🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.47 AU - 0.77 AU

Year: 310 Days

Day: 39.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.8

Radius: 11.7

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.88 AU - 1.18 AU

Year: 665 Days

Day: 7.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,018,178 km

• M1: 145,708 km (0.066 R)
• M2: 510,578 km (0.061 R)
• M3: 948,451 km (0.104 R)
• M4: 1,590,674 km (0.046 R)
• M5: 1,963,173 km (0.085 R)
• M6: 2,623,348 km (0.093 R)
• M7: 3,137,965 km (0.056 R)
• M8: 3,624,457 km (0.113 R)
• M9: 4,356,589 km (0.099 R)
• M10: 5,500,863 km (0.119 R)
• M11: 6,898,556 km (0.055 R)
• M12: 7,391,332 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.2

Radius: 12.7

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.58 AU - 1.72 AU

Year: 1348 Days

Day: 8.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,018,178 km

• M1: 157,975 km (0.119 R)
• M2: 694,733 km (0.075 R)
• M3: 1,362,537 km (0.098 R)
• M4: 2,804,661 km (0.064 R)
• M5: 3,478,599 km (0.097 R)
• M6: 4,275,806 km (0.092 R)
• M7: 4,859,836 km (0.097 R)
• M8: 8,532,315 km (0.113 R)
• M9: 8,959,566 km (0.072 R)
• M10: 9,611,962 km (0.058 R)
• M11: 10,391,517 km (0.039 R)
• M12: 11,484,778 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.7

Radius: 12.7

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.5 AU - 2.12 AU

Year: 1548 Days

Day: 12.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,018,178 km

• M1: 158,424 km (0.113 R)
• M2: 670,049 km (0.077 R)
• M3: 1,638,994 km (0.104 R)
• M4: 2,069,687 km (0.117 R)
• M5: 3,165,940 km (0.087 R)
• M6: 4,273,862 km (0.084 R)
• M7: 4,836,050 km (0.058 R)
• M8: 5,692,498 km (0.098 R)
• M9: 6,157,448 km (0.101 R)
• M10: 7,006,117 km (0.098 R)
• M11: 8,131,691 km (0.077 R)
• M12: 11,415,514 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 14.1

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.34 AU - 2.58 AU

Year: 2453 Days

Day: 6.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,018,178 km

• M1: 175,478 km (0.051 R)
• M2: 1,083,687 km (0.075 R)
• M3: 1,747,154 km (0.111 R)
• M4: 2,332,979 km (0.114 R)
• M5: 3,131,233 km (0.115 R)
• M6: 4,248,430 km (0.107 R)
• M7: 5,641,635 km (0.111 R)
• M8: 6,513,042 km (0.032 R)
• M9: 7,231,411 km (0.058 R)
• M10: 8,557,148 km (0.046 R)
• M11: 9,172,743 km (0.086 R)
• M12: 9,928,212 km (0.11 R)
• M13: 11,978,152 km (0.118 R)
• M14: 12,618,580 km (0.115 R)
• M15: 13,553,717 km (0.061 R)
• M16: 14,249,496 km (0.071 R)
• M17: 14,774,884 km (0.12 R)
• M18: 19,223,775 km (0.079 R)

Asteroid Belt

Center: 4.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.1

Radius: 6

Gravity: 24.06 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.24 AU - 8.54 AU

Year: 12773 Days

Day: 24.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,018,178 km

• M1: 76,145 km (0.118 R)
• M2: 363,523 km (0.098 R)
• M3: 949,049 km (0.084 R)
• M4: 1,369,868 km (0.094 R)
• M5: 3,161,601 km (0.076 R)
• M6: 3,552,501 km (0.081 R)
• M7: 4,033,757 km (0.028 R)
• M8: 5,022,150 km (0.103 R)
• M9: 6,361,649 km (0.094 R)
• M10: 6,606,092 km (0.051 R)
• M11: 7,646,994 km (0.118 R)
• M12: 8,399,023 km (0.12 R)
• M13: 10,325,095 km (0.097 R)
• M14: 13,503,452 km (0.088 R)
• M15: 13,975,732 km (0.035 R)
• M16: 14,181,579 km (0.102 R)
• M17: 15,385,991 km (0.079 R)
• M18: 16,352,094 km (0.105 R)
• M19: 18,077,855 km (0.089 R)
• M20: 22,444,617 km (0.081 R)
• M21: 23,588,443 km (0.069 R)
• M22: 23,782,770 km (0.056 R)
• M23: 25,888,211 km (0.12 R)
• M24: 26,933,152 km (0.118 R)
• M25: 28,333,238 km (0.114 R)
• M26: 39,518,222 km (0.117 R)
• M27: 40,622,703 km (0.059 R)
• M28: 43,037,961 km (0.115 R)
• M29: 43,766,054 km (0.058 R)
• M30: 46,151,542 km (0.106 R)
• M31: 47,996,382 km (0.12 R)
• M32: 49,889,843 km (0.098 R)
• M33: 53,657,315 km (0.025 R)
• M34: 54,670,392 km (0.106 R)
• M35: 56,213,793 km (0.036 R)
• M36: 58,850,456 km (0.114 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: 516 - 19,222 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit