🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.69 AU - 1.07 AU

Year: 314 Days

Day: 38.8 Hours

Environment

Temp: 38 °C

Axial Tilt: 13.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 67,968,341 km

• M1: 67,169 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.71 AU - 1.13 AU

Year: 336 Days

Day: 27.8 Hours

Environment

Temp: 24 °C

Axial Tilt: 19.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.88 AU - 1.24 AU

Year: 416 Days

Day: 43.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 36 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 67,968,341 km

• M1: 42,187 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.3 AU - 3.66 AU

Year: 1959 Days

Day: 37.5 Hours

Environment

Temp: -118 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,968,341 km

• M1: 142,417 km (0.039 R)
• M2: 1,526,796 km (0.075 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.6 AU - 3.82 AU

Year: 2190 Days

Day: 25.6 Hours

Environment

Temp: -119 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.85 AU - 4.03 AU

Year: 2430 Days

Day: 19.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,968,341 km

• M1: 260,450 km (0.075 R)
• M2: 3,185,238 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.7

Radius: 5.3

Gravity: 27.12 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 12.13 AU - 14.73 AU

Year: 18742 Days

Day: 25 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,968,341 km

• M1: 66,272 km (0.119 R)
• M2: 295,905 km (0.064 R)
• M3: 505,790 km (0.093 R)
• M4: 696,827 km (0.113 R)
• M5: 1,361,191 km (0.104 R)
• M6: 2,560,517 km (0.12 R)
• M7: 3,056,434 km (0.067 R)
• M8: 8,670,244 km (0.094 R)
• M9: 12,820,538 km (0.084 R)
• M10: 13,099,238 km (0.104 R)
• M11: 13,382,128 km (0.107 R)
• M12: 14,705,471 km (0.114 R)
• M13: 15,555,785 km (0.093 R)
• M14: 17,867,521 km (0.064 R)
• M15: 18,303,000 km (0.044 R)
• M16: 18,834,970 km (0.105 R)
• M17: 19,652,223 km (0.095 R)
• M18: 19,929,877 km (0.082 R)
• M19: 21,163,162 km (0.049 R)
• M20: 22,851,524 km (0.041 R)
• M21: 26,046,336 km (0.045 R)
• M22: 26,493,633 km (0.067 R)
• M23: 30,876,701 km (0.082 R)
• M24: 31,630,226 km (0.088 R)
• M25: 34,230,536 km (0.065 R)
• M26: 35,719,633 km (0.084 R)
• M27: 38,536,860 km (0.094 R)
• M28: 40,594,729 km (0.095 R)
• M29: 46,547,527 km (0.053 R)
• M30: 55,231,235 km (0.049 R)
• M31: 55,969,201 km (0.114 R)
• M32: 58,413,181 km (0.113 R)
• M33: 61,320,317 km (0.056 R)
• M34: 63,110,106 km (0.058 R)
• M35: 63,311,016 km (0.079 R)
• M36: 66,793,504 km (0.032 R)
• M37: 69,113,767 km (0.113 R)
• M38: 70,401,656 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.9

Radius: 4.3

Gravity: 28.77 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 13.51 AU - 13.75 AU

Year: 19162 Days

Day: 24.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,968,341 km

• M1: 121,324 km (0.052 R)
• M2: 278,102 km (0.106 R)
• M3: 417,528 km (0.102 R)
• M4: 682,465 km (0.113 R)
• M5: 1,317,359 km (0.11 R)
• M6: 2,561,265 km (0.054 R)
• M7: 3,438,058 km (0.035 R)
• M8: 4,175,875 km (0.112 R)
• M9: 4,803,139 km (0.119 R)
• M10: 5,267,042 km (0.057 R)
• M11: 6,242,270 km (0.116 R)
• M12: 6,578,118 km (0.101 R)
• M13: 6,794,286 km (0.094 R)
• M14: 7,149,731 km (0.055 R)
• M15: 9,222,410 km (0.098 R)
• M16: 10,337,063 km (0.083 R)
• M17: 17,940,525 km (0.081 R)
• M18: 31,179,787 km (0.075 R)
• M19: 31,666,728 km (0.083 R)
• M20: 31,912,218 km (0.12 R)
• M21: 32,531,104 km (0.071 R)
• M22: 34,436,233 km (0.058 R)
• M23: 36,683,642 km (0.095 R)
• M24: 38,466,699 km (0.081 R)
• M25: 52,080,404 km (0.11 R)
• M26: 52,765,712 km (0.06 R)
• M27: 54,154,280 km (0.119 R)
• M28: 55,034,513 km (0.086 R)
• M29: 55,389,210 km (0.075 R)
• M30: 56,823,255 km (0.117 R)
• M31: 59,578,698 km (0.054 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 18,791 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit