🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.3

Radius: 12.9

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.56 AU - 0.82 AU

Year: 389 Days

Day: 12.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,516,146 km

• M1: 160,668 km (0.052 R)
• M2: 815,159 km (0.113 R)
• M3: 1,235,230 km (0.108 R)
• M4: 1,733,391 km (0.094 R)
• M5: 2,365,741 km (0.09 R)
• M6: 3,426,090 km (0.109 R)
• M7: 4,526,532 km (0.085 R)
• M8: 4,941,816 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.5

Radius: 11.9

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.33 AU - 2.01 AU

Year: 1464 Days

Day: 7.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,516,146 km

• M1: 150,196 km (0.086 R)
• M2: 553,811 km (0.118 R)
• M3: 1,197,531 km (0.03 R)
• M4: 1,798,466 km (0.08 R)
• M5: 3,674,124 km (0.083 R)
• M6: 4,646,809 km (0.119 R)
• M7: 5,827,435 km (0.096 R)
• M8: 7,507,270 km (0.116 R)
• M9: 9,736,278 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919

Radius: 9.2

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.67 AU - 2.78 AU

Year: 2243 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,516,146 km

• M1: 114,442 km (0.064 R)
• M2: 455,526 km (0.093 R)
• M3: 850,464 km (0.083 R)
• M4: 1,145,920 km (0.064 R)
• M5: 1,491,341 km (0.12 R)
• M6: 2,090,780 km (0.085 R)
• M7: 2,811,542 km (0.077 R)
• M8: 3,522,132 km (0.119 R)
• M9: 4,739,111 km (0.081 R)
• M10: 5,592,268 km (0.114 R)
• M11: 5,898,494 km (0.109 R)
• M12: 6,215,792 km (0.098 R)
• M13: 10,541,713 km (0.102 R)
• M14: 10,970,760 km (0.111 R)
• M15: 12,413,781 km (0.062 R)
• M16: 14,025,848 km (0.057 R)
• M17: 19,460,738 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.4

Radius: 9.1

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.5 AU - 2.92 AU

Year: 3026 Days

Day: 6.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,516,146 km

• M1: 113,096 km (0.068 R)
• M2: 441,015 km (0.102 R)
• M3: 799,601 km (0.074 R)
• M4: 1,188,555 km (0.089 R)
• M5: 1,601,595 km (0.116 R)
• M6: 1,979,030 km (0.088 R)
• M7: 2,415,258 km (0.115 R)
• M8: 3,189,726 km (0.075 R)
• M9: 3,576,885 km (0.027 R)
• M10: 3,933,526 km (0.054 R)
• M11: 4,859,238 km (0.03 R)
• M12: 5,272,876 km (0.077 R)
• M13: 5,896,550 km (0.108 R)
• M14: 6,198,438 km (0.118 R)
• M15: 7,074,932 km (0.107 R)
• M16: 8,892,845 km (0.108 R)
• M17: 9,625,127 km (0.079 R)
• M18: 11,846,506 km (0.098 R)
• M19: 12,195,817 km (0.118 R)
• M20: 12,961,160 km (0.097 R)
• M21: 14,686,921 km (0.102 R)
• M22: 15,243,574 km (0.104 R)
• M23: 15,814,141 km (0.086 R)
• M24: 17,611,559 km (0.115 R)
• M25: 21,542,841 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 14.2

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.1 AU - 3.68 AU

Year: 4233 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,516,146 km

• M1: 195,524 km (0.075 R)
• M2: 687,701 km (0.065 R)
• M3: 1,135,448 km (0.103 R)
• M4: 3,224,133 km (0.119 R)
• M5: 4,327,268 km (0.104 R)
• M6: 5,972,845 km (0.032 R)
• M7: 11,639,014 km (0.119 R)
• M8: 14,301,407 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.3

Radius: 9.3

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.89 AU - 4.59 AU

Year: 4906 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,516,146 km

• M1: 115,639 km (0.11 R)
• M2: 476,768 km (0.117 R)
• M3: 800,947 km (0.108 R)
• M4: 1,256,772 km (0.087 R)
• M5: 1,623,586 km (0.073 R)
• M6: 3,668,439 km (0.091 R)
• M7: 4,139,971 km (0.117 R)
• M8: 5,150,355 km (0.106 R)
• M9: 8,460,657 km (0.104 R)
• M10: 8,965,101 km (0.118 R)
• M11: 9,285,390 km (0.083 R)
• M12: 11,094,328 km (0.094 R)
• M13: 13,962,717 km (0.092 R)
• M14: 17,107,564 km (0.098 R)
• M15: 20,557,291 km (0.082 R)
• M16: 25,309,117 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.7

Radius: 11.7

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.5 AU - 4.98 AU

Year: 6999 Days

Day: 6.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,516,146 km

• M1: 151,991 km (0.111 R)
• M2: 667,506 km (0.099 R)
• M3: 1,043,744 km (0.106 R)
• M4: 2,214,497 km (0.046 R)
• M5: 3,239,991 km (0.077 R)
• M6: 3,660,510 km (0.113 R)
• M7: 4,320,985 km (0.108 R)
• M8: 5,566,387 km (0.113 R)
• M9: 9,799,708 km (0.027 R)
• M10: 10,733,348 km (0.083 R)
• M11: 11,879,268 km (0.059 R)
• M12: 12,296,347 km (0.055 R)
• M13: 13,606,974 km (0.105 R)
• M14: 14,649,371 km (0.066 R)
• M15: 15,620,112 km (0.086 R)
• M16: 16,439,908 km (0.1 R)
• M17: 17,221,856 km (0.065 R)
• M18: 21,127,109 km (0.094 R)
• M19: 25,328,116 km (0.105 R)
• M20: 28,265,321 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 456.2

Radius: 6.2

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.06 AU - 9.9 AU

Year: 18252 Days

Day: 21.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,516,146 km

• M1: 77,193 km (0.06 R)
• M2: 328,068 km (0.112 R)
• M3: 607,218 km (0.085 R)
• M4: 1,124,677 km (0.045 R)
• M5: 2,509,654 km (0.108 R)
• M6: 3,163,546 km (0.112 R)
• M7: 4,349,109 km (0.114 R)
• M8: 5,041,448 km (0.116 R)
• M9: 6,036,573 km (0.067 R)
• M10: 6,726,668 km (0.105 R)
• M11: 8,262,590 km (0.111 R)
• M12: 8,958,220 km (0.11 R)
• M13: 9,638,441 km (0.09 R)
• M14: 10,018,719 km (0.092 R)
• M15: 10,352,472 km (0.106 R)
• M16: 10,925,282 km (0.059 R)
• M17: 13,229,538 km (0.057 R)
• M18: 15,394,369 km (0.05 R)
• M19: 19,537,183 km (0.093 R)
• M20: 23,188,717 km (0.086 R)
• M21: 24,869,449 km (0.074 R)
• M22: 26,842,346 km (0.111 R)
• M23: 27,055,822 km (0.046 R)
• M24: 27,486,365 km (0.1 R)
• M25: 29,936,180 km (0.114 R)
• M26: 30,165,812 km (0.089 R)
• M27: 33,753,768 km (0.062 R)
• M28: 36,558,877 km (0.085 R)
• M29: 37,883,716 km (0.046 R)
• M30: 48,539,273 km (0.092 R)
• M31: 53,105,150 km (0.091 R)
• M32: 58,664,506 km (0.1 R)
• M33: 59,566,731 km (0.089 R)
• M34: 60,661,637 km (0.093 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 235 - 11,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit