🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.51 AU - 0.79 AU

Year: 190 Days

Day: 39.6 Hours

Environment

Temp: 133 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.85 AU - 0.93 AU

Year: 304 Days

Day: 43.8 Hours

Environment

Temp: 98 °C

Axial Tilt: 48.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 16,695,693 km

• M1: 269,875 km (0.105 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.05 AU - 1.15 AU

Year: 417 Days

Day: 38.1 Hours

Environment

Temp: 9 °C

Axial Tilt: 1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 16,695,693 km

• M1: 237,412 km (0.111 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.03 AU - 1.51 AU

Year: 518 Days

Day: 23.5 Hours

Environment

Temp: 8 °C

Axial Tilt: 10.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.88 AU - 2.24 AU

Year: 1069 Days

Day: 23.1 Hours

Environment

Temp: -62 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 16,695,693 km

• M1: 696,079 km (0.086 R)
• M2: 1,549,086 km (0.072 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2 AU - 2.57 AU

Year: 1245 Days

Day: 21.3 Hours

Environment

Temp: -82 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3 AU - 5 AU

Year: 2893 Days

Day: 29.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,695,693 km

• M1: 61,036 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.6

Radius: 14

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.64 AU - 6.24 AU

Year: 5236 Days

Day: 6.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,695,693 km

• M1: 174,132 km (0.067 R)
• M2: 997,519 km (0.078 R)
• M3: 1,639,892 km (0.103 R)
• M4: 2,430,816 km (0.118 R)
• M5: 3,266,170 km (0.076 R)
• M6: 4,305,277 km (0.104 R)
• M7: 5,300,552 km (0.057 R)
• M8: 7,658,065 km (0.054 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 13,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit