🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.18 AU - 1.24 AU

Year: 489 Days

Day: 45.3 Hours

Environment

Temp: -2 °C

Axial Tilt: 5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.35 AU - 1.81 AU

Year: 729 Days

Day: 29.7 Hours

Environment

Temp: -40 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.05 AU - 3.81 AU

Year: 2332 Days

Day: 17.2 Hours

Environment

Temp: -117 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.21 AU - 3.81 AU

Year: 2414 Days

Day: 24.9 Hours

Environment

Temp: -109 °C

Axial Tilt: 148.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,552,332 km

• M1: 61,335 km (0.114 R)

Asteroid Belt

Center: 5.73 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.2

Radius: 12.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.76 AU - 9.14 AU

Year: 8229 Days

Day: 10.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 149.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,552,332 km

• M1: 155,582 km (0.114 R)
• M2: 1,954,347 km (0.118 R)
• M3: 3,070,795 km (0.098 R)
• M4: 4,704,853 km (0.048 R)
• M5: 8,209,183 km (0.107 R)
• M6: 12,126,852 km (0.116 R)
• M7: 12,690,986 km (0.065 R)
• M8: 13,817,009 km (0.115 R)
• M9: 18,319,007 km (0.078 R)
• M10: 19,476,596 km (0.062 R)
• M11: 20,037,887 km (0.071 R)
• M12: 33,064,271 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.5

Radius: 6.5

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 16.29 AU - 22.35 AU

Year: 31173 Days

Day: 19.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,552,332 km

• M1: 84,972 km (0.099 R)
• M2: 558,449 km (0.107 R)
• M3: 843,732 km (0.06 R)
• M4: 5,936,941 km (0.093 R)
• M5: 12,742,148 km (0.101 R)
• M6: 24,067,754 km (0.113 R)
• M7: 27,032,036 km (0.056 R)
• M8: 28,501,686 km (0.077 R)
• M9: 39,685,772 km (0.047 R)
• M10: 42,486,394 km (0.109 R)
• M11: 43,009,388 km (0.12 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 13,562 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit