🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.68 AU - 0.98 AU

Year: 276 Days

Day: 14.9 Hours

Environment

Temp: 146 °C

Axial Tilt: 33.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,400,323 km

• M1: 48,470 km (0.066 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.54 AU - 1.96 AU

Year: 846 Days

Day: 15.7 Hours

Environment

Temp: -53 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,400,323 km

• M1: 43,683 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.68 AU - 1.82 AU

Year: 846 Days

Day: 39.4 Hours

Environment

Temp: -52 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,400,323 km

• M1: 323,879 km (0.066 R)
• M2: 735,872 km (0.118 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.73 AU - 1.93 AU

Year: 904 Days

Day: 30.8 Hours

Environment

Temp: -62 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.89 AU - 2.01 AU

Year: 995 Days

Day: 19.5 Hours

Environment

Temp: -61 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.58 AU - 2.86 AU

Year: 1638 Days

Day: 31.3 Hours

Environment

Temp: -91 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.04 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.1

Radius: 9.6

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 7.02 AU - 11.68 AU

Year: 10443 Days

Day: 13.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,400,323 km

• M1: 119,828 km (0.109 R)
• M2: 505,641 km (0.104 R)
• M3: 1,050,775 km (0.027 R)
• M4: 1,435,092 km (0.11 R)
• M5: 2,423,934 km (0.073 R)
• M6: 2,807,354 km (0.042 R)
• M7: 3,790,810 km (0.117 R)
• M8: 6,155,653 km (0.085 R)
• M9: 6,628,382 km (0.094 R)
• M10: 9,278,060 km (0.096 R)
• M11: 11,227,919 km (0.063 R)
• M12: 11,628,242 km (0.063 R)
• M13: 12,089,902 km (0.079 R)
• M14: 13,604,879 km (0.065 R)
• M15: 18,625,683 km (0.107 R)
• M16: 19,329,242 km (0.062 R)
• M17: 21,931,945 km (0.04 R)
• M18: 22,716,437 km (0.092 R)
• M19: 27,190,161 km (0.111 R)
• M20: 29,020,641 km (0.041 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 10,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit