🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.51 AU - 0.67 AU

Year: 159 Days

Day: 30.9 Hours

Environment

Temp: 179 °C

Axial Tilt: 19.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.65 AU - 0.91 AU

Year: 241 Days

Day: 22.4 Hours

Environment

Temp: 190 °C

Axial Tilt: 35.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 41,968,787 km

• M1: 54,753 km (0.073 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.88 AU - 1.32 AU

Year: 404 Days

Day: 18.1 Hours

Environment

Temp: 82 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.2 AU - 1.3 AU

Year: 489 Days

Day: 26.3 Hours

Environment

Temp: 33 °C

Axial Tilt: 31 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 41,968,787 km

• M1: 396,285 km (0.106 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.21 AU - 1.35 AU

Year: 507 Days

Day: 46.7 Hours

Environment

Temp: 27 °C

Axial Tilt: 26.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.87 AU - 4.21 AU

Year: 2330 Days

Day: 21 Hours

Environment

Temp: -114 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 13.6

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.46 AU - 5.94 AU

Year: 4761 Days

Day: 14.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,968,787 km

• M1: 173,833 km (0.097 R)
• M2: 608,863 km (0.112 R)
• M3: 1,455,138 km (0.062 R)
• M4: 2,677,203 km (0.112 R)
• M5: 4,029,568 km (0.117 R)
• M6: 4,780,101 km (0.114 R)
• M7: 5,355,005 km (0.093 R)
• M8: 6,001,418 km (0.116 R)
• M9: 9,649,212 km (0.082 R)
• M10: 11,509,911 km (0.105 R)
• M11: 13,375,396 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.4

Radius: 12.4

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.99 AU - 13.41 AU

Year: 13113 Days

Day: 11.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,968,787 km

• M1: 157,377 km (0.108 R)
• M2: 547,079 km (0.07 R)
• M3: 1,052,571 km (0.071 R)
• M4: 1,524,402 km (0.112 R)
• M5: 2,255,188 km (0.098 R)
• M6: 3,386,896 km (0.035 R)
• M7: 3,888,797 km (0.062 R)
• M8: 4,331,307 km (0.104 R)
• M9: 6,344,296 km (0.098 R)
• M10: 7,979,850 km (0.104 R)
• M11: 8,698,518 km (0.06 R)
• M12: 9,645,323 km (0.116 R)
• M13: 10,709,712 km (0.113 R)
• M14: 11,850,844 km (0.098 R)
• M15: 14,619,901 km (0.066 R)
• M16: 21,006,234 km (0.054 R)
• M17: 26,289,432 km (0.071 R)
• M18: 27,689,219 km (0.05 R)
• M19: 32,291,897 km (0.105 R)
• M20: 33,141,314 km (0.111 R)
• M21: 38,910,406 km (0.073 R)
• M22: 40,604,004 km (0.112 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 19,686 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit