.1 R)
• M8: 3,123,454 km (0.098 R)
• M9: 4,179,017 km (0.067 R)
• M10: 4,558,995 km (0.062 R)
• M11: 5,505,202 km (0.116 R)
• M12: 6,265,308 km (0.12 R)
• M13: 6,711,110 km (0.088 R)
• M14: 10,929,321 km (0.081 R)
• M15: 11,654,871 km (0.078 R)
• M16: 14,337,011 km (0.1 R)
• M17: 16,111,242 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.3

Radius: 5.7

Gravity: 20.48 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.77 AU - 6.89 AU

Year: 10802 Days

Day: 19.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 100.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 47,546,669 km

• M1: 74,051 km (0.106 R)
• M2: 381,774 km (0.087 R)
• M3: 646,861 km (0.039 R)
• M4: 841,338 km (0.112 R)
• M5: 1,020,706 km (0.106 R)
• M6: 1,378,245 km (0.104 R)
• M7: 2,014,934 km (0.094 R)
• M8: 2,284,659 km (0.094 R)
• M9: 2,477,640 km (0.094 R)
• M10: 2,918,654 km (0.068 R)
• M11: 3,361,464 km (0.035 R)
• M12: 3,611,891 km (0.114 R)
• M13: 3,983,343 km (0.119 R)
• M14: 4,991,782 km (0.076 R)
• M15: 6,383,940 km (0.065 R)
• M16: 7,627,098 km (0.053 R)
• M17: 8,104,614 km (0.107 R)
• M18: 8,328,263 km (0.102 R)
• M19: 8,510,024 km (0.106 R)
• M20: 8,976,171 km (0.113 R)
• M21: 10,796,030 km (0.085 R)
• M22: 11,735,355 km (0.092 R)
• M23: 12,371,445 km (0.066 R)
• M24: 15,147,084 km (0.09 R)
• M25: 15,761,931 km (0.102 R)
• M26: 16,393,234 km (0.102 R)
• M27: 19,724,180 km (0.064 R)
• M28: 23,209,960 km (0.115 R)
• M29: 29,332,702 km (0.1 R)
• M30: 29,648,353 km (0.074 R)
• M31: 31,152,111 km (0.112 R)
• M32: 35,607,734 km (0.104 R)
• M33: 36,449,970 km (0.061 R)
• M34: 40,861,312 km (0.06 R)
• M35: 43,535,374 km (0.06 R)
• M36: 46,039,642 km (0.12 R)
• M37: 48,198,489 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922.1

Radius: 3.6

Gravity: 71.15 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.87 AU - 9.21 AU

Year: 14043 Days

Day: 18.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,546,669 km

• M1: 44,879 km (0.11 R)
• M2: 331,958 km (0.105 R)
• M3: 2,342,553 km (0.108 R)
• M4: 2,791,945 km (0.084 R)
• M5: 3,377,022 km (0.057 R)
• M6: 4,101,375 km (0.093 R)
• M7: 6,542,663 km (0.062 R)
• M8: 6,670,270 km (0.045 R)
• M9: 9,478,371 km (0.082 R)
• M10: 11,943,595 km (0.099 R)
• M11: 17,512,675 km (0.083 R)
• M12: 19,026,007 km (0.065 R)
• M13: 20,171,627 km (0.089 R)
• M14: 21,176,327 km (0.099 R)
• M15: 25,424,009 km (0.069 R)
• M16: 26,920,735 km (0.116 R)
• M17: 34,002,549 km (0.077 R)
• M18: 36,346,598 km (0.098 R)
• M19: 47,752,837 km (0.079 R)
• M20: 52,536,827 km (0.069 R)
• M21: 53,220,789 km (0.069 R)
• M22: 56,015,875 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.2

Radius: 7.1

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.51 AU - 10.01 AU

Year: 17585 Days

Day: 23.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,546,669 km

• M1: 88,712 km (0.096 R)
• M2: 408,701 km (0.072 R)
• M3: 712,086 km (0.079 R)
• M4: 981,512 km (0.084 R)
• M5: 1,434,793 km (0.095 R)
• M6: 3,240,888 km (0.12 R)
• M7: 3,835,241 km (0.038 R)
• M8: 4,558,696 km (0.074 R)
• M9: 5,142,427 km (0.088 R)
• M10: 5,879,346 km (0.077 R)
• M11: 6,127,978 km (0.088 R)
• M12: 9,492,434 km (0.04 R)
• M13: 13,121,528 km (0.102 R)
• M14: 15,142,745 km (0.12 R)
• M15: 15,814,739 km (0.095 R)
• M16: 17,290,372 km (0.044 R)
• M17: 18,173,598 km (0.056 R)
• M18: 19,554,386 km (0.118 R)
• M19: 32,761,784 km (0.118 R)
• M20: 33,544,929 km (0.111 R)
• M21: 37,649,446 km (0.092 R)
• M22: 38,138,780 km (0.083 R)
• M23: 45,029,707 km (0.096 R)
• M24: 45,719,802 km (0.101 R)
• M25: 46,137,180 km (0.062 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 14,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit