🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.63 AU - 0.71 AU

Year: 204 Days

Day: 41.7 Hours

Environment

Temp: 200 °C

Axial Tilt: 4.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.67 AU - 0.69 AU

Year: 209 Days

Day: 21.6 Hours

Environment

Temp: 160 °C

Axial Tilt: 33.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 94,236,110 km

• M1: 78,090 km (0.114 R)
• M2: 366,365 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.6 AU - 0.9 AU

Year: 242 Days

Day: 32.5 Hours

Environment

Temp: 114 °C

Axial Tilt: 170.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.8 AU - 1.2 AU

Year: 373 Days

Day: 37.2 Hours

Environment

Temp: 14 °C

Axial Tilt: 35.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 94,236,110 km

• M1: 209,138 km (0.112 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.84 AU - 1.2 AU

Year: 384 Days

Day: 13.5 Hours

Environment

Temp: 26 °C

Axial Tilt: 15.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.08 AU - 1.36 AU

Year: 502 Days

Day: 21.3 Hours

Environment

Temp: -9 °C

Axial Tilt: 19.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 94,236,110 km

• M1: 276,606 km (0.069 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.7 AU - 4.6 AU

Year: 3152 Days

Day: 34.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 19.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.7

Radius: 3.9

Gravity: 34.96 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 14.99 AU - 23.35 AU

Year: 31289 Days

Day: 23.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 94,236,110 km

• M1: 52,958 km (0.108 R)
• M2: 207,193 km (0.085 R)
• M3: 406,009 km (0.117 R)
• M4: 1,742,366 km (0.057 R)
• M5: 2,393,566 km (0.071 R)
• M6: 2,617,065 km (0.091 R)
• M7: 3,048,805 km (0.116 R)
• M8: 3,341,867 km (0.064 R)
• M9: 3,783,181 km (0.115 R)
• M10: 5,135,545 km (0.118 R)
• M11: 7,801,379 km (0.034 R)
• M12: 8,348,459 km (0.073 R)
• M13: 9,703,067 km (0.043 R)
• M14: 10,399,894 km (0.112 R)
• M15: 10,994,396 km (0.077 R)
• M16: 11,681,200 km (0.065 R)
• M17: 13,064,083 km (0.059 R)
• M18: 13,445,408 km (0.071 R)
• M19: 13,991,590 km (0.114 R)
• M20: 15,045,058 km (0.082 R)
• M21: 15,211,710 km (0.072 R)
• M22: 17,217,369 km (0.088 R)
• M23: 21,113,495 km (0.094 R)
• M24: 21,850,564 km (0.113 R)
• M25: 22,496,079 km (0.114 R)
• M26: 23,937,903 km (0.053 R)
• M27: 29,273,910 km (0.098 R)
• M28: 33,759,303 km (0.091 R)
• M29: 53,903,703 km (0.102 R)
• M30: 54,294,004 km (0.05 R)
• M31: 56,474,094 km (0.073 R)
• M32: 61,644,495 km (0.072 R)
• M33: 65,113,969 km (0.031 R)
• M34: 71,259,749 km (0.053 R)
• M35: 85,745,460 km (0.103 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 16,933 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit