🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.44 AU - 0.72 AU

Year: 160 Days

Day: 18.9 Hours

Environment

Temp: 171 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.88 AU - 0.92 AU

Year: 309 Days

Day: 18.8 Hours

Environment

Temp: 161 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 34,781,375 km

• M1: 55,501 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.21 AU - 1.21 AU

Year: 481 Days

Day: 21.9 Hours

Environment

Temp: 8 °C

Axial Tilt: 41.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 34,781,375 km

• M1: 43,084 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.41 AU - 1.73 AU

Year: 711 Days

Day: 46.5 Hours

Environment

Temp: -33 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.65 AU - 2.09 AU

Year: 925 Days

Day: 16.1 Hours

Environment

Temp: -60 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,781,375 km

• M1: 839,842 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.91 AU - 2.05 AU

Year: 1008 Days

Day: 34.3 Hours

Environment

Temp: -70 °C

Axial Tilt: 41.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.97 AU - 3.53 AU

Year: 2119 Days

Day: 23.7 Hours

Environment

Temp: -97 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.5

Radius: 8.8

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 8.21 AU - 8.35 AU

Year: 8617 Days

Day: 5.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,781,375 km

• M1: 109,506 km (0.119 R)
• M2: 408,103 km (0.069 R)
• M3: 791,822 km (0.113 R)
• M4: 1,332,917 km (0.079 R)
• M5: 1,809,386 km (0.102 R)
• M6: 2,262,518 km (0.117 R)
• M7: 2,733,602 km (0.095 R)
• M8: 4,417,476 km (0.033 R)
• M9: 7,302,919 km (0.052 R)
• M10: 8,372,694 km (0.09 R)
• M11: 11,598,772 km (0.075 R)
• M12: 12,052,951 km (0.115 R)
• M13: 14,736,587 km (0.08 R)
• M14: 15,150,076 km (0.111 R)
• M15: 21,252,322 km (0.043 R)
• M16: 26,757,374 km (0.094 R)
• M17: 27,818,472 km (0.102 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 20,377 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit