🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.54 AU - 0.66 AU

Year: 171 Days

Day: 43.4 Hours

Environment

Temp: 212 °C

Axial Tilt: 23.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,866,447 km

• M1: 50,714 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.71 AU - 0.77 AU

Year: 234 Days

Day: 15.5 Hours

Environment

Temp: 108 °C

Axial Tilt: 41.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,866,447 km

• M1: 116,836 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.9 AU - 1.38 AU

Year: 447 Days

Day: 38.1 Hours

Environment

Temp: -4 °C

Axial Tilt: 8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 54,866,447 km

• M1: 186,698 km (0.12 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.13 AU - 1.41 AU

Year: 525 Days

Day: 25.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 17.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 54,866,447 km

• M1: 27,376 km (0.087 R)
• M2: 46,375 km (0.12 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.25 AU - 2.41 AU

Year: 1306 Days

Day: 21.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.53 AU - 4.33 AU

Year: 2860 Days

Day: 27.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,866,447 km

• M1: 98,136 km (0.102 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.7 AU - 4.46 AU

Year: 3025 Days

Day: 33.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.34 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.1

Radius: 14.5

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 9.95 AU - 11.25 AU

Year: 12669 Days

Day: 13.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 54,866,447 km

• M1: 180,265 km (0.115 R)
• M2: 701,315 km (0.086 R)
• M3: 1,256,772 km (0.089 R)
• M4: 1,731,895 km (0.103 R)
• M5: 3,449,278 km (0.106 R)
• M6: 3,921,858 km (0.091 R)
• M7: 4,378,281 km (0.072 R)
• M8: 5,097,398 km (0.115 R)
• M9: 5,643,280 km (0.118 R)
• M10: 6,342,351 km (0.119 R)
• M11: 10,631,023 km (0.034 R)
• M12: 11,241,233 km (0.12 R)
• M13: 13,213,531 km (0.063 R)
• M14: 15,267,959 km (0.114 R)
• M15: 18,538,617 km (0.095 R)
• M16: 23,622,102 km (0.1 R)
• M17: 25,341,431 km (0.091 R)
• M18: 26,131,756 km (0.109 R)
• M19: 27,245,213 km (0.113 R)
• M20: 27,761,774 km (0.114 R)
• M21: 34,002,100 km (0.061 R)
• M22: 36,565,160 km (0.053 R)
• M23: 38,214,926 km (0.118 R)
• M24: 38,732,385 km (0.103 R)
• M25: 39,254,481 km (0.102 R)
• M26: 40,179,595 km (0.115 R)
• M27: 43,321,599 km (0.12 R)
• M28: 45,168,235 km (0.09 R)
• M29: 46,477,066 km (0.049 R)
• M30: 54,212,772 km (0.08 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 18,078 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit