🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.72 AU - 1.16 AU

Year: 331 Days

Day: 33.4 Hours

Environment

Temp: 74 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 32,480,238 km

• M1: 14,511 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.07 AU - 1.11 AU

Year: 414 Days

Day: 44.1 Hours

Environment

Temp: 29 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 32,480,238 km

• M1: 42,336 km (0.103 R)
• M2: 1,025,942 km (0.049 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.94 AU - 2.04 AU

Year: 1020 Days

Day: 38.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,480,238 km

• M1: 38,147 km (0.057 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.33 AU - 2.67 AU

Year: 1437 Days

Day: 14.2 Hours

Environment

Temp: -79 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.5

Radius: 13.9

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 5.19 AU - 5.93 AU

Year: 4765 Days

Day: 15 Hours

Environment

Temp: -144 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,480,238 km

• M1: 175,777 km (0.113 R)
• M2: 686,355 km (0.076 R)
• M3: 1,807,142 km (0.064 R)
• M4: 3,116,722 km (0.113 R)
• M5: 3,870,546 km (0.114 R)
• M6: 4,461,457 km (0.035 R)
• M7: 5,188,204 km (0.059 R)
• M8: 6,725,621 km (0.104 R)
• M9: 7,354,231 km (0.083 R)
• M10: 8,802,638 km (0.109 R)
• M11: 9,287,485 km (0.096 R)
• M12: 9,829,627 km (0.09 R)
• M13: 12,212,871 km (0.109 R)
• M14: 13,885,076 km (0.093 R)
• M15: 14,389,670 km (0.082 R)
• M16: 17,388,060 km (0.087 R)
• M17: 20,133,629 km (0.091 R)
• M18: 22,117,297 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.2

Radius: 7.9

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 16.66 AU - 20 AU

Year: 28522 Days

Day: 22 Hours

Environment

Temp: -188 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,480,238 km

• M1: 122,670 km (0.12 R)
• M2: 438,322 km (0.039 R)
• M3: 1,359,845 km (0.114 R)
• M4: 2,379,354 km (0.075 R)
• M5: 3,769,717 km (0.116 R)
• M6: 5,969,853 km (0.113 R)
• M7: 6,884,943 km (0.029 R)
• M8: 7,198,201 km (0.07 R)
• M9: 8,787,529 km (0.114 R)
• M10: 10,968,965 km (0.047 R)
• M11: 12,643,713 km (0.098 R)
• M12: 20,838,983 km (0.113 R)
• M13: 30,111,807 km (0.105 R)
• M14: 30,762,857 km (0.086 R)

Kuiper Belt

Range: 30.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 17,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit