🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.4

Radius: 12.6

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.52 AU - 0.64 AU

Year: 300 Days

Day: 14.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,721,621 km

• M1: 156,629 km (0.087 R)
• M2: 556,354 km (0.118 R)
• M3: 982,708 km (0.102 R)
• M4: 1,410,259 km (0.092 R)
• M5: 1,877,154 km (0.098 R)
• M6: 2,311,287 km (0.089 R)
• M7: 2,822,463 km (0.109 R)
• M8: 3,375,975 km (0.086 R)
• M9: 3,784,527 km (0.085 R)
• M10: 4,499,904 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.7

Radius: 10.9

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.79 AU - 1.23 AU

Year: 688 Days

Day: 7.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,721,621 km

• M1: 135,536 km (0.112 R)
• M2: 512,822 km (0.036 R)
• M3: 1,053,468 km (0.119 R)
• M4: 1,562,101 km (0.116 R)
• M5: 2,136,258 km (0.114 R)
• M6: 2,594,177 km (0.099 R)
• M7: 3,128,989 km (0.071 R)
• M8: 3,819,383 km (0.055 R)
• M9: 4,752,724 km (0.051 R)
• M10: 5,118,491 km (0.109 R)
• M11: 5,665,720 km (0.111 R)
• M12: 6,409,371 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.2

Radius: 10.4

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.71 AU - 2.51 AU

Year: 2079 Days

Day: 5.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,721,621 km

• M1: 129,402 km (0.082 R)
• M2: 589,864 km (0.039 R)
• M3: 1,041,201 km (0.109 R)
• M4: 1,504,955 km (0.057 R)
• M5: 2,362,450 km (0.038 R)
• M6: 2,826,801 km (0.104 R)
• M7: 3,849,602 km (0.038 R)
• M8: 4,202,204 km (0.031 R)
• M9: 5,859,150 km (0.118 R)
• M10: 6,874,172 km (0.092 R)
• M11: 7,943,198 km (0.11 R)
• M12: 10,092,770 km (0.118 R)
• M13: 13,094,750 km (0.045 R)
• M14: 13,555,213 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.7

Radius: 8

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.18 AU - 2.86 AU

Year: 2713 Days

Day: 14.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,721,621 km

• M1: 99,632 km (0.067 R)
• M2: 405,859 km (0.08 R)
• M3: 2,032,586 km (0.045 R)
• M4: 2,359,757 km (0.063 R)
• M5: 3,009,610 km (0.085 R)
• M6: 3,505,677 km (0.119 R)
• M7: 3,921,858 km (0.12 R)
• M8: 4,411,342 km (0.113 R)
• M9: 6,076,067 km (0.101 R)
• M10: 6,437,645 km (0.066 R)
• M11: 6,704,677 km (0.086 R)
• M12: 7,847,605 km (0.057 R)
• M13: 8,308,217 km (0.088 R)
• M14: 11,074,581 km (0.061 R)
• M15: 12,172,480 km (0.055 R)
• M16: 13,000,205 km (0.081 R)
• M17: 15,469,168 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.7

Radius: 12.3

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.22 AU - 4.76 AU

Year: 6453 Days

Day: 9.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 25,721,621 km

• M1: 153,039 km (0.06 R)
• M2: 635,791 km (0.096 R)
• M3: 1,341,444 km (0.111 R)
• M4: 1,748,350 km (0.043 R)
• M5: 2,321,011 km (0.115 R)
• M6: 3,263,627 km (0.112 R)
• M7: 3,660,211 km (0.112 R)
• M8: 5,706,860 km (0.091 R)
• M9: 6,121,694 km (0.065 R)
• M10: 6,590,833 km (0.114 R)
• M11: 7,266,118 km (0.097 R)
• M12: 9,178,727 km (0.102 R)
• M13: 10,021,711 km (0.065 R)
• M14: 10,723,026 km (0.104 R)
• M15: 15,149,926 km (0.118 R)
• M16: 18,376,602 km (0.055 R)
• M17: 18,932,359 km (0.107 R)
• M18: 19,931,822 km (0.076 R)
• M19: 22,035,916 km (0.115 R)
• M20: 23,302,561 km (0.109 R)
• M21: 23,871,781 km (0.105 R)
• M22: 26,947,064 km (0.086 R)
• M23: 28,119,762 km (0.103 R)
• M24: 29,138,374 km (0.119 R)
• M25: 30,955,390 km (0.093 R)
• M26: 32,241,333 km (0.112 R)
• M27: 36,204,779 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.3

Radius: 13.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.99 AU - 6.03 AU

Year: 7606 Days

Day: 8.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,721,621 km

• M1: 203,004 km (0.062 R)
• M2: 633,697 km (0.05 R)
• M3: 2,130,423 km (0.081 R)
• M4: 2,982,084 km (0.102 R)
• M5: 3,603,663 km (0.116 R)
• M6: 5,027,087 km (0.097 R)
• M7: 5,471,393 km (0.117 R)
• M8: 8,252,118 km (0.118 R)
• M9: 10,832,980 km (0.062 R)
• M10: 11,247,965 km (0.093 R)
• M11: 12,257,900 km (0.102 R)
• M12: 17,406,460 km (0.116 R)
• M13: 19,423,937 km (0.072 R)
• M14: 20,876,383 km (0.084 R)
• M15: 21,304,382 km (0.099 R)
• M16: 25,831,214 km (0.083 R)
• M17: 28,015,492 km (0.066 R)
• M18: 30,320,496 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.3

Radius: 7.8

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 6.06 AU - 6.6 AU

Year: 10802 Days

Day: 17.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,721,621 km

• M1: 98,735 km (0.048 R)
• M2: 672,143 km (0.116 R)
• M3: 1,201,720 km (0.055 R)
• M4: 1,492,538 km (0.108 R)
• M5: 1,855,462 km (0.071 R)
• M6: 2,247,409 km (0.077 R)
• M7: 2,677,353 km (0.07 R)
• M8: 5,323,440 km (0.043 R)
• M9: 5,588,677 km (0.066 R)
• M10: 7,801,679 km (0.051 R)
• M11: 9,462,963 km (0.076 R)
• M12: 14,778,624 km (0.072 R)
• M13: 15,625,498 km (0.115 R)
• M14: 16,005,925 km (0.109 R)
• M15: 16,448,286 km (0.118 R)
• M16: 16,728,931 km (0.117 R)
• M17: 17,415,586 km (0.083 R)
• M18: 18,180,330 km (0.106 R)
• M19: 18,480,423 km (0.091 R)
• M20: 19,152,118 km (0.077 R)
• M21: 19,713,708 km (0.102 R)
• M22: 22,757,277 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.4

Radius: 3.9

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.49 AU - 8.91 AU

Year: 14492 Days

Day: 20.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,721,621 km

• M1: 49,816 km (0.089 R)
• M2: 190,887 km (0.088 R)
• M3: 444,904 km (0.105 R)
• M4: 1,031,029 km (0.074 R)
• M5: 1,307,186 km (0.114 R)
• M6: 2,696,950 km (0.109 R)
• M7: 2,995,548 km (0.118 R)
• M8: 3,979,902 km (0.099 R)
• M9: 5,402,129 km (0.113 R)
• M10: 6,286,252 km (0.039 R)
• M11: 8,372,843 km (0.041 R)
• M12: 8,779,151 km (0.119 R)
• M13: 9,511,732 km (0.095 R)
• M14: 10,325,843 km (0.108 R)
• M15: 13,895,398 km (0.12 R)
• M16: 15,483,529 km (0.101 R)
• M17: 15,648,685 km (0.056 R)
• M18: 15,982,588 km (0.119 R)
• M19: 18,269,490 km (0.119 R)
• M20: 20,632,239 km (0.111 R)
• M21: 23,407,280 km (0.092 R)
• M22: 25,644,665 km (0.115 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 12,620 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit