🌌 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: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.6 AU - 0.6 AU

Year: 175 Days

Day: 17.6 Hours

Environment

Temp: 182 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.61 AU - 0.81 AU

Year: 225 Days

Day: 41.5 Hours

Environment

Temp: 112 °C

Axial Tilt: 48.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.82 AU - 1.19 AU

Year: 377 Days

Day: 23 Hours

Environment

Temp: 17 °C

Axial Tilt: 7.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 36,143,248 km

• M1: 305,928 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.17 AU - 1.45 AU

Year: 565 Days

Day: 16.5 Hours

Environment

Temp: -36 °C

Axial Tilt: 9.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.42 AU - 1.46 AU

Year: 651 Days

Day: 19.3 Hours

Environment

Temp: -36 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.47 AU - 1.87 AU

Year: 813 Days

Day: 41.1 Hours

Environment

Temp: -56 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,143,248 km

• M1: 437,424 km (0.08 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.78 AU - 1.84 AU

Year: 917 Days

Day: 22.7 Hours

Environment

Temp: -63 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.19 AU - 3.79 AU

Year: 2456 Days

Day: 45.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.9

Radius: 9.4

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5.6 AU - 6.84 AU

Year: 5844 Days

Day: 14 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 36,143,248 km

• M1: 117,135 km (0.102 R)
• M2: 532,718 km (0.075 R)
• M3: 899,233 km (0.12 R)
• M4: 1,275,471 km (0.036 R)
• M5: 1,756,129 km (0.099 R)
• M6: 2,320,413 km (0.099 R)
• M7: 2,748,113 km (0.119 R)
• M8: 3,061,969 km (0.044 R)
• M9: 3,532,903 km (0.1 R)
• M10: 4,924,014 km (0.079 R)
• M11: 5,389,862 km (0.117 R)
• M12: 5,789,737 km (0.101 R)
• M13: 6,275,780 km (0.091 R)
• M14: 6,859,212 km (0.065 R)
• M15: 7,937,513 km (0.112 R)
• M16: 9,829,178 km (0.086 R)
• M17: 10,616,213 km (0.103 R)
• M18: 11,147,585 km (0.095 R)
• M19: 13,732,486 km (0.095 R)
• M20: 17,147,656 km (0.067 R)
• M21: 19,121,301 km (0.11 R)
• M22: 20,053,445 km (0.106 R)
• M23: 22,872,168 km (0.112 R)
• M24: 23,191,859 km (0.061 R)
• M25: 26,643,680 km (0.094 R)
• M26: 28,722,642 km (0.07 R)
• M27: 30,616,401 km (0.062 R)
• M28: 32,290,401 km (0.093 R)
• M29: 33,098,978 km (0.08 R)
• M30: 34,232,630 km (0.107 R)
• M31: 34,967,455 km (0.098 R)
• M32: 36,143,294 km (0.099 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 18,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit