🌌 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: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.73 AU - 0.97 AU

Year: 278 Days

Day: 31.8 Hours

Environment

Temp: 140 °C

Axial Tilt: 37.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.25 AU - 1.41 AU

Year: 544 Days

Day: 26.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 23.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 30,435,557 km

• M1: 41,588 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.53 AU - 2.15 AU

Year: 885 Days

Day: 42.3 Hours

Environment

Temp: -51 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,435,557 km

• M1: 65,374 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.3 AU - 2.82 AU

Year: 1453 Days

Day: 36.1 Hours

Environment

Temp: -75 °C

Axial Tilt: 8.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.34 AU - 3.44 AU

Year: 2214 Days

Day: 41.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 48.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.56 AU - 5.62 AU

Year: 3489 Days

Day: 25.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 17 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,435,557 km

• M1: 24,085 km (0.032 R)

Asteroid Belt

Center: 5.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.1

Radius: 11.7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.81 AU - 7.45 AU

Year: 6056 Days

Day: 6.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,435,557 km

• M1: 146,905 km (0.117 R)
• M2: 671,694 km (0.087 R)
• M3: 1,128,716 km (0.104 R)
• M4: 1,781,411 km (0.092 R)
• M5: 2,979,990 km (0.116 R)
• M6: 10,669,171 km (0.107 R)
• M7: 11,310,497 km (0.081 R)
• M8: 14,190,555 km (0.071 R)
• M9: 16,603,269 km (0.11 R)
• M10: 16,969,036 km (0.07 R)
• M11: 21,427,202 km (0.082 R)
• M12: 28,047,656 km (0.119 R)

Kuiper Belt

Range: 30.9 - 49.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 15,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit