🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.55 AU - 0.73 AU

Year: 196 Days

Day: 28.3 Hours

Environment

Temp: 138 °C

Axial Tilt: 25.1 °

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: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.62 AU - 0.89 AU

Year: 249 Days

Day: 26.6 Hours

Environment

Temp: 92 °C

Axial Tilt: 11.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 31,322,105 km

• M1: 215,720 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.06 AU - 1.1 AU

Year: 430 Days

Day: 28.4 Hours

Environment

Temp: 7 °C

Axial Tilt: 32.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 31,322,105 km

• M1: 1,042,847 km (0.052 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.32 AU - 2.04 AU

Year: 834 Days

Day: 12.9 Hours

Environment

Temp: -63 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.97 AU - 2.23 AU

Year: 1165 Days

Day: 27.3 Hours

Environment

Temp: -87 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.4

Radius: 9.9

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.26 AU - 5.48 AU

Year: 4115 Days

Day: 13.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,322,105 km

• M1: 123,867 km (0.098 R)
• M2: 526,136 km (0.117 R)
• M3: 1,257,071 km (0.104 R)
• M4: 2,007,753 km (0.115 R)
• M5: 2,337,766 km (0.088 R)
• M6: 2,721,933 km (0.09 R)
• M7: 3,109,392 km (0.105 R)
• M8: 3,792,904 km (0.092 R)
• M9: 5,069,423 km (0.107 R)
• M10: 5,717,481 km (0.066 R)
• M11: 8,219,356 km (0.078 R)
• M12: 10,553,232 km (0.049 R)
• M13: 11,234,202 km (0.108 R)
• M14: 14,473,145 km (0.042 R)
• M15: 15,485,773 km (0.114 R)
• M16: 15,892,081 km (0.106 R)
• M17: 16,365,109 km (0.099 R)
• M18: 16,969,634 km (0.106 R)
• M19: 18,741,472 km (0.117 R)
• M20: 21,697,825 km (0.1 R)
• M21: 27,237,135 km (0.097 R)
• M22: 28,690,927 km (0.085 R)
• M23: 29,128,201 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.8

Radius: 4.3

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 10.52 AU - 13.88 AU

Year: 16316 Days

Day: 18.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 52.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,322,105 km

• M1: 55,501 km (0.112 R)
• M2: 372,947 km (0.095 R)
• M3: 1,865,785 km (0.086 R)
• M4: 2,420,045 km (0.071 R)
• M5: 3,598,726 km (0.077 R)
• M6: 4,201,307 km (0.083 R)
• M7: 5,574,166 km (0.106 R)
• M8: 7,362,310 km (0.063 R)
• M9: 13,297,755 km (0.059 R)
• M10: 14,328,634 km (0.111 R)
• M11: 16,548,068 km (0.114 R)
• M12: 20,929,341 km (0.113 R)
• M13: 21,289,572 km (0.025 R)
• M14: 21,727,445 km (0.081 R)
• M15: 22,245,802 km (0.036 R)
• M16: 22,848,232 km (0.091 R)
• M17: 24,962,050 km (0.115 R)
• M18: 29,483,197 km (0.059 R)
• M19: 29,936,030 km (0.106 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 18,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit