🌌 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: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.51 AU - 0.83 AU

Year: 208 Days

Day: 17.2 Hours

Environment

Temp: 102 °C

Axial Tilt: 28.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.63 AU - 0.91 AU

Year: 256 Days

Day: 45.9 Hours

Environment

Temp: 78 °C

Axial Tilt: 27.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.1 AU - 1.18 AU

Year: 461 Days

Day: 44.1 Hours

Environment

Temp: -2 °C

Axial Tilt: 39.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.24 AU - 1.66 AU

Year: 661 Days

Day: 30 Hours

Environment

Temp: -37 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,914,071 km

• M1: 844,031 km (0.075 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.29 AU - 2.85 AU

Year: 1560 Days

Day: 33.1 Hours

Environment

Temp: -106 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,914,071 km

• M1: 274,213 km (0.1 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.8 AU - 3.24 AU

Year: 1988 Days

Day: 32.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.57 AU - 3.99 AU

Year: 2250 Days

Day: 47.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,914,071 km

• M1: 540,048 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.8

Radius: 14.1

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.12 AU - 7.92 AU

Year: 7045 Days

Day: 11.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,914,071 km

• M1: 175,478 km (0.112 R)
• M2: 684,410 km (0.107 R)
• M3: 1,209,798 km (0.064 R)
• M4: 2,385,338 km (0.051 R)
• M5: 3,028,908 km (0.107 R)
• M6: 4,081,927 km (0.049 R)
• M7: 6,973,056 km (0.055 R)
• M8: 7,961,150 km (0.084 R)
• M9: 9,998,822 km (0.07 R)
• M10: 11,115,720 km (0.095 R)
• M11: 13,650,656 km (0.081 R)
• M12: 14,742,721 km (0.056 R)
• M13: 15,716,004 km (0.115 R)
• M14: 16,188,734 km (0.076 R)
• M15: 16,670,888 km (0.048 R)
• M16: 18,565,245 km (0.119 R)
• M17: 20,111,938 km (0.113 R)
• M18: 28,627,198 km (0.032 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.7

Radius: 11.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 7.5 AU - 8.98 AU

Year: 8959 Days

Day: 5.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,914,071 km

• M1: 145,559 km (0.113 R)
• M2: 514,916 km (0.11 R)
• M3: 1,551,480 km (0.109 R)
• M4: 2,109,180 km (0.073 R)
• M5: 2,856,721 km (0.103 R)
• M6: 4,094,045 km (0.116 R)
• M7: 4,734,623 km (0.084 R)
• M8: 6,455,896 km (0.095 R)
• M9: 7,477,350 km (0.05 R)
• M10: 8,603,523 km (0.047 R)
• M11: 10,072,125 km (0.093 R)
• M12: 12,068,659 km (0.085 R)
• M13: 12,443,401 km (0.096 R)
• M14: 12,992,425 km (0.106 R)
• M15: 18,472,495 km (0.114 R)
• M16: 19,115,167 km (0.111 R)
• M17: 19,920,602 km (0.075 R)
• M18: 21,132,644 km (0.091 R)
• M19: 21,678,078 km (0.069 R)
• M20: 23,123,792 km (0.094 R)
• M21: 24,292,001 km (0.071 R)
• M22: 28,691,376 km (0.119 R)
• M23: 31,228,855 km (0.107 R)
• M24: 31,632,021 km (0.071 R)
• M25: 35,857,862 km (0.076 R)
• M26: 37,308,512 km (0.116 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 14,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit