🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.76 AU - 0.96 AU

Year: 286 Days

Day: 36.9 Hours

Environment

Temp: 168 °C

Axial Tilt: 30 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.95 AU - 1.29 AU

Year: 425 Days

Day: 37.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 7.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 57,011,559 km

• M1: 485,894 km (0.103 R)
• M2: 508,932 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.03 AU - 1.41 AU

Year: 483 Days

Day: 18 Hours

Environment

Temp: 17 °C

Axial Tilt: 34.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.6 AU - 1.6 AU

Year: 725 Days

Day: 33.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.63 AU - 1.95 AU

Year: 858 Days

Day: 13.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,011,559 km

• M1: 1,618,948 km (0.03 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.06 AU - 4.14 AU

Year: 2446 Days

Day: 16.9 Hours

Environment

Temp: -105 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 57,011,559 km

• M1: 971,189 km (0.026 R)
• M2: 2,359,158 km (0.085 R)

Asteroid Belt

Center: 11.89 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 20.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.5

Radius: 7.7

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 17.69 AU - 22.65 AU

Year: 32444 Days

Day: 21.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,011,559 km

• M1: 95,743 km (0.092 R)
• M2: 677,379 km (0.103 R)
• M3: 1,216,081 km (0.094 R)
• M4: 1,571,825 km (0.086 R)
• M5: 2,178,594 km (0.049 R)
• M6: 4,282,538 km (0.049 R)
• M7: 5,492,486 km (0.119 R)
• M8: 7,557,236 km (0.035 R)
• M9: 8,237,906 km (0.119 R)
• M10: 8,617,286 km (0.092 R)
• M11: 10,470,654 km (0.106 R)
• M12: 11,200,692 km (0.099 R)
• M13: 12,024,378 km (0.101 R)
• M14: 12,951,136 km (0.113 R)
• M15: 16,236,754 km (0.073 R)
• M16: 19,701,591 km (0.093 R)
• M17: 20,294,896 km (0.031 R)
• M18: 23,441,089 km (0.062 R)
• M19: 28,051,097 km (0.092 R)
• M20: 31,938,846 km (0.115 R)
• M21: 34,803,047 km (0.11 R)
• M22: 37,060,329 km (0.087 R)
• M23: 47,067,978 km (0.102 R)
• M24: 47,975,140 km (0.032 R)
• M25: 53,173,965 km (0.079 R)
• M26: 53,664,496 km (0.089 R)
• M27: 54,820,589 km (0.052 R)

Kuiper Belt

Range: 30.6 - 45.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 148 - 12,828 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit