🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.52 AU - 0.56 AU

Year: 256 Days

Day: 47.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.5

Radius: 11.8

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.63 AU - 0.89 AU

Year: 428 Days

Day: 6.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,487,455 km

• M1: 146,756 km (0.091 R)
• M2: 565,779 km (0.11 R)
• M3: 941,868 km (0.047 R)
• M4: 1,361,341 km (0.058 R)
• M5: 1,994,289 km (0.066 R)
• M6: 2,464,775 km (0.055 R)
• M7: 3,029,058 km (0.119 R)
• M8: 3,477,253 km (0.061 R)
• M9: 4,066,519 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.8

Radius: 10.1

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.64 AU - 1 AU

Year: 479 Days

Day: 7.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,487,455 km

• M1: 125,662 km (0.061 R)
• M2: 461,360 km (0.087 R)
• M3: 876,344 km (0.092 R)
• M4: 1,497,774 km (0.119 R)
• M5: 2,019,571 km (0.119 R)
• M6: 2,343,301 km (0.037 R)
• M7: 3,015,295 km (0.082 R)
• M8: 3,378,219 km (0.071 R)
• M9: 4,163,309 km (0.113 R)
• M10: 5,545,593 km (0.051 R)
• M11: 6,245,412 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.8

Radius: 10.1

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.53 AU - 3.33 AU

Year: 3238 Days

Day: 6.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,487,455 km

• M1: 125,662 km (0.089 R)
• M2: 639,381 km (0.074 R)
• M3: 991,385 km (0.087 R)
• M4: 1,545,496 km (0.109 R)
• M5: 3,006,917 km (0.117 R)
• M6: 3,761,938 km (0.071 R)
• M7: 7,110,088 km (0.093 R)
• M8: 7,467,327 km (0.098 R)
• M9: 8,778,852 km (0.037 R)
• M10: 11,811,350 km (0.114 R)
• M11: 18,089,823 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 9

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.75 AU - 5.29 AU

Year: 6205 Days

Day: 10.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,487,455 km

• M1: 111,899 km (0.118 R)
• M2: 408,701 km (0.115 R)
• M3: 1,118,094 km (0.081 R)
• M4: 1,965,267 km (0.108 R)
• M5: 2,971,163 km (0.096 R)
• M6: 3,497,897 km (0.088 R)
• M7: 4,152,238 km (0.102 R)
• M8: 6,101,349 km (0.063 R)
• M9: 7,016,589 km (0.026 R)
• M10: 7,374,128 km (0.103 R)
• M11: 7,812,450 km (0.05 R)
• M12: 9,079,394 km (0.103 R)
• M13: 9,387,266 km (0.087 R)
• M14: 9,862,240 km (0.117 R)
• M15: 10,146,625 km (0.091 R)
• M16: 10,562,358 km (0.095 R)
• M17: 14,621,397 km (0.106 R)
• M18: 14,991,502 km (0.08 R)
• M19: 19,297,228 km (0.088 R)
• M20: 20,326,012 km (0.036 R)
• M21: 22,352,764 km (0.09 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: 332 - 19,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit