🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.7

Radius: 12.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.55 AU - 0.77 AU

Year: 358 Days

Day: 14.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,972,284 km

• M1: 153,936 km (0.112 R)
• M2: 588,219 km (0.049 R)
• M3: 977,323 km (0.108 R)
• M4: 1,646,923 km (0.079 R)
• M5: 2,042,609 km (0.061 R)
• M6: 2,494,096 km (0.088 R)
• M7: 2,925,835 km (0.088 R)
• M8: 3,344,709 km (0.1 R)
• M9: 3,780,787 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.5

Radius: 13.7

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.67 AU - 0.81 AU

Year: 424 Days

Day: 8.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,972,284 km

• M1: 170,392 km (0.058 R)
• M2: 717,471 km (0.084 R)
• M3: 1,257,669 km (0.097 R)
• M4: 2,233,047 km (0.102 R)
• M5: 2,744,523 km (0.115 R)
• M6: 3,713,318 km (0.038 R)
• M7: 4,277,602 km (0.095 R)
• M8: 4,769,928 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960

Radius: 12.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.84 AU - 2.32 AU

Year: 2000 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,972,284 km

• M1: 155,432 km (0.075 R)
• M2: 1,914,703 km (0.1 R)
• M3: 2,361,851 km (0.113 R)
• M4: 3,760,292 km (0.106 R)
• M5: 4,835,602 km (0.105 R)
• M6: 5,244,303 km (0.035 R)
• M7: 6,777,232 km (0.114 R)
• M8: 8,989,336 km (0.107 R)
• M9: 9,400,132 km (0.077 R)
• M10: 9,895,301 km (0.109 R)
• M11: 13,373,302 km (0.101 R)
• M12: 14,413,904 km (0.06 R)
• M13: 15,802,173 km (0.044 R)
• M14: 16,605,214 km (0.095 R)
• M15: 17,382,674 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.1

Radius: 10.1

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.12 AU - 3.5 AU

Year: 3141 Days

Day: 14.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,972,284 km

• M1: 150,795 km (0.07 R)
• M2: 605,722 km (0.091 R)
• M3: 948,600 km (0.089 R)
• M4: 1,526,796 km (0.11 R)
• M5: 1,930,261 km (0.086 R)
• M6: 2,352,726 km (0.097 R)
• M7: 3,063,316 km (0.097 R)
• M8: 3,819,832 km (0.116 R)
• M9: 4,531,170 km (0.071 R)
• M10: 7,598,525 km (0.082 R)
• M11: 8,850,060 km (0.095 R)
• M12: 14,162,730 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.5

Radius: 8.7

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.7 AU - 3.88 AU

Year: 4920 Days

Day: 9.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,972,284 km

• M1: 108,159 km (0.083 R)
• M2: 387,758 km (0.113 R)
• M3: 826,827 km (0.097 R)
• M4: 1,239,718 km (0.101 R)
• M5: 1,557,314 km (0.044 R)
• M6: 3,659,912 km (0.117 R)
• M7: 4,116,036 km (0.103 R)
• M8: 4,536,855 km (0.12 R)
• M9: 4,833,058 km (0.084 R)
• M10: 5,437,284 km (0.069 R)
• M11: 6,002,615 km (0.113 R)
• M12: 7,217,648 km (0.045 R)
• M13: 7,691,425 km (0.096 R)
• M14: 8,222,049 km (0.11 R)
• M15: 8,514,812 km (0.097 R)
• M16: 9,044,089 km (0.113 R)
• M17: 9,919,685 km (0.078 R)
• M18: 11,382,752 km (0.105 R)
• M19: 11,885,551 km (0.107 R)
• M20: 12,213,021 km (0.099 R)
• M21: 13,787,987 km (0.058 R)
• M22: 14,306,643 km (0.07 R)
• M23: 15,383,299 km (0.108 R)
• M24: 17,395,689 km (0.053 R)
• M25: 17,940,375 km (0.089 R)
• M26: 20,166,990 km (0.115 R)
• M27: 22,429,209 km (0.097 R)
• M28: 22,930,062 km (0.094 R)
• M29: 23,511,549 km (0.104 R)
• M30: 23,953,910 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.6

Radius: 13

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.38 AU - 5.44 AU

Year: 6176 Days

Day: 11.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,972,284 km

• M1: 161,865 km (0.085 R)
• M2: 592,557 km (0.073 R)
• M3: 1,173,446 km (0.106 R)
• M4: 2,156,304 km (0.06 R)
• M5: 2,971,313 km (0.117 R)
• M6: 3,759,394 km (0.106 R)
• M7: 4,556,153 km (0.073 R)
• M8: 5,102,783 km (0.101 R)
• M9: 6,019,968 km (0.108 R)
• M10: 7,633,680 km (0.11 R)
• M11: 10,197,638 km (0.064 R)
• M12: 11,368,391 km (0.069 R)
• M13: 12,727,338 km (0.114 R)
• M14: 13,976,181 km (0.076 R)
• M15: 14,464,917 km (0.119 R)
• M16: 15,766,269 km (0.06 R)
• M17: 16,296,145 km (0.069 R)
• M18: 16,777,102 km (0.084 R)
• M19: 21,044,232 km (0.03 R)
• M20: 22,343,040 km (0.114 R)
• M21: 22,937,094 km (0.101 R)
• M22: 23,618,063 km (0.087 R)
• M23: 25,580,488 km (0.089 R)
• M24: 26,395,198 km (0.114 R)
• M25: 27,395,559 km (0.093 R)
• M26: 27,819,669 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.8

Radius: 11.2

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.96 AU - 5.22 AU

Year: 6558 Days

Day: 5.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,972,284 km

• M1: 139,425 km (0.061 R)
• M2: 556,205 km (0.057 R)
• M3: 1,156,840 km (0.038 R)
• M4: 1,951,803 km (0.115 R)
• M5: 2,470,609 km (0.104 R)
• M6: 3,160,554 km (0.09 R)
• M7: 4,241,997 km (0.106 R)
• M8: 4,759,755 km (0.088 R)
• M9: 6,981,134 km (0.115 R)
• M10: 7,855,085 km (0.109 R)
• M11: 9,048,427 km (0.094 R)
• M12: 10,042,206 km (0.117 R)
• M13: 11,692,270 km (0.113 R)
• M14: 16,944,203 km (0.108 R)
• M15: 18,383,933 km (0.112 R)
• M16: 20,548,764 km (0.059 R)
• M17: 22,108,471 km (0.079 R)
• M18: 24,228,123 km (0.096 R)
• M19: 27,172,957 km (0.086 R)
• M20: 29,325,072 km (0.092 R)
• M21: 30,537,114 km (0.07 R)
• M22: 33,561,833 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.9

Radius: 5.3

Gravity: 24.81 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.63 AU - 12.05 AU

Year: 22172 Days

Day: 24.4 Hours

Environment

Temp: -244 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,972,284 km

• M1: 65,973 km (0.074 R)
• M2: 781,948 km (0.054 R)
• M3: 1,330,374 km (0.072 R)
• M4: 2,826,053 km (0.077 R)
• M5: 7,529,560 km (0.048 R)
• M6: 9,067,576 km (0.091 R)
• M7: 9,468,049 km (0.092 R)
• M8: 10,677,249 km (0.097 R)
• M9: 15,637,017 km (0.073 R)
• M10: 19,304,558 km (0.104 R)
• M11: 22,249,392 km (0.111 R)
• M12: 23,936,258 km (0.115 R)
• M13: 37,313,449 km (0.074 R)
• M14: 45,061,422 km (0.107 R)
• M15: 50,366,611 km (0.108 R)
• M16: 54,187,640 km (0.026 R)
• M17: 62,196,063 km (0.108 R)
• M18: 63,637,737 km (0.112 R)
• M19: 72,531,480 km (0.072 R)
• M20: 79,539,542 km (0.097 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: 171 - 12,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit