🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.49 AU - 0.77 AU

Year: 181 Days

Day: 27.4 Hours

Environment

Temp: 223 °C

Axial Tilt: 14.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.74 AU - 0.76 AU

Year: 235 Days

Day: 41.8 Hours

Environment

Temp: 190 °C

Axial Tilt: 33.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 39,409,725 km

• M1: 152,141 km (0.109 R)
• M2: 213,027 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.93 AU - 1.25 AU

Year: 412 Days

Day: 32.8 Hours

Environment

Temp: 33 °C

Axial Tilt: 39.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.93 AU - 2.03 AU

Year: 1008 Days

Day: 28.7 Hours

Environment

Temp: -66 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.6 AU - 2.46 AU

Year: 1046 Days

Day: 33.4 Hours

Environment

Temp: -62 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.91 AU - 3.03 AU

Year: 1404 Days

Day: 38.5 Hours

Environment

Temp: -80 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,409,725 km

• M1: 1,605,933 km (0.061 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.55 AU - 3.83 AU

Year: 2061 Days

Day: 20.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.43 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.2

Radius: 12

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.11 AU - 8.21 AU

Year: 7667 Days

Day: 12.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,409,725 km

• M1: 149,299 km (0.059 R)
• M2: 569,220 km (0.034 R)
• M3: 1,038,359 km (0.072 R)
• M4: 1,485,656 km (0.109 R)
• M5: 1,995,486 km (0.095 R)
• M6: 4,221,054 km (0.067 R)
• M7: 7,166,187 km (0.104 R)
• M8: 9,042,593 km (0.086 R)
• M9: 10,587,789 km (0.1 R)
• M10: 12,072,698 km (0.042 R)
• M11: 13,741,911 km (0.103 R)
• M12: 17,592,410 km (0.097 R)
• M13: 20,180,154 km (0.111 R)
• M14: 24,084,808 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.6

Radius: 7.1

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 18.63 AU - 20.59 AU

Year: 31406 Days

Day: 17.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,409,725 km

• M1: 116,986 km (0.08 R)
• M2: 8,497,009 km (0.1 R)
• M3: 8,969,739 km (0.038 R)
• M4: 13,866,675 km (0.097 R)
• M5: 14,102,442 km (0.096 R)
• M6: 16,810,014 km (0.105 R)
• M7: 17,078,392 km (0.079 R)
• M8: 18,391,861 km (0.108 R)
• M9: 26,793,427 km (0.049 R)
• M10: 33,589,060 km (0.11 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: 268 - 15,074 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit