🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.4

Radius: 13.6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.66 AU - 0.84 AU

Year: 441 Days

Day: 5.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,197,923 km

• M1: 169,195 km (0.119 R)
• M2: 602,879 km (0.113 R)
• M3: 1,052,870 km (0.03 R)
• M4: 1,613,862 km (0.081 R)
• M5: 2,174,704 km (0.096 R)
• M6: 2,797,181 km (0.063 R)
• M7: 3,458,404 km (0.054 R)
• M8: 3,984,240 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.9

Radius: 9.1

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.69 AU - 0.83 AU

Year: 449 Days

Day: 12.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,197,923 km

• M1: 113,246 km (0.096 R)
• M2: 472,131 km (0.088 R)
• M3: 907,012 km (0.088 R)
• M4: 1,286,542 km (0.099 R)
• M5: 1,809,536 km (0.103 R)
• M6: 2,412,714 km (0.07 R)
• M7: 3,068,701 km (0.073 R)
• M8: 3,368,645 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.3

Radius: 13

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.92 AU - 0.96 AU

Year: 618 Days

Day: 11.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,197,923 km

• M1: 161,715 km (0.105 R)
• M2: 577,298 km (0.051 R)
• M3: 987,795 km (0.1 R)
• M4: 1,944,922 km (0.098 R)
• M5: 2,911,923 km (0.109 R)
• M6: 4,135,633 km (0.102 R)
• M7: 4,577,844 km (0.059 R)
• M8: 5,626,226 km (0.105 R)
• M9: 6,189,313 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.1

Radius: 10.2

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.85 AU - 1.03 AU

Year: 618 Days

Day: 8.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,197,923 km

• M1: 127,308 km (0.091 R)
• M2: 451,486 km (0.066 R)
• M3: 1,020,108 km (0.06 R)
• M4: 1,622,090 km (0.068 R)
• M5: 2,667,330 km (0.042 R)
• M6: 3,147,838 km (0.075 R)
• M7: 3,642,858 km (0.051 R)
• M8: 4,362,124 km (0.117 R)
• M9: 4,892,299 km (0.11 R)
• M10: 5,864,835 km (0.102 R)
• M11: 7,340,468 km (0.111 R)
• M12: 8,287,423 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.8

Radius: 8.1

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.02 AU - 1.36 AU

Year: 880 Days

Day: 7.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,197,923 km

• M1: 102,624 km (0.063 R)
• M2: 439,219 km (0.08 R)
• M3: 772,374 km (0.045 R)
• M4: 1,239,867 km (0.099 R)
• M5: 1,542,504 km (0.107 R)
• M6: 2,109,480 km (0.08 R)
• M7: 2,556,328 km (0.067 R)
• M8: 2,940,945 km (0.034 R)
• M9: 5,758,770 km (0.104 R)
• M10: 6,675,057 km (0.039 R)
• M11: 7,337,925 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.5

Radius: 13.5

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.96 AU - 2.4 AU

Year: 2183 Days

Day: 10.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,197,923 km

• M1: 167,998 km (0.097 R)
• M2: 603,777 km (0.089 R)
• M3: 1,029,682 km (0.088 R)
• M4: 2,070,584 km (0.049 R)
• M5: 2,648,331 km (0.097 R)
• M6: 3,170,876 km (0.117 R)
• M7: 3,638,071 km (0.054 R)
• M8: 4,861,183 km (0.093 R)
• M9: 5,770,139 km (0.052 R)
• M10: 6,291,189 km (0.076 R)
• M11: 7,776,995 km (0.052 R)
• M12: 8,290,116 km (0.107 R)
• M13: 8,890,452 km (0.094 R)
• M14: 11,279,979 km (0.12 R)
• M15: 11,703,341 km (0.041 R)
• M16: 12,623,068 km (0.096 R)
• M17: 13,206,201 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.9

Radius: 12.2

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.34 AU - 5.2 AU

Year: 7066 Days

Day: 10.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,197,923 km

• M1: 154,235 km (0.069 R)
• M2: 695,929 km (0.065 R)
• M3: 1,747,004 km (0.038 R)
• M4: 2,839,218 km (0.102 R)
• M5: 3,646,448 km (0.097 R)
• M6: 4,434,978 km (0.118 R)
• M7: 6,905,587 km (0.107 R)
• M8: 9,573,815 km (0.09 R)
• M9: 10,016,026 km (0.068 R)
• M10: 13,654,994 km (0.059 R)
• M11: 14,739,579 km (0.119 R)
• M12: 15,936,512 km (0.079 R)
• M13: 16,558,839 km (0.076 R)
• M14: 17,197,322 km (0.032 R)
• M15: 17,731,686 km (0.045 R)
• M16: 18,461,574 km (0.095 R)
• M17: 19,274,788 km (0.101 R)
• M18: 23,922,943 km (0.114 R)
• M19: 25,344,422 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.8

Radius: 3.6

Gravity: 31.54 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.68 AU - 11.94 AU

Year: 22453 Days

Day: 16.1 Hours

Environment

Temp: -243 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 69,197,923 km

• M1: 46,525 km (0.11 R)
• M2: 170,392 km (0.112 R)
• M3: 302,337 km (0.081 R)
• M4: 640,578 km (0.064 R)
• M5: 853,605 km (0.105 R)
• M6: 1,205,011 km (0.091 R)
• M7: 1,662,481 km (0.112 R)
• M8: 1,856,510 km (0.112 R)
• M9: 2,268,502 km (0.098 R)
• M10: 2,786,859 km (0.085 R)
• M11: 3,407,540 km (0.088 R)
• M12: 6,688,371 km (0.071 R)
• M13: 8,381,370 km (0.067 R)
• M14: 12,918,973 km (0.096 R)
• M15: 13,260,206 km (0.054 R)
• M16: 14,392,362 km (0.119 R)
• M17: 18,343,392 km (0.117 R)
• M18: 20,381,364 km (0.098 R)
• M19: 21,788,780 km (0.081 R)
• M20: 23,968,122 km (0.098 R)
• M21: 26,397,591 km (0.114 R)
• M22: 26,836,063 km (0.094 R)
• M23: 27,168,170 km (0.086 R)
• M24: 28,295,091 km (0.066 R)
• M25: 29,806,179 km (0.057 R)
• M26: 30,401,279 km (0.073 R)
• M27: 31,985,970 km (0.106 R)
• M28: 32,234,452 km (0.105 R)
• M29: 34,922,725 km (0.092 R)
• M30: 45,112,883 km (0.083 R)
• M31: 49,788,266 km (0.103 R)
• M32: 52,500,924 km (0.056 R)
• M33: 59,710,195 km (0.105 R)
• M34: 61,036,081 km (0.081 R)
• M35: 65,131,173 km (0.089 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: 512 - 14,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit