🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.49 AU - 0.59 AU

Year: 139 Days

Day: 22.5 Hours

Environment

Temp: 193 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.48 AU - 0.68 AU

Year: 155 Days

Day: 34 Hours

Environment

Temp: 175 °C

Axial Tilt: 12 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.67 AU - 0.87 AU

Year: 236 Days

Day: 33.6 Hours

Environment

Temp: 133 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.76 AU - 0.78 AU

Year: 236 Days

Day: 41.8 Hours

Environment

Temp: 123 °C

Axial Tilt: 49.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 29,176,116 km

• M1: 507,586 km (0.078 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3 AU - 3.3 AU

Year: 1956 Days

Day: 38.1 Hours

Environment

Temp: -103 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.32 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.8

Radius: 13.4

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.83 AU - 8.15 AU

Year: 7171 Days

Day: 14.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,176,116 km

• M1: 167,101 km (0.076 R)
• M2: 614,548 km (0.051 R)
• M3: 1,032,824 km (0.1 R)
• M4: 1,755,232 km (0.069 R)
• M5: 2,224,820 km (0.101 R)
• M6: 3,119,265 km (0.093 R)
• M7: 3,955,368 km (0.034 R)
• M8: 4,855,199 km (0.067 R)
• M9: 8,660,520 km (0.102 R)
• M10: 9,106,022 km (0.099 R)
• M11: 9,652,354 km (0.09 R)
• M12: 10,626,834 km (0.104 R)
• M13: 12,823,230 km (0.113 R)
• M14: 14,446,367 km (0.096 R)
• M15: 17,707,002 km (0.101 R)
• M16: 19,302,613 km (0.036 R)
• M17: 25,562,237 km (0.049 R)
• M18: 28,034,641 km (0.095 R)
• M19: 29,738,561 km (0.101 R)
• M20: 31,037,519 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.6

Radius: 6.6

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 13.33 AU - 20.71 AU

Year: 24565 Days

Day: 24.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,176,116 km

• M1: 125,213 km (0.089 R)
• M2: 1,026,541 km (0.093 R)
• M3: 1,755,381 km (0.083 R)
• M4: 2,379,205 km (0.079 R)
• M5: 9,515,621 km (0.096 R)
• M6: 14,645,632 km (0.092 R)
• M7: 16,597,734 km (0.085 R)
• M8: 17,511,628 km (0.091 R)
• M9: 21,647,111 km (0.09 R)
• M10: 26,717,581 km (0.087 R)

Kuiper Belt

Range: 31.4 - 57.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 16,227 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit