🌌 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: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.7 AU - 0.88 AU

Year: 269 Days

Day: 44 Hours

Environment

Temp: 146 °C

Axial Tilt: 3.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.41 AU - 1.95 AU

Year: 834 Days

Day: 21.3 Hours

Environment

Temp: -59 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 27,023,422 km

• M1: 39,943 km (0.087 R)
• M2: 593,904 km (0.073 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.63 AU - 2.01 AU

Year: 940 Days

Day: 15.7 Hours

Environment

Temp: -65 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.7 AU - 2.46 AU

Year: 1149 Days

Day: 15 Hours

Environment

Temp: -92 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 27,023,422 km

• M1: 555,457 km (0.071 R)
• M2: 565,779 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.71 AU - 2.95 AU

Year: 1823 Days

Day: 46.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.52 AU - 4.12 AU

Year: 2316 Days

Day: 14.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,023,422 km

• M1: 531,970 km (0.113 R)

Asteroid Belt

Center: 4.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.8

Radius: 14.4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.31 AU - 5.73 AU

Year: 4966 Days

Day: 5 Hours

Environment

Temp: -145 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,023,422 km

• M1: 179,368 km (0.092 R)
• M2: 820,395 km (0.059 R)
• M3: 2,528,653 km (0.097 R)
• M4: 5,580,898 km (0.043 R)
• M5: 6,576,771 km (0.12 R)
• M6: 7,348,995 km (0.048 R)
• M7: 10,579,113 km (0.077 R)
• M8: 15,807,409 km (0.085 R)
• M9: 18,224,461 km (0.041 R)
• M10: 21,219,112 km (0.101 R)
• M11: 24,077,927 km (0.066 R)
• M12: 25,136,631 km (0.111 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 340 - 15,899 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit