🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.03 AU - 1.49 AU

Year: 527 Days

Day: 45 Hours

Environment

Temp: -12 °C

Axial Tilt: 2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 78,236,965 km

• M1: 39,195 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.02 AU - 1.5 AU

Year: 527 Days

Day: 20.1 Hours

Environment

Temp: -20 °C

Axial Tilt: 19.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.19 AU - 1.55 AU

Year: 598 Days

Day: 19.5 Hours

Environment

Temp: -33 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,236,965 km

• M1: 324,478 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.21 AU - 3.37 AU

Year: 1737 Days

Day: 35.3 Hours

Environment

Temp: -98 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,236,965 km

• M1: 2,530,149 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 14.8

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.61 AU - 6.95 AU

Year: 5180 Days

Day: 6.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,236,965 km

• M1: 185,352 km (0.113 R)
• M2: 646,562 km (0.065 R)
• M3: 1,409,362 km (0.089 R)
• M4: 2,081,056 km (0.113 R)
• M5: 2,771,151 km (0.12 R)
• M6: 3,611,143 km (0.051 R)
• M7: 4,567,373 km (0.1 R)
• M8: 5,276,915 km (0.062 R)
• M9: 6,478,635 km (0.094 R)
• M10: 7,579,526 km (0.079 R)
• M11: 9,341,789 km (0.107 R)
• M12: 10,235,337 km (0.042 R)
• M13: 11,052,291 km (0.038 R)
• M14: 11,544,767 km (0.071 R)
• M15: 12,719,110 km (0.059 R)
• M16: 13,817,308 km (0.05 R)
• M17: 14,601,650 km (0.057 R)
• M18: 21,085,221 km (0.053 R)
• M19: 24,913,880 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.4

Radius: 3.9

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 15.07 AU - 15.59 AU

Year: 22375 Days

Day: 17.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 131.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,236,965 km

• M1: 49,966 km (0.096 R)
• M2: 1,201,420 km (0.11 R)
• M3: 1,485,058 km (0.1 R)
• M4: 1,930,860 km (0.112 R)
• M5: 2,319,964 km (0.113 R)
• M6: 4,408,350 km (0.107 R)
• M7: 5,999,922 km (0.046 R)
• M8: 8,166,249 km (0.117 R)
• M9: 8,635,238 km (0.099 R)
• M10: 12,866,165 km (0.118 R)
• M11: 22,359,496 km (0.118 R)
• M12: 34,927,213 km (0.044 R)
• M13: 37,163,402 km (0.114 R)
• M14: 49,325,709 km (0.063 R)
• M15: 50,095,689 km (0.113 R)
• M16: 51,976,284 km (0.067 R)
• M17: 52,453,651 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 466.9

Radius: 4.4

Gravity: 24.12 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 12.66 AU - 20.58 AU

Year: 25258 Days

Day: 17.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 78,236,965 km

• M1: 55,501 km (0.115 R)
• M2: 432,039 km (0.061 R)
• M3: 738,116 km (0.037 R)
• M4: 887,265 km (0.117 R)
• M5: 1,902,885 km (0.053 R)
• M6: 2,664,936 km (0.082 R)
• M7: 3,493,709 km (0.067 R)
• M8: 3,825,367 km (0.113 R)
• M9: 4,079,384 km (0.093 R)
• M10: 5,171,748 km (0.09 R)
• M11: 5,325,684 km (0.074 R)
• M12: 6,270,694 km (0.117 R)
• M13: 6,669,223 km (0.085 R)
• M14: 6,990,708 km (0.09 R)
• M15: 7,467,926 km (0.113 R)
• M16: 8,539,944 km (0.108 R)
• M17: 8,701,061 km (0.106 R)
• M18: 9,084,929 km (0.105 R)
• M19: 9,479,867 km (0.076 R)
• M20: 9,710,697 km (0.069 R)
• M21: 10,796,030 km (0.077 R)
• M22: 11,760,337 km (0.106 R)
• M23: 17,282,144 km (0.034 R)
• M24: 23,359,109 km (0.115 R)
• M25: 24,313,843 km (0.075 R)
• M26: 33,701,857 km (0.069 R)
• M27: 33,970,086 km (0.079 R)
• M28: 34,510,434 km (0.119 R)
• M29: 34,782,851 km (0.097 R)
• M30: 36,729,868 km (0.04 R)
• M31: 38,455,479 km (0.086 R)
• M32: 41,450,279 km (0.082 R)
• M33: 54,431,036 km (0.115 R)
• M34: 57,049,597 km (0.091 R)
• M35: 59,165,060 km (0.074 R)
• M36: 64,371,814 km (0.104 R)
• M37: 68,578,955 km (0.12 R)
• M38: 70,093,634 km (0.104 R)
• M39: 73,864,697 km (0.042 R)
• M40: 75,455,969 km (0.11 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 11,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit