🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.67 AU - 0.73 AU

Year: 210 Days

Day: 29 Hours

Environment

Temp: 143 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.63 AU - 0.77 AU

Year: 210 Days

Day: 43.1 Hours

Environment

Temp: 137 °C

Axial Tilt: 39.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.93 AU - 1.01 AU

Year: 342 Days

Day: 33.8 Hours

Environment

Temp: 158 °C

Axial Tilt: 48.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.06 AU - 1.26 AU

Year: 447 Days

Day: 25.9 Hours

Environment

Temp: 26 °C

Axial Tilt: 15.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.05 AU - 1.49 AU

Year: 513 Days

Day: 29.1 Hours

Environment

Temp: -8 °C

Axial Tilt: 10.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.22 AU - 1.54 AU

Year: 581 Days

Day: 29.7 Hours

Environment

Temp: -2 °C

Axial Tilt: 0.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.6 AU - 2.48 AU

Year: 1044 Days

Day: 31.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,051,869 km

• M1: 72,405 km (0.098 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.69 AU - 2.83 AU

Year: 1642 Days

Day: 16.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 4.14 AU - 4.26 AU

Year: 3083 Days

Day: 15.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,051,869 km

• M1: 472,280 km (0.114 R)

Asteroid Belt

Center: 7.2 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Gas Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.9

Radius: 10.1

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 8.32 AU - 12.08 AU

Year: 11667 Days

Day: 5.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,051,869 km

• M1: 125,961 km (0.067 R)
• M2: 618,587 km (0.113 R)
• M3: 1,814,024 km (0.111 R)
• M4: 2,204,923 km (0.067 R)
• M5: 2,784,316 km (0.098 R)
• M6: 3,159,058 km (0.107 R)
• M7: 3,729,774 km (0.118 R)
• M8: 5,495,328 km (0.117 R)
• M9: 6,322,006 km (0.071 R)
• M10: 7,229,317 km (0.069 R)
• M11: 7,805,119 km (0.083 R)
• M12: 8,315,846 km (0.079 R)
• M13: 10,363,542 km (0.067 R)
• M14: 12,413,332 km (0.096 R)
• M15: 15,937,708 km (0.094 R)
• M16: 18,007,694 km (0.109 R)
• M17: 18,409,813 km (0.069 R)
• M18: 18,900,195 km (0.066 R)
• M19: 19,399,403 km (0.112 R)
• M20: 21,126,959 km (0.095 R)
• M21: 23,237,785 km (0.104 R)
• M22: 23,618,811 km (0.063 R)
• M23: 25,586,472 km (0.088 R)
• M24: 29,957,722 km (0.12 R)
• M25: 31,557,521 km (0.093 R)
• M26: 39,737,084 km (0.103 R)
• M27: 40,419,250 km (0.111 R)
• M28: 42,512,573 km (0.08 R)
• M29: 43,513,832 km (0.104 R)
• M30: 48,912,819 km (0.082 R)
• M31: 52,097,010 km (0.058 R)

Kuiper Belt

Range: 30.6 - 48.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 12,488 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit