🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.47 AU - 0.75 AU

Year: 167 Days

Day: 45.3 Hours

Environment

Temp: 178 °C

Axial Tilt: 19.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,192,238 km

• M1: 86,767 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.59 AU - 0.99 AU

Year: 247 Days

Day: 18.4 Hours

Environment

Temp: 211 °C

Axial Tilt: 33.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.02 AU - 1.04 AU

Year: 367 Days

Day: 29.3 Hours

Environment

Temp: 151 °C

Axial Tilt: 7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 50,192,238 km

• M1: 32,912 km (0.063 R)
• M2: 260,450 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.99 AU - 1.23 AU

Year: 411 Days

Day: 17.1 Hours

Environment

Temp: 29 °C

Axial Tilt: 39 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 50,192,238 km

• M1: 221,255 km (0.084 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.28 AU - 1.88 AU

Year: 698 Days

Day: 39.3 Hours

Environment

Temp: -34 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 4.29 AU - 6.03 AU

Year: 4120 Days

Day: 16.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,192,238 km

• M1: 697,874 km (0.03 R)

Planet 7 - Terrestrial

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.08 AU - 5.24 AU

Year: 4120 Days

Day: 26.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.2

Radius: 14.2

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.37 AU - 11.11 AU

Year: 11517 Days

Day: 10.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,192,238 km

• M1: 176,525 km (0.114 R)
• M2: 655,388 km (0.08 R)
• M3: 1,101,040 km (0.088 R)
• M4: 1,546,842 km (0.116 R)
• M5: 2,826,353 km (0.076 R)
• M6: 4,604,323 km (0.062 R)
• M7: 5,460,173 km (0.118 R)
• M8: 6,015,929 km (0.114 R)
• M9: 6,495,091 km (0.109 R)
• M10: 7,614,831 km (0.094 R)
• M11: 8,720,060 km (0.061 R)
• M12: 16,539,840 km (0.054 R)
• M13: 17,263,744 km (0.111 R)
• M14: 18,931,012 km (0.102 R)
• M15: 21,887,066 km (0.065 R)
• M16: 23,115,713 km (0.09 R)
• M17: 23,838,122 km (0.065 R)
• M18: 27,077,813 km (0.044 R)
• M19: 27,880,854 km (0.069 R)
• M20: 29,429,192 km (0.036 R)
• M21: 32,024,715 km (0.116 R)
• M22: 38,040,794 km (0.039 R)
• M23: 47,035,067 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.3

Radius: 5.2

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 14.85 AU - 15.33 AU

Year: 20602 Days

Day: 19.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,192,238 km

• M1: 64,626 km (0.072 R)
• M2: 598,391 km (0.103 R)
• M3: 1,445,415 km (0.059 R)
• M4: 3,321,222 km (0.08 R)
• M5: 3,805,171 km (0.105 R)
• M6: 8,179,264 km (0.092 R)
• M7: 11,781,730 km (0.107 R)
• M8: 12,598,983 km (0.108 R)
• M9: 12,960,412 km (0.096 R)
• M10: 14,022,407 km (0.104 R)
• M11: 18,464,566 km (0.062 R)
• M12: 20,295,345 km (0.109 R)
• M13: 20,959,410 km (0.052 R)
• M14: 21,637,986 km (0.041 R)
• M15: 23,579,317 km (0.109 R)
• M16: 24,128,341 km (0.079 R)
• M17: 29,248,029 km (0.108 R)
• M18: 38,465,502 km (0.084 R)
• M19: 50,192,180 km (0.082 R)

Kuiper Belt

Range: 31.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 16,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit