🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.8

Radius: 10.9

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.18 AU - 1.64 AU

Year: 1156 Days

Day: 7.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 15,034,222 km

• M1: 135,685 km (0.034 R)
• M2: 542,891 km (0.045 R)
• M3: 952,041 km (0.106 R)
• M4: 2,560,517 km (0.119 R)
• M5: 3,316,734 km (0.044 R)
• M6: 3,838,233 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.1

Radius: 13.9

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.57 AU - 2.31 AU

Year: 1865 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 15,034,222 km

• M1: 172,935 km (0.099 R)
• M2: 623,973 km (0.119 R)
• M3: 1,102,686 km (0.102 R)
• M4: 1,560,904 km (0.12 R)
• M5: 2,172,759 km (0.1 R)
• M6: 2,971,911 km (0.054 R)
• M7: 4,181,859 km (0.115 R)
• M8: 4,631,251 km (0.102 R)
• M9: 5,156,489 km (0.108 R)
• M10: 5,674,696 km (0.084 R)
• M11: 6,555,977 km (0.056 R)
• M12: 7,470,469 km (0.059 R)
• M13: 8,346,514 km (0.108 R)
• M14: 9,192,490 km (0.111 R)
• M15: 10,303,254 km (0.047 R)
• M16: 11,202,936 km (0.075 R)
• M17: 11,998,647 km (0.119 R)
• M18: 12,670,192 km (0.086 R)
• M19: 13,618,343 km (0.061 R)
• M20: 14,791,340 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 10.7

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.79 AU - 2.33 AU

Year: 2041 Days

Day: 10.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,034,222 km

• M1: 133,441 km (0.104 R)
• M2: 1,061,846 km (0.091 R)
• M3: 1,399,338 km (0.073 R)
• M4: 3,404,548 km (0.086 R)
• M5: 3,768,221 km (0.111 R)
• M6: 6,169,416 km (0.074 R)
• M7: 6,643,342 km (0.034 R)
• M8: 10,262,713 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580

Radius: 12.2

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.87 AU - 4.33 AU

Year: 4715 Days

Day: 11.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 15,034,222 km

• M1: 151,842 km (0.06 R)
• M2: 568,472 km (0.103 R)
• M3: 1,333,067 km (0.115 R)
• M4: 1,735,036 km (0.042 R)
• M5: 2,248,755 km (0.041 R)
• M6: 3,287,563 km (0.079 R)
• M7: 3,754,159 km (0.084 R)
• M8: 4,241,848 km (0.054 R)
• M9: 4,622,873 km (0.078 R)
• M10: 6,757,336 km (0.036 R)
• M11: 7,584,911 km (0.098 R)
• M12: 9,561,997 km (0.086 R)
• M13: 10,137,201 km (0.039 R)
• M14: 11,722,639 km (0.095 R)
• M15: 14,349,428 km (0.103 R)
• M16: 14,940,190 km (0.091 R)
• M17: 15,659,157 km (0.098 R)
• M18: 18,265,152 km (0.09 R)
• M19: 19,540,324 km (0.091 R)
• M20: 21,424,061 km (0.094 R)
• M21: 24,020,182 km (0.118 R)
• M22: 24,930,336 km (0.089 R)
• M23: 27,306,249 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.9

Radius: 12.1

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.55 AU - 4.51 AU

Year: 5584 Days

Day: 5.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 15,034,222 km

• M1: 155,582 km (0.106 R)
• M2: 804,986 km (0.096 R)
• M3: 1,277,267 km (0.087 R)
• M4: 1,697,637 km (0.084 R)
• M5: 2,564,706 km (0.1 R)
• M6: 3,327,057 km (0.076 R)
• M7: 4,356,440 km (0.085 R)
• M8: 5,135,097 km (0.106 R)
• M9: 5,943,374 km (0.065 R)
• M10: 7,489,019 km (0.038 R)
• M11: 7,960,402 km (0.115 R)
• M12: 8,490,128 km (0.068 R)
• M13: 9,578,452 km (0.084 R)
• M14: 11,548,058 km (0.118 R)
• M15: 13,140,827 km (0.034 R)
• M16: 13,881,934 km (0.092 R)
• M17: 16,453,971 km (0.113 R)
• M18: 18,927,422 km (0.107 R)
• M19: 21,134,290 km (0.12 R)
• M20: 22,597,806 km (0.04 R)
• M21: 24,600,023 km (0.081 R)
• M22: 26,801,655 km (0.08 R)
• M23: 28,778,142 km (0.09 R)
• M24: 30,027,883 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 14.2

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.09 AU - 5.03 AU

Year: 5647 Days

Day: 9.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,034,222 km

• M1: 199,115 km (0.108 R)
• M2: 909,705 km (0.085 R)
• M3: 2,791,945 km (0.099 R)
• M4: 3,330,647 km (0.099 R)
• M5: 5,885,629 km (0.067 R)
• M6: 7,691,425 km (0.117 R)
• M7: 8,384,961 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.2

Radius: 3.2

Gravity: 21.99 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 6.25 AU - 6.67 AU

Year: 11333 Days

Day: 17.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 15,034,222 km

• M1: 40,691 km (0.095 R)
• M2: 401,820 km (0.079 R)
• M3: 678,426 km (0.052 R)
• M4: 845,378 km (0.085 R)
• M5: 961,914 km (0.038 R)
• M6: 1,173,296 km (0.091 R)
• M7: 1,815,370 km (0.093 R)
• M8: 2,042,161 km (0.083 R)
• M9: 2,797,331 km (0.119 R)
• M10: 3,291,303 km (0.104 R)
• M11: 4,584,128 km (0.106 R)
• M12: 6,016,228 km (0.071 R)
• M13: 7,084,806 km (0.093 R)
• M14: 8,642,269 km (0.118 R)
• M15: 9,150,752 km (0.112 R)
• M16: 9,904,725 km (0.104 R)
• M17: 11,087,297 km (0.111 R)
• M18: 11,235,249 km (0.069 R)
• M19: 11,891,684 km (0.062 R)
• M20: 13,728,597 km (0.025 R)
• M21: 16,184,844 km (0.103 R)
• M22: 18,156,993 km (0.101 R)
• M23: 18,988,757 km (0.051 R)
• M24: 19,773,248 km (0.062 R)
• M25: 20,653,482 km (0.104 R)
• M26: 22,491,591 km (0.092 R)
• M27: 23,450,214 km (0.064 R)
• M28: 25,534,262 km (0.114 R)
• M29: 30,066,330 km (0.06 R)
• M30: 30,740,717 km (0.092 R)
• M31: 35,853,374 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.6

Radius: 6.6

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.5 AU - 8.46 AU

Year: 14121 Days

Day: 18.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 15,034,222 km

• M1: 87,365 km (0.079 R)
• M2: 1,417,589 km (0.063 R)
• M3: 5,188,653 km (0.049 R)
• M4: 7,177,706 km (0.104 R)
• M5: 14,371,419 km (0.115 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 15,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit