🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.47 AU - 0.71 AU

Year: 293 Days

Day: 35.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,454,656 km

• M1: 40,092 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.9

Radius: 10.6

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.7 AU - 0.82 AU

Year: 428 Days

Day: 6.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,454,656 km

• M1: 131,796 km (0.034 R)
• M2: 465,997 km (0.106 R)
• M3: 911,649 km (0.077 R)
• M4: 1,324,988 km (0.104 R)
• M5: 1,902,735 km (0.075 R)
• M6: 2,237,685 km (0.111 R)
• M7: 3,196,607 km (0.119 R)
• M8: 3,550,705 km (0.116 R)
• M9: 4,091,053 km (0.045 R)
• M10: 4,957,374 km (0.116 R)
• M11: 5,500,115 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.3

Radius: 14.6

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.6 AU - 2.24 AU

Year: 1718 Days

Day: 13.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,454,656 km

• M1: 181,612 km (0.119 R)
• M2: 807,978 km (0.113 R)
• M3: 1,575,714 km (0.082 R)
• M4: 2,191,908 km (0.105 R)
• M5: 3,801,431 km (0.107 R)
• M6: 4,516,360 km (0.094 R)
• M7: 4,987,443 km (0.115 R)
• M8: 6,383,640 km (0.056 R)
• M9: 7,970,724 km (0.08 R)
• M10: 9,023,594 km (0.104 R)
• M11: 9,970,249 km (0.106 R)
• M12: 10,569,389 km (0.079 R)
• M13: 11,122,003 km (0.102 R)
• M14: 11,876,725 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249

Radius: 8.4

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.88 AU - 2.84 AU

Year: 2341 Days

Day: 10.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,454,656 km

• M1: 106,514 km (0.103 R)
• M2: 488,437 km (0.093 R)
• M3: 789,578 km (0.053 R)
• M4: 1,093,860 km (0.097 R)
• M5: 2,111,574 km (0.118 R)
• M6: 3,029,955 km (0.113 R)
• M7: 3,327,356 km (0.105 R)
• M8: 3,759,694 km (0.075 R)
• M9: 6,221,027 km (0.11 R)
• M10: 8,446,445 km (0.111 R)
• M11: 12,801,090 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.5

Radius: 8.8

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.46 AU - 2.52 AU

Year: 2537 Days

Day: 6.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,454,656 km

• M1: 111,151 km (0.098 R)
• M2: 516,412 km (0.115 R)
• M3: 934,239 km (0.117 R)
• M4: 1,279,211 km (0.036 R)
• M5: 2,077,017 km (0.094 R)
• M6: 2,526,409 km (0.079 R)
• M7: 2,876,917 km (0.093 R)
• M8: 3,849,303 km (0.088 R)
• M9: 4,336,543 km (0.112 R)
• M10: 4,933,139 km (0.071 R)
• M11: 5,710,151 km (0.11 R)
• M12: 6,262,765 km (0.025 R)
• M13: 7,474,807 km (0.104 R)
• M14: 7,848,203 km (0.109 R)
• M15: 8,870,705 km (0.115 R)
• M16: 9,467,900 km (0.087 R)
• M17: 10,742,324 km (0.095 R)
• M18: 13,766,295 km (0.059 R)
• M19: 15,497,591 km (0.09 R)
• M20: 16,105,557 km (0.114 R)
• M21: 17,207,794 km (0.092 R)
• M22: 17,640,731 km (0.082 R)
• M23: 17,970,145 km (0.061 R)
• M24: 19,561,866 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.2

Radius: 11.6

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.72 AU - 4.5 AU

Year: 5380 Days

Day: 11.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,454,656 km

• M1: 144,362 km (0.101 R)
• M2: 566,677 km (0.12 R)
• M3: 947,703 km (0.09 R)
• M4: 1,586,934 km (0.062 R)
• M5: 1,998,628 km (0.053 R)
• M6: 2,404,038 km (0.042 R)
• M7: 2,847,296 km (0.071 R)
• M8: 3,835,390 km (0.111 R)
• M9: 4,303,632 km (0.07 R)
• M10: 5,971,648 km (0.1 R)
• M11: 8,654,536 km (0.104 R)
• M12: 9,583,539 km (0.116 R)
• M13: 10,407,524 km (0.041 R)
• M14: 11,367,793 km (0.11 R)
• M15: 11,962,444 km (0.074 R)
• M16: 12,625,761 km (0.086 R)
• M17: 13,263,646 km (0.099 R)
• M18: 13,717,826 km (0.108 R)
• M19: 14,392,063 km (0.054 R)
• M20: 16,089,101 km (0.084 R)
• M21: 16,722,200 km (0.09 R)
• M22: 17,491,731 km (0.085 R)
• M23: 20,472,319 km (0.109 R)
• M24: 22,757,127 km (0.089 R)
• M25: 24,296,789 km (0.073 R)
• M26: 25,826,576 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.9

Radius: 3.8

Gravity: 48.19 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 8.61 AU - 13.17 AU

Year: 23204 Days

Day: 20.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 84,454,656 km

• M1: 47,273 km (0.117 R)
• M2: 259,552 km (0.117 R)
• M3: 399,576 km (0.057 R)
• M4: 531,372 km (0.109 R)
• M5: 1,783,655 km (0.099 R)
• M6: 2,489,608 km (0.071 R)
• M7: 3,080,669 km (0.071 R)
• M8: 3,791,708 km (0.058 R)
• M9: 4,462,953 km (0.107 R)
• M10: 4,606,118 km (0.091 R)
• M11: 6,526,806 km (0.111 R)
• M12: 7,237,395 km (0.073 R)
• M13: 9,150,603 km (0.078 R)
• M14: 10,038,616 km (0.059 R)
• M15: 10,853,475 km (0.086 R)
• M16: 11,576,482 km (0.117 R)
• M17: 13,264,694 km (0.069 R)
• M18: 16,516,203 km (0.094 R)
• M19: 20,654,529 km (0.116 R)
• M20: 21,253,669 km (0.097 R)
• M21: 25,776,461 km (0.056 R)
• M22: 26,587,581 km (0.094 R)
• M23: 27,655,410 km (0.076 R)
• M24: 30,900,338 km (0.061 R)
• M25: 31,030,039 km (0.076 R)
• M26: 33,153,731 km (0.077 R)
• M27: 34,668,858 km (0.118 R)
• M28: 35,372,566 km (0.067 R)
• M29: 36,662,997 km (0.106 R)
• M30: 38,732,385 km (0.107 R)
• M31: 39,185,666 km (0.077 R)
• M32: 43,751,842 km (0.073 R)
• M33: 52,067,090 km (0.093 R)
• M34: 57,372,728 km (0.082 R)
• M35: 59,351,459 km (0.094 R)
• M36: 71,732,628 km (0.066 R)
• M37: 80,467,647 km (0.094 R)
• M38: 80,958,927 km (0.118 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 13,290 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit