🌌 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: 86.5

Radius: 14.1

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.53 AU - 0.53 AU

Year: 266 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,691,307 km

• M1: 176,376 km (0.061 R)
• M2: 622,327 km (0.119 R)
• M3: 1,109,867 km (0.099 R)
• M4: 1,749,248 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.3

Radius: 10

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.83 AU - 0.87 AU

Year: 541 Days

Day: 11.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,691,307 km

• M1: 124,316 km (0.095 R)
• M2: 504,594 km (0.106 R)
• M3: 1,022,501 km (0.099 R)
• M4: 1,357,002 km (0.099 R)
• M5: 1,801,607 km (0.076 R)
• M6: 2,222,426 km (0.094 R)
• M7: 2,613,176 km (0.106 R)
• M8: 2,987,469 km (0.079 R)
• M9: 3,699,406 km (0.11 R)
• M10: 4,371,250 km (0.08 R)
• M11: 4,800,745 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.9

Radius: 11.9

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.88 AU - 1 AU

Year: 629 Days

Day: 8.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,691,307 km

• M1: 148,102 km (0.099 R)
• M2: 591,809 km (0.119 R)
• M3: 985,850 km (0.099 R)
• M4: 1,361,341 km (0.118 R)
• M5: 1,765,704 km (0.119 R)
• M6: 2,990,761 km (0.045 R)
• M7: 3,517,345 km (0.04 R)
• M8: 4,043,481 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.3

Radius: 12.7

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.2 AU - 1.54 AU

Year: 1107 Days

Day: 13.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,691,307 km

• M1: 157,975 km (0.078 R)
• M2: 581,936 km (0.074 R)
• M3: 1,003,203 km (0.086 R)
• M4: 1,661,284 km (0.113 R)
• M5: 2,269,250 km (0.099 R)
• M6: 2,928,378 km (0.081 R)
• M7: 3,510,613 km (0.1 R)
• M8: 4,066,070 km (0.105 R)
• M9: 4,567,971 km (0.082 R)
• M10: 5,128,215 km (0.087 R)
• M11: 6,487,312 km (0.053 R)
• M12: 6,898,556 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.6

Radius: 12

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.67 AU - 1.73 AU

Year: 1530 Days

Day: 7.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,691,307 km

• M1: 149,299 km (0.028 R)
• M2: 1,269,637 km (0.065 R)
• M3: 2,719,988 km (0.086 R)
• M4: 3,259,139 km (0.062 R)
• M5: 4,120,524 km (0.117 R)
• M6: 4,588,017 km (0.074 R)
• M7: 5,472,141 km (0.114 R)
• M8: 6,185,872 km (0.075 R)
• M9: 8,334,097 km (0.089 R)
• M10: 9,534,171 km (0.105 R)
• M11: 9,909,961 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553

Radius: 8.4

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.47 AU - 2.23 AU

Year: 1737 Days

Day: 13.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,691,307 km

• M1: 104,868 km (0.044 R)
• M2: 437,275 km (0.048 R)
• M3: 825,780 km (0.051 R)
• M4: 1,133,353 km (0.105 R)
• M5: 1,429,258 km (0.115 R)
• M6: 1,912,160 km (0.043 R)
• M7: 2,398,652 km (0.044 R)
• M8: 2,671,668 km (0.084 R)
• M9: 3,023,822 km (0.064 R)
• M10: 3,470,970 km (0.117 R)
• M11: 3,839,130 km (0.058 R)
• M12: 4,123,217 km (0.083 R)
• M13: 4,440,364 km (0.095 R)
• M14: 5,557,411 km (0.025 R)
• M15: 5,852,418 km (0.114 R)
• M16: 7,059,224 km (0.083 R)
• M17: 8,336,042 km (0.119 R)
• M18: 9,091,212 km (0.077 R)
• M19: 9,373,952 km (0.098 R)
• M20: 9,695,139 km (0.12 R)
• M21: 10,190,457 km (0.07 R)
• M22: 10,633,417 km (0.087 R)
• M23: 12,342,572 km (0.097 R)
• M24: 13,363,129 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.8

Radius: 12.1

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.06 AU - 3.54 AU

Year: 4138 Days

Day: 5.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,691,307 km

• M1: 150,495 km (0.066 R)
• M2: 730,636 km (0.079 R)
• M3: 1,145,620 km (0.041 R)
• M4: 1,836,164 km (0.111 R)
• M5: 3,328,104 km (0.113 R)
• M6: 7,035,289 km (0.106 R)
• M7: 7,543,024 km (0.12 R)
• M8: 10,032,033 km (0.1 R)
• M9: 12,974,773 km (0.096 R)
• M10: 14,266,700 km (0.084 R)
• M11: 15,248,661 km (0.09 R)
• M12: 16,333,395 km (0.073 R)
• M13: 17,044,733 km (0.089 R)
• M14: 18,338,904 km (0.109 R)
• M15: 21,053,058 km (0.081 R)
• M16: 22,325,238 km (0.034 R)
• M17: 23,948,974 km (0.101 R)
• M18: 24,944,847 km (0.095 R)
• M19: 25,729,338 km (0.069 R)
• M20: 26,288,235 km (0.083 R)
• M21: 27,182,980 km (0.104 R)
• M22: 27,846,297 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.9

Radius: 6

Gravity: 12.66 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.84 AU - 7.58 AU

Year: 13363 Days

Day: 23.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,691,307 km

• M1: 74,649 km (0.093 R)
• M2: 355,744 km (0.112 R)
• M3: 986,448 km (0.108 R)
• M4: 1,362,986 km (0.115 R)
• M5: 2,726,870 km (0.081 R)
• M6: 3,543,375 km (0.105 R)
• M7: 4,161,962 km (0.098 R)
• M8: 5,858,552 km (0.112 R)
• M9: 6,565,252 km (0.062 R)
• M10: 7,665,245 km (0.093 R)
• M11: 8,694,927 km (0.068 R)
• M12: 9,073,859 km (0.083 R)
• M13: 11,925,194 km (0.09 R)
• M14: 13,805,939 km (0.116 R)
• M15: 14,126,677 km (0.096 R)
• M16: 14,386,827 km (0.1 R)
• M17: 17,915,243 km (0.082 R)
• M18: 19,878,415 km (0.104 R)
• M19: 25,644,965 km (0.107 R)
• M20: 27,318,516 km (0.085 R)
• M21: 27,621,152 km (0.114 R)
• M22: 28,958,857 km (0.115 R)
• M23: 30,016,813 km (0.1 R)
• M24: 30,231,336 km (0.072 R)
• M25: 31,762,620 km (0.08 R)
• M26: 34,272,274 km (0.117 R)
• M27: 39,296,219 km (0.115 R)
• M28: 40,986,226 km (0.087 R)
• M29: 43,679,885 km (0.113 R)
• M30: 45,210,571 km (0.063 R)
• M31: 46,776,711 km (0.058 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.2

Radius: 5.3

Gravity: 17.95 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.66 AU - 8.36 AU

Year: 14206 Days

Day: 17.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,691,307 km

• M1: 65,973 km (0.117 R)
• M2: 1,202,019 km (0.111 R)
• M3: 5,279,608 km (0.11 R)
• M4: 5,957,286 km (0.118 R)
• M5: 8,290,864 km (0.112 R)
• M6: 8,572,257 km (0.06 R)
• M7: 14,385,630 km (0.109 R)
• M8: 20,032,950 km (0.072 R)
• M9: 23,018,924 km (0.096 R)
• M10: 28,561,824 km (0.074 R)
• M11: 30,184,662 km (0.117 R)
• M12: 31,753,794 km (0.081 R)
• M13: 32,558,331 km (0.115 R)
• M14: 33,258,748 km (0.045 R)
• M15: 40,020,722 km (0.089 R)
• M16: 45,003,827 km (0.103 R)
• M17: 49,154,120 km (0.082 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 18,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit