🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.8 AU - 1.26 AU

Year: 463 Days

Day: 17.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.03 AU - 1.09 AU

Year: 483 Days

Day: 19.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 78.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.19 AU - 1.55 AU

Year: 710 Days

Day: 25.9 Hours

Environment

Temp: -104 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.35 AU - 1.51 AU

Year: 757 Days

Day: 34.4 Hours

Environment

Temp: -106 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.7 AU - 2.16 AU

Year: 1188 Days

Day: 24 Hours

Environment

Temp: -122 °C

Axial Tilt: 160.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,931,546 km

• M1: 110,852 km (0.063 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.99 AU - 2.17 AU

Year: 1329 Days

Day: 35.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 29,931,546 km

• M1: 75,248 km (0.112 R)
• M2: 1,194,240 km (0.12 R)

Asteroid Belt

Center: 3.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.3

Radius: 8.6

Gravity: 12.96 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.54 AU - 5.38 AU

Year: 4172 Days

Day: 5.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 29,931,546 km

• M1: 107,112 km (0.09 R)
• M2: 442,211 km (0.051 R)
• M3: 713,731 km (0.05 R)
• M4: 1,363,884 km (0.105 R)
• M5: 1,704,967 km (0.095 R)
• M6: 2,162,437 km (0.1 R)
• M7: 2,647,583 km (0.083 R)
• M8: 3,086,354 km (0.044 R)
• M9: 3,425,941 km (0.104 R)
• M10: 3,724,239 km (0.063 R)
• M11: 4,597,591 km (0.089 R)
• M12: 5,688,609 km (0.108 R)
• M13: 5,956,239 km (0.086 R)
• M14: 6,484,918 km (0.072 R)
• M15: 7,284,070 km (0.117 R)
• M16: 8,184,649 km (0.054 R)
• M17: 10,076,015 km (0.116 R)
• M18: 11,238,989 km (0.119 R)
• M19: 11,709,175 km (0.098 R)
• M20: 12,192,526 km (0.087 R)
• M21: 13,302,841 km (0.101 R)
• M22: 16,551,209 km (0.084 R)
• M23: 17,910,605 km (0.086 R)
• M24: 18,358,351 km (0.093 R)
• M25: 18,813,578 km (0.12 R)
• M26: 20,780,042 km (0.087 R)
• M27: 21,203,254 km (0.105 R)
• M28: 24,096,627 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 13,791 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit