🌌 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: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.8

Radius: 9.1

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.69 AU - 0.71 AU

Year: 384 Days

Day: 11.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,559,966 km

• M1: 113,246 km (0.061 R)
• M2: 420,819 km (0.1 R)
• M3: 877,242 km (0.047 R)
• M4: 1,389,914 km (0.074 R)
• M5: 1,676,693 km (0.101 R)
• M6: 2,133,565 km (0.078 R)
• M7: 2,456,995 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.8

Radius: 14.3

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.91 AU - 1.09 AU

Year: 656 Days

Day: 10.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 15,559,966 km

• M1: 178,171 km (0.091 R)
• M2: 634,295 km (0.094 R)
• M3: 1,082,640 km (0.105 R)
• M4: 2,161,091 km (0.031 R)
• M5: 2,733,452 km (0.094 R)
• M6: 4,288,971 km (0.086 R)
• M7: 4,816,004 km (0.081 R)
• M8: 5,626,974 km (0.11 R)
• M9: 6,204,572 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.6

Radius: 10

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.08 AU - 1.36 AU

Year: 884 Days

Day: 9.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,559,966 km

• M1: 125,213 km (0.113 R)
• M2: 520,601 km (0.093 R)
• M3: 864,676 km (0.067 R)
• M4: 1,562,849 km (0.066 R)
• M5: 1,879,099 km (0.096 R)
• M6: 2,415,407 km (0.04 R)
• M7: 2,797,630 km (0.041 R)
• M8: 4,344,173 km (0.104 R)
• M9: 4,670,146 km (0.12 R)
• M10: 5,729,898 km (0.042 R)
• M11: 6,574,228 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381

Radius: 14.8

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.41 AU - 1.45 AU

Year: 1122 Days

Day: 11.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,559,966 km

• M1: 184,005 km (0.101 R)
• M2: 684,859 km (0.085 R)
• M3: 1,221,766 km (0.068 R)
• M4: 1,955,244 km (0.065 R)
• M5: 2,697,399 km (0.106 R)
• M6: 3,161,452 km (0.118 R)
• M7: 4,081,628 km (0.073 R)
• M8: 5,030,079 km (0.108 R)
• M9: 5,566,686 km (0.06 R)
• M10: 6,932,515 km (0.067 R)
• M11: 8,058,987 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.6

Radius: 8.6

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.51 AU - 2.15 AU

Year: 1624 Days

Day: 7.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 15,559,966 km

• M1: 107,710 km (0.117 R)
• M2: 378,483 km (0.086 R)
• M3: 690,843 km (0.108 R)
• M4: 1,463,366 km (0.071 R)
• M5: 1,791,584 km (0.115 R)
• M6: 2,147,029 km (0.081 R)
• M7: 3,196,906 km (0.088 R)
• M8: 3,598,128 km (0.105 R)
• M9: 3,867,853 km (0.094 R)
• M10: 4,324,126 km (0.113 R)
• M11: 4,797,005 km (0.106 R)
• M12: 6,333,375 km (0.106 R)
• M13: 6,633,918 km (0.1 R)
• M14: 6,919,650 km (0.105 R)
• M15: 7,722,392 km (0.095 R)
• M16: 8,092,497 km (0.08 R)
• M17: 11,291,049 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935

Radius: 9.5

Gravity: 10.36 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.82 AU - 2.82 AU

Year: 2318 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 15,559,966 km

• M1: 119,379 km (0.096 R)
• M2: 1,145,022 km (0.089 R)
• M3: 2,009,399 km (0.066 R)
• M4: 2,842,659 km (0.068 R)
• M5: 3,206,930 km (0.04 R)
• M6: 4,298,695 km (0.07 R)
• M7: 4,645,612 km (0.085 R)
• M8: 7,348,098 km (0.085 R)
• M9: 7,909,688 km (0.045 R)
• M10: 8,332,751 km (0.062 R)
• M11: 10,757,882 km (0.1 R)
• M12: 11,400,106 km (0.117 R)
• M13: 12,411,238 km (0.087 R)
• M14: 13,897,493 km (0.088 R)
• M15: 16,632,740 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.3

Radius: 11.8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.35 AU - 3.81 AU

Year: 4444 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 15,559,966 km

• M1: 146,756 km (0.089 R)
• M2: 760,256 km (0.071 R)
• M3: 1,228,348 km (0.117 R)
• M4: 2,172,460 km (0.079 R)
• M5: 3,223,834 km (0.076 R)
• M6: 5,497,871 km (0.057 R)
• M7: 6,303,755 km (0.101 R)
• M8: 6,751,801 km (0.093 R)
• M9: 8,076,191 km (0.109 R)
• M10: 10,289,940 km (0.037 R)
• M11: 10,912,716 km (0.1 R)
• M12: 12,381,019 km (0.067 R)
• M13: 15,133,620 km (0.069 R)
• M14: 16,652,637 km (0.112 R)
• M15: 19,317,723 km (0.116 R)
• M16: 21,103,173 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.1

Radius: 12.6

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.69 AU - 5.99 AU

Year: 8095 Days

Day: 10.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,559,966 km

• M1: 158,125 km (0.104 R)
• M2: 1,318,855 km (0.119 R)
• M3: 1,891,515 km (0.065 R)
• M4: 2,483,175 km (0.076 R)
• M5: 3,071,843 km (0.045 R)
• M6: 3,728,877 km (0.079 R)
• M7: 7,151,825 km (0.056 R)
• M8: 16,222,244 km (0.081 R)
• M9: 18,419,238 km (0.072 R)
• M10: 19,770,555 km (0.091 R)
• M11: 20,883,264 km (0.059 R)
• M12: 25,581,535 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.2

Radius: 3.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.51 AU - 7.63 AU

Year: 11047 Days

Day: 24.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,559,966 km

• M1: 42,336 km (0.077 R)
• M2: 413,040 km (0.101 R)
• M3: 604,974 km (0.115 R)
• M4: 1,456,335 km (0.105 R)
• M5: 2,028,846 km (0.105 R)
• M6: 9,946,912 km (0.096 R)
• M7: 15,467,073 km (0.034 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 11,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit