🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.77 AU - 0.77 AU

Year: 239 Days

Day: 44.6 Hours

Environment

Temp: 209 °C

Axial Tilt: 36.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.77 AU - 0.89 AU

Year: 267 Days

Day: 36.4 Hours

Environment

Temp: 164 °C

Axial Tilt: 0.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.71 AU - 1.11 AU

Year: 307 Days

Day: 33.4 Hours

Environment

Temp: 105 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.06 AU - 1.62 AU

Year: 548 Days

Day: 33.7 Hours

Environment

Temp: -4 °C

Axial Tilt: 48.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.75 AU - 1.75 AU

Year: 817 Days

Day: 42.8 Hours

Environment

Temp: -38 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,368,284 km

• M1: 99,483 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.7

Radius: 13.3

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.46 AU - 6.7 AU

Year: 5294 Days

Day: 11.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,368,284 km

• M1: 165,455 km (0.113 R)
• M2: 663,317 km (0.066 R)
• M3: 1,314,516 km (0.096 R)
• M4: 1,939,237 km (0.105 R)
• M5: 2,919,253 km (0.108 R)
• M6: 3,978,107 km (0.104 R)
• M7: 6,446,920 km (0.105 R)
• M8: 7,633,830 km (0.064 R)
• M9: 9,258,163 km (0.089 R)
• M10: 11,952,421 km (0.119 R)
• M11: 15,178,649 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.3

Radius: 10.1

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 8.65 AU - 12.77 AU

Year: 12376 Days

Day: 11.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,368,284 km

• M1: 131,347 km (0.079 R)
• M2: 644,617 km (0.11 R)
• M3: 988,842 km (0.04 R)
• M4: 1,647,222 km (0.07 R)
• M5: 2,494,096 km (0.111 R)
• M6: 3,229,220 km (0.07 R)
• M7: 4,102,572 km (0.052 R)
• M8: 7,938,112 km (0.049 R)
• M9: 8,970,188 km (0.12 R)
• M10: 9,620,639 km (0.086 R)
• M11: 12,726,440 km (0.104 R)
• M12: 22,968,060 km (0.076 R)
• M13: 26,341,193 km (0.08 R)
• M14: 38,287,630 km (0.092 R)
• M15: 44,560,419 km (0.096 R)
• M16: 46,155,880 km (0.033 R)
• M17: 49,000,783 km (0.037 R)
• M18: 51,327,777 km (0.059 R)
• M19: 54,708,091 km (0.108 R)

Kuiper Belt

Range: 31.1 - 59.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 15,837 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit