🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.5 AU - 0.52 AU

Year: 232 Days

Day: 18.4 Hours

Environment

Temp: -116 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.55 AU - 0.61 AU

Year: 281 Days

Day: 18.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 22.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.9

Radius: 10.2

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.73 AU - 0.75 AU

Year: 405 Days

Day: 10.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 12,966,560 km

• M1: 126,859 km (0.118 R)
• M2: 629,957 km (0.105 R)
• M3: 957,726 km (0.107 R)
• M4: 1,423,274 km (0.046 R)
• M5: 1,755,381 km (0.066 R)
• M6: 2,219,733 km (0.061 R)
• M7: 2,560,517 km (0.065 R)
• M8: 2,914,615 km (0.116 R)
• M9: 3,507,771 km (0.041 R)
• M10: 3,826,863 km (0.038 R)
• M11: 5,077,053 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.9

Radius: 11.9

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.89 AU - 0.95 AU

Year: 561 Days

Day: 13.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 12,966,560 km

• M1: 147,952 km (0.097 R)
• M2: 597,195 km (0.12 R)
• M3: 1,003,951 km (0.079 R)
• M4: 1,399,937 km (0.056 R)
• M5: 1,776,325 km (0.093 R)
• M6: 2,192,656 km (0.084 R)
• M7: 2,663,740 km (0.11 R)
• M8: 3,264,674 km (0.108 R)
• M9: 4,577,695 km (0.119 R)
• M10: 5,230,241 km (0.026 R)
• M11: 5,754,880 km (0.115 R)
• M12: 6,475,344 km (0.063 R)
• M13: 7,701,747 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.7

Radius: 10

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.5 AU - 1.8 AU

Year: 1348 Days

Day: 11.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 12,966,560 km

• M1: 124,316 km (0.097 R)
• M2: 525,687 km (0.059 R)
• M3: 857,196 km (0.07 R)
• M4: 1,466,209 km (0.058 R)
• M5: 1,940,584 km (0.119 R)
• M6: 2,367,536 km (0.109 R)
• M7: 2,870,634 km (0.093 R)
• M8: 3,244,628 km (0.09 R)
• M9: 3,667,392 km (0.08 R)
• M10: 4,798,800 km (0.117 R)
• M11: 5,307,284 km (0.08 R)
• M12: 6,601,455 km (0.117 R)
• M13: 7,520,584 km (0.108 R)
• M14: 8,094,890 km (0.105 R)
• M15: 8,875,941 km (0.117 R)
• M16: 9,580,248 km (0.114 R)
• M17: 11,065,605 km (0.109 R)
• M18: 11,415,514 km (0.083 R)
• M19: 12,397,325 km (0.107 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 17,204 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit