🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.81 AU - 1.05 AU

Year: 373 Days

Day: 21 Hours

Environment

Temp: -34 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.08 AU - 1.46 AU

Year: 596 Days

Day: 42.9 Hours

Environment

Temp: -60 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,548,422 km

• M1: 23,038 km (0.042 R)
• M2: 382,223 km (0.085 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.02 AU - 2.2 AU

Year: 1276 Days

Day: 24.9 Hours

Environment

Temp: -103 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,548,422 km

• M1: 56,698 km (0.089 R)
• M2: 543,190 km (0.082 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.23 AU - 2.55 AU

Year: 1538 Days

Day: 29.4 Hours

Environment

Temp: -110 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.6

Radius: 11.5

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4 AU - 5.42 AU

Year: 4255 Days

Day: 8.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,548,422 km

• M1: 143,016 km (0.112 R)
• M2: 842,535 km (0.115 R)
• M3: 1,259,165 km (0.046 R)
• M4: 2,335,522 km (0.094 R)
• M5: 4,001,145 km (0.081 R)
• M6: 5,668,263 km (0.091 R)
• M7: 6,198,737 km (0.046 R)
• M8: 9,935,243 km (0.062 R)
• M9: 11,257,389 km (0.097 R)
• M10: 14,645,183 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.1

Radius: 13.5

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.24 AU - 10.08 AU

Year: 12497 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,548,422 km

• M1: 167,849 km (0.092 R)
• M2: 773,720 km (0.102 R)
• M3: 2,221,229 km (0.068 R)
• M4: 3,503,133 km (0.12 R)
• M5: 4,105,115 km (0.076 R)
• M6: 4,544,335 km (0.054 R)
• M7: 5,137,640 km (0.056 R)
• M8: 5,748,747 km (0.051 R)
• M9: 6,265,308 km (0.076 R)
• M10: 6,850,236 km (0.097 R)
• M11: 10,142,736 km (0.106 R)
• M12: 12,187,888 km (0.102 R)
• M13: 13,337,398 km (0.026 R)
• M14: 17,432,640 km (0.071 R)
• M15: 19,804,065 km (0.105 R)
• M16: 22,215,882 km (0.11 R)
• M17: 26,191,595 km (0.065 R)
• M18: 29,091,251 km (0.114 R)
• M19: 33,501,695 km (0.11 R)
• M20: 36,561,121 km (0.057 R)
• M21: 42,451,986 km (0.045 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 17,820 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit