🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.75 AU - 0.85 AU

Year: 272 Days

Day: 41.3 Hours

Environment

Temp: 159 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 99,484,610 km

• M1: 293,062 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.73 AU - 0.99 AU

Year: 304 Days

Day: 34.8 Hours

Environment

Temp: 26 °C

Axial Tilt: 38.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.04 AU - 1.44 AU

Year: 526 Days

Day: 39.4 Hours

Environment

Temp: -25 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.62 AU - 1.72 AU

Year: 822 Days

Day: 30.8 Hours

Environment

Temp: -64 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.88 AU - 2.74 AU

Year: 1337 Days

Day: 44.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,484,610 km

• M1: 87,814 km (0.082 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.78 AU - 3.12 AU

Year: 1929 Days

Day: 43.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.68 AU - 3.7 AU

Year: 2699 Days

Day: 33 Hours

Environment

Temp: -120 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,484,610 km

• M1: 41,887 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966.3

Radius: 5.3

Gravity: 34.4 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 13.55 AU - 19.15 AU

Year: 25175 Days

Day: 16.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 99,484,610 km

• M1: 66,421 km (0.067 R)
• M2: 589,715 km (0.093 R)
• M3: 1,053,917 km (0.039 R)
• M4: 1,323,492 km (0.097 R)
• M5: 1,833,472 km (0.1 R)
• M6: 3,638,669 km (0.059 R)
• M7: 3,837,185 km (0.064 R)
• M8: 4,113,044 km (0.106 R)
• M9: 5,142,726 km (0.115 R)
• M10: 6,818,222 km (0.048 R)
• M11: 8,885,964 km (0.069 R)
• M12: 11,198,897 km (0.105 R)
• M13: 12,124,159 km (0.115 R)
• M14: 18,574,670 km (0.105 R)
• M15: 19,564,260 km (0.116 R)
• M16: 23,531,595 km (0.111 R)
• M17: 23,990,263 km (0.106 R)
• M18: 26,619,595 km (0.057 R)
• M19: 28,003,674 km (0.104 R)
• M20: 29,700,413 km (0.048 R)
• M21: 31,602,999 km (0.034 R)
• M22: 35,799,518 km (0.033 R)
• M23: 37,019,339 km (0.085 R)
• M24: 47,609,074 km (0.07 R)
• M25: 48,711,909 km (0.092 R)
• M26: 50,397,727 km (0.056 R)
• M27: 56,298,017 km (0.102 R)
• M28: 61,121,352 km (0.026 R)
• M29: 63,522,547 km (0.114 R)
• M30: 73,026,350 km (0.112 R)
• M31: 73,269,297 km (0.11 R)
• M32: 76,476,675 km (0.057 R)
• M33: 76,727,252 km (0.059 R)
• M34: 77,988,063 km (0.061 R)
• M35: 89,963,372 km (0.116 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: 390 - 14,110 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit