🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.45 AU - 0.71 AU

Year: 163 Days

Day: 45.9 Hours

Environment

Temp: 173 °C

Axial Tilt: 3.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,663,839 km

• M1: 61,634 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.66 AU - 1.04 AU

Year: 289 Days

Day: 33.4 Hours

Environment

Temp: 107 °C

Axial Tilt: 26.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.73 AU - 1.07 AU

Year: 315 Days

Day: 42.3 Hours

Environment

Temp: 70 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.79 AU - 1.29 AU

Year: 391 Days

Day: 36.4 Hours

Environment

Temp: 26 °C

Axial Tilt: 25.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.1 AU - 1.42 AU

Year: 522 Days

Day: 16.5 Hours

Environment

Temp: -8 °C

Axial Tilt: 25.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 91,663,839 km

• M1: 295,157 km (0.105 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.69 AU - 3.15 AU

Year: 1841 Days

Day: 41.2 Hours

Environment

Temp: -95 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,663,839 km

• M1: 492,476 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.1

Radius: 4.5

Gravity: 27.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 17.03 AU - 20.03 AU

Year: 29430 Days

Day: 16.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 91,663,839 km

• M1: 55,950 km (0.106 R)
• M2: 953,686 km (0.107 R)
• M3: 2,655,063 km (0.108 R)
• M4: 6,277,725 km (0.086 R)
• M5: 7,238,293 km (0.118 R)
• M6: 11,853,986 km (0.095 R)
• M7: 13,617,146 km (0.115 R)
• M8: 16,316,789 km (0.093 R)
• M9: 17,290,372 km (0.072 R)
• M10: 22,314,018 km (0.045 R)
• M11: 34,677,534 km (0.032 R)
• M12: 35,255,431 km (0.093 R)
• M13: 38,703,064 km (0.073 R)
• M14: 41,391,038 km (0.102 R)
• M15: 62,484,188 km (0.076 R)
• M16: 62,910,841 km (0.117 R)
• M17: 67,508,134 km (0.075 R)
• M18: 68,634,905 km (0.051 R)
• M19: 72,794,773 km (0.045 R)
• M20: 75,176,820 km (0.053 R)
• M21: 76,387,066 km (0.108 R)
• M22: 78,350,538 km (0.096 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 13,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit