🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.97 AU - 1.21 AU

Year: 429 Days

Day: 44.8 Hours

Environment

Temp: 7 °C

Axial Tilt: 36.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.24 AU - 5.32 AU

Year: 3336 Days

Day: 47.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,696,894 km

• M1: 2,114,716 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730

Radius: 11

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.11 AU - 10.69 AU

Year: 11735 Days

Day: 11.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,696,894 km

• M1: 137,181 km (0.099 R)
• M2: 591,360 km (0.11 R)
• M3: 1,080,845 km (0.076 R)
• M4: 4,578,443 km (0.046 R)
• M5: 6,887,935 km (0.092 R)
• M6: 7,515,199 km (0.092 R)
• M7: 11,872,985 km (0.064 R)
• M8: 15,127,187 km (0.056 R)
• M9: 16,478,505 km (0.1 R)
• M10: 17,754,126 km (0.088 R)
• M11: 19,014,039 km (0.095 R)
• M12: 19,748,265 km (0.067 R)
• M13: 24,845,514 km (0.108 R)
• M14: 25,526,483 km (0.073 R)
• M15: 27,644,041 km (0.117 R)
• M16: 31,769,053 km (0.105 R)
• M17: 43,559,310 km (0.119 R)
• M18: 48,509,054 km (0.07 R)
• M19: 50,033,307 km (0.116 R)
• M20: 52,538,174 km (0.12 R)

Planet 4 - Ice Giant

Semi-Major Axis: 11.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.4

Radius: 7

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 9.32 AU - 14.62 AU

Year: 15602 Days

Day: 23.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 94,696,894 km

• M1: 87,515 km (0.117 R)
• M2: 589,864 km (0.093 R)
• M3: 956,080 km (0.119 R)
• M4: 1,272,180 km (0.112 R)
• M5: 1,784,254 km (0.117 R)
• M6: 2,608,388 km (0.074 R)
• M7: 9,609,270 km (0.099 R)
• M8: 11,870,142 km (0.096 R)
• M9: 12,157,520 km (0.11 R)
• M10: 13,200,067 km (0.104 R)
• M11: 13,927,562 km (0.075 R)
• M12: 17,105,918 km (0.117 R)
• M13: 19,058,021 km (0.106 R)
• M14: 24,695,467 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.8

Radius: 4.1

Gravity: 34.97 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 18.44 AU - 18.56 AU

Year: 29977 Days

Day: 16.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,696,894 km

• M1: 52,509 km (0.115 R)
• M2: 198,666 km (0.11 R)
• M3: 357,838 km (0.087 R)
• M4: 978,520 km (0.107 R)
• M5: 1,392,307 km (0.071 R)
• M6: 1,565,542 km (0.105 R)
• M7: 2,311,885 km (0.046 R)
• M8: 5,368,320 km (0.041 R)
• M9: 6,338,312 km (0.069 R)
• M10: 7,163,793 km (0.085 R)
• M11: 12,167,992 km (0.044 R)
• M12: 12,754,116 km (0.108 R)
• M13: 14,462,973 km (0.103 R)
• M14: 26,525,946 km (0.112 R)
• M15: 29,548,871 km (0.069 R)
• M16: 31,008,048 km (0.099 R)
• M17: 46,538,102 km (0.079 R)
• M18: 51,475,730 km (0.062 R)
• M19: 61,307,152 km (0.064 R)
• M20: 80,942,022 km (0.086 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 18,630 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit