🌌 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: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.66 AU

Year: 169 Days

Day: 43.8 Hours

Environment

Temp: 148 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.59 AU - 0.67 AU

Year: 182 Days

Day: 15.5 Hours

Environment

Temp: 215 °C

Axial Tilt: 0.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 74,753,613 km

• M1: 50,414 km (0.114 R)
• M2: 136,882 km (0.108 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.71 AU - 0.75 AU

Year: 227 Days

Day: 16.1 Hours

Environment

Temp: 183 °C

Axial Tilt: 24.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.78 AU - 0.88 AU

Year: 275 Days

Day: 15.5 Hours

Environment

Temp: 124 °C

Axial Tilt: 41.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.08 AU - 1.26 AU

Year: 460 Days

Day: 19.7 Hours

Environment

Temp: 16 °C

Axial Tilt: 7.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.39 AU - 1.81 AU

Year: 736 Days

Day: 25.6 Hours

Environment

Temp: -46 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 12.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 978.7

Radius: 6.3

Gravity: 24.66 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 12 AU - 13.24 AU

Year: 16294 Days

Day: 19.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,753,613 km

• M1: 78,539 km (0.076 R)
• M2: 464,950 km (0.066 R)
• M3: 760,107 km (0.113 R)
• M4: 975,079 km (0.109 R)
• M5: 1,468,004 km (0.102 R)
• M6: 2,094,520 km (0.113 R)
• M7: 2,641,749 km (0.057 R)
• M8: 3,922,606 km (0.037 R)
• M9: 4,440,214 km (0.034 R)
• M10: 5,730,346 km (0.099 R)
• M11: 6,614,619 km (0.069 R)
• M12: 12,706,843 km (0.105 R)
• M13: 24,291,253 km (0.093 R)
• M14: 26,468,052 km (0.116 R)
• M15: 31,080,603 km (0.104 R)
• M16: 33,118,425 km (0.073 R)
• M17: 35,108,376 km (0.116 R)
• M18: 37,458,260 km (0.071 R)
• M19: 38,599,542 km (0.098 R)
• M20: 44,496,989 km (0.092 R)
• M21: 46,425,605 km (0.073 R)
• M22: 65,119,355 km (0.09 R)
• M23: 66,146,195 km (0.086 R)
• M24: 69,079,061 km (0.071 R)
• M25: 69,291,789 km (0.059 R)
• M26: 69,504,966 km (0.111 R)
• M27: 70,577,433 km (0.054 R)

Kuiper Belt

Range: 30.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 14,255 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit