🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758

Radius: 13

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.41 AU - 0.67 AU

Year: 269 Days

Day: 13.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,653,786 km

• M1: 161,715 km (0.115 R)
• M2: 568,472 km (0.095 R)
• M3: 1,011,880 km (0.071 R)
• M4: 1,743,264 km (0.071 R)
• M5: 2,285,257 km (0.086 R)
• M6: 2,919,552 km (0.065 R)
• M7: 3,887,301 km (0.062 R)
• M8: 4,312,607 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.4

Radius: 11

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.54 AU - 0.86 AU

Year: 397 Days

Day: 7.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,653,786 km

• M1: 136,882 km (0.083 R)
• M2: 554,859 km (0.072 R)
• M3: 925,861 km (0.036 R)
• M4: 1,277,566 km (0.116 R)
• M5: 1,694,196 km (0.1 R)
• M6: 2,146,729 km (0.102 R)
• M7: 2,571,288 km (0.101 R)
• M8: 2,992,406 km (0.116 R)
• M9: 3,625,654 km (0.069 R)
• M10: 4,059,338 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.9

Radius: 13.2

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.59 AU - 0.85 AU

Year: 414 Days

Day: 13.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,653,786 km

• M1: 181,163 km (0.086 R)
• M2: 787,034 km (0.071 R)
• M3: 1,383,930 km (0.078 R)
• M4: 2,112,172 km (0.112 R)
• M5: 3,117,470 km (0.07 R)
• M6: 4,117,681 km (0.106 R)
• M7: 5,147,663 km (0.108 R)
• M8: 5,581,945 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 10.1

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.82 AU - 0.9 AU

Year: 541 Days

Day: 8.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,653,786 km

• M1: 125,662 km (0.051 R)
• M2: 441,613 km (0.104 R)
• M3: 891,753 km (0.035 R)
• M4: 1,369,419 km (0.105 R)
• M5: 1,695,542 km (0.103 R)
• M6: 2,303,209 km (0.104 R)
• M7: 3,016,043 km (0.067 R)
• M8: 3,655,274 km (0.1 R)
• M9: 3,979,752 km (0.104 R)
• M10: 5,372,508 km (0.1 R)
• M11: 5,704,017 km (0.097 R)
• M12: 6,505,114 km (0.115 R)
• M13: 6,821,663 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.4

Radius: 13.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.83 AU - 1.05 AU

Year: 618 Days

Day: 13.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,653,786 km

• M1: 172,935 km (0.046 R)
• M2: 621,430 km (0.051 R)
• M3: 1,242,261 km (0.117 R)
• M4: 2,008,800 km (0.099 R)
• M5: 3,063,016 km (0.098 R)
• M6: 4,398,925 km (0.088 R)
• M7: 5,603,039 km (0.051 R)
• M8: 7,058,028 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192

Radius: 10.9

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.18 AU - 1.58 AU

Year: 1100 Days

Day: 11 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,653,786 km

• M1: 135,984 km (0.096 R)
• M2: 523,144 km (0.11 R)
• M3: 897,438 km (0.105 R)
• M4: 1,423,274 km (0.1 R)
• M5: 2,004,761 km (0.069 R)
• M6: 3,261,084 km (0.089 R)
• M7: 4,307,521 km (0.084 R)
• M8: 6,483,572 km (0.098 R)
• M9: 6,989,811 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.5

Radius: 14.3

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.12 AU - 2.72 AU

Year: 2553 Days

Day: 6.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,653,786 km

• M1: 178,620 km (0.117 R)
• M2: 928,404 km (0.113 R)
• M3: 1,497,026 km (0.079 R)
• M4: 2,673,314 km (0.101 R)
• M5: 4,130,846 km (0.102 R)
• M6: 6,086,689 km (0.111 R)
• M7: 7,409,732 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.6

Radius: 9.6

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.21 AU - 3.69 AU

Year: 4346 Days

Day: 7.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,653,786 km

• M1: 122,221 km (0.113 R)
• M2: 460,313 km (0.073 R)
• M3: 824,883 km (0.062 R)
• M4: 1,508,844 km (0.094 R)
• M5: 1,831,228 km (0.12 R)
• M6: 2,215,096 km (0.107 R)
• M7: 4,591,458 km (0.112 R)
• M8: 6,889,281 km (0.099 R)
• M9: 7,789,262 km (0.084 R)
• M10: 10,645,534 km (0.116 R)
• M11: 12,679,168 km (0.119 R)
• M12: 13,186,903 km (0.073 R)
• M13: 13,814,017 km (0.114 R)
• M14: 15,241,031 km (0.105 R)
• M15: 16,824,375 km (0.087 R)
• M16: 17,190,591 km (0.098 R)
• M17: 18,257,223 km (0.034 R)
• M18: 21,865,973 km (0.11 R)
• M19: 25,924,264 km (0.061 R)
• M20: 28,087,449 km (0.111 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 16,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit