🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.41 AU - 0.61 AU

Year: 139 Days

Day: 24.1 Hours

Environment

Temp: 199 °C

Axial Tilt: 36.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.81 AU - 0.85 AU

Year: 288 Days

Day: 31.1 Hours

Environment

Temp: 49 °C

Axial Tilt: 6.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 61,165,205 km

• M1: 154,684 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.92 AU - 1.38 AU

Year: 470 Days

Day: 26.6 Hours

Environment

Temp: -10 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 61,165,205 km

• M1: 79,586 km (0.043 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.01 AU - 1.41 AU

Year: 507 Days

Day: 34.8 Hours

Environment

Temp: -31 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.93 AU - 2.07 AU

Year: 1077 Days

Day: 13.9 Hours

Environment

Temp: -78 °C

Axial Tilt: 48.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.78 AU - 2.92 AU

Year: 1832 Days

Day: 36.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,165,205 km

• M1: 97,687 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.7

Radius: 5.8

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 14.08 AU - 18.86 AU

Year: 25453 Days

Day: 24.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,165,205 km

• M1: 72,854 km (0.111 R)
• M2: 916,736 km (0.097 R)
• M3: 1,456,784 km (0.028 R)
• M4: 2,410,321 km (0.093 R)
• M5: 2,994,351 km (0.119 R)
• M6: 3,477,702 km (0.085 R)
• M7: 4,344,621 km (0.09 R)
• M8: 5,826,837 km (0.113 R)
• M9: 10,403,784 km (0.045 R)
• M10: 11,869,245 km (0.119 R)
• M11: 13,202,311 km (0.099 R)
• M12: 14,562,006 km (0.119 R)
• M13: 14,773,687 km (0.091 R)
• M14: 14,987,463 km (0.101 R)
• M15: 19,112,774 km (0.047 R)
• M16: 20,316,737 km (0.065 R)
• M17: 24,034,244 km (0.117 R)
• M18: 24,330,149 km (0.073 R)
• M19: 27,102,796 km (0.075 R)
• M20: 27,963,133 km (0.109 R)
• M21: 33,388,599 km (0.107 R)
• M22: 34,004,045 km (0.046 R)
• M23: 47,799,811 km (0.099 R)
• M24: 60,982,076 km (0.103 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 18,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit