🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.61 AU - 0.75 AU

Year: 196 Days

Day: 43.8 Hours

Environment

Temp: 201 °C

Axial Tilt: 44 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.63 AU - 0.87 AU

Year: 227 Days

Day: 16.8 Hours

Environment

Temp: 213 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.24 AU - 1.82 AU

Year: 662 Days

Day: 17.4 Hours

Environment

Temp: -21 °C

Axial Tilt: 139.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.68 AU - 2.22 AU

Year: 953 Days

Day: 29.6 Hours

Environment

Temp: -40 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.35 AU - 2.91 AU

Year: 1492 Days

Day: 26.8 Hours

Environment

Temp: -71 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,143,241 km

• M1: 13,613 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.89 AU - 3.25 AU

Year: 1882 Days

Day: 39.1 Hours

Environment

Temp: -84 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,143,241 km

• M1: 399,875 km (0.111 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.8 AU - 4.16 AU

Year: 2271 Days

Day: 42.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 52.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.4

Radius: 11.2

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.49 AU - 8.05 AU

Year: 6163 Days

Day: 7.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,143,241 km

• M1: 139,276 km (0.108 R)
• M2: 496,815 km (0.118 R)
• M3: 986,748 km (0.108 R)
• M4: 1,382,883 km (0.063 R)
• M5: 2,167,673 km (0.086 R)
• M6: 2,999,437 km (0.072 R)
• M7: 3,468,726 km (0.073 R)
• M8: 3,896,875 km (0.047 R)
• M9: 4,912,345 km (0.109 R)
• M10: 5,798,264 km (0.103 R)
• M11: 6,341,753 km (0.078 R)
• M12: 7,495,751 km (0.106 R)
• M13: 8,178,216 km (0.095 R)
• M14: 8,862,627 km (0.049 R)
• M15: 9,502,606 km (0.088 R)
• M16: 10,696,547 km (0.043 R)
• M17: 13,903,177 km (0.102 R)
• M18: 14,602,847 km (0.072 R)
• M19: 16,366,306 km (0.097 R)
• M20: 20,793,655 km (0.106 R)
• M21: 21,852,060 km (0.111 R)
• M22: 25,321,983 km (0.109 R)
• M23: 27,689,070 km (0.11 R)

Kuiper Belt

Range: 31.4 - 56.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 19,147 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit