🌌 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: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.6 AU - 0.6 AU

Year: 168 Days

Day: 31.9 Hours

Environment

Temp: 154 °C

Axial Tilt: 9.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.59 AU - 0.65 AU

Year: 177 Days

Day: 13.9 Hours

Environment

Temp: 149 °C

Axial Tilt: 12.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.62 AU - 0.8 AU

Year: 216 Days

Day: 27.1 Hours

Environment

Temp: 209 °C

Axial Tilt: 121.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.05 AU - 1.23 AU

Year: 440 Days

Day: 26.9 Hours

Environment

Temp: 23 °C

Axial Tilt: 73.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 67,802,042 km

• M1: 31,864 km (0.082 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.19 AU - 1.45 AU

Year: 548 Days

Day: 28.2 Hours

Environment

Temp: 5 °C

Axial Tilt: 20.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.04 AU - 1.66 AU

Year: 567 Days

Day: 20.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 67,802,042 km

• M1: 27,825 km (0.096 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.25 AU - 1.53 AU

Year: 593 Days

Day: 12.2 Hours

Environment

Temp: -18 °C

Axial Tilt: 38.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 8 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.28 AU - 3.18 AU

Year: 1631 Days

Day: 46.4 Hours

Environment

Temp: -84 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,802,042 km

• M1: 313,856 km (0.089 R)

Planet 9 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.94 AU - 3.48 AU

Year: 2080 Days

Day: 21.5 Hours

Environment

Temp: -113 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 10 - Ice Giant

Semi-Major Axis: 12.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.8

Radius: 5.9

Gravity: 20.94 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.73 AU - 15.61 AU

Year: 16310 Days

Day: 21.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,802,042 km

• M1: 75,098 km (0.117 R)
• M2: 267,331 km (0.093 R)
• M3: 691,741 km (0.105 R)
• M4: 974,929 km (0.061 R)
• M5: 1,865,785 km (0.101 R)
• M6: 2,334,624 km (0.067 R)
• M7: 3,286,216 km (0.046 R)
• M8: 7,286,164 km (0.099 R)
• M9: 9,378,440 km (0.101 R)
• M10: 11,465,031 km (0.114 R)
• M11: 13,219,814 km (0.113 R)
• M12: 14,054,271 km (0.096 R)
• M13: 17,579,545 km (0.074 R)
• M14: 36,200,590 km (0.092 R)
• M15: 43,152,553 km (0.114 R)
• M16: 52,469,658 km (0.081 R)
• M17: 57,959,002 km (0.096 R)
• M18: 61,125,989 km (0.097 R)
• M19: 64,799,814 km (0.099 R)

Kuiper Belt

Range: 30.3 - 45.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 19,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit