🌌 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: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.48 AU - 0.76 AU

Year: 181 Days

Day: 43.2 Hours

Environment

Temp: 215 °C

Axial Tilt: 35.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.68 AU - 0.82 AU

Year: 241 Days

Day: 30.7 Hours

Environment

Temp: 186 °C

Axial Tilt: 26 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,520,553 km

• M1: 42,486 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.76 AU - 1.2 AU

Year: 360 Days

Day: 40.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 16.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.87 AU - 1.23 AU

Year: 399 Days

Day: 27.4 Hours

Environment

Temp: 6 °C

Axial Tilt: 13.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.01 AU - 2.05 AU

Year: 1073 Days

Day: 26.6 Hours

Environment

Temp: -64 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.16 AU - 3.22 AU

Year: 1636 Days

Day: 28.5 Hours

Environment

Temp: -104 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.57 AU - 3.75 AU

Year: 2083 Days

Day: 27.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,520,553 km

• M1: 13,314 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 13.6

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.46 AU - 7.16 AU

Year: 5878 Days

Day: 9.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,520,553 km

• M1: 169,494 km (0.074 R)
• M2: 726,896 km (0.061 R)
• M3: 1,205,908 km (0.087 R)
• M4: 1,702,125 km (0.102 R)
• M5: 2,178,743 km (0.112 R)
• M6: 2,603,452 km (0.098 R)
• M7: 3,430,279 km (0.116 R)
• M8: 5,144,222 km (0.12 R)
• M9: 5,725,559 km (0.102 R)
• M10: 6,814,781 km (0.097 R)
• M11: 7,517,443 km (0.113 R)
• M12: 8,075,742 km (0.104 R)
• M13: 9,150,752 km (0.105 R)
• M14: 11,682,098 km (0.041 R)
• M15: 13,429,401 km (0.113 R)
• M16: 14,478,680 km (0.047 R)
• M17: 18,685,672 km (0.116 R)
• M18: 21,954,684 km (0.058 R)
• M19: 22,483,662 km (0.084 R)
• M20: 24,522,831 km (0.118 R)
• M21: 28,966,636 km (0.105 R)
• M22: 32,535,143 km (0.059 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.2

Radius: 14.6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.5 AU - 8.28 AU

Year: 7450 Days

Day: 13.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,520,553 km

• M1: 182,061 km (0.069 R)
• M2: 799,601 km (0.104 R)
• M3: 1,264,700 km (0.116 R)
• M4: 2,066,994 km (0.069 R)
• M5: 3,153,673 km (0.089 R)
• M6: 3,858,727 km (0.051 R)
• M7: 5,047,283 km (0.102 R)
• M8: 5,928,264 km (0.079 R)
• M9: 9,797,015 km (0.104 R)
• M10: 10,770,598 km (0.098 R)
• M11: 14,133,259 km (0.115 R)
• M12: 17,165,608 km (0.111 R)
• M13: 18,391,413 km (0.067 R)
• M14: 19,025,857 km (0.056 R)
• M15: 20,004,826 km (0.099 R)
• M16: 21,017,304 km (0.116 R)
• M17: 22,491,591 km (0.118 R)
• M18: 25,645,713 km (0.034 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.5

Radius: 8.6

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 10.24 AU - 11.02 AU

Year: 12853 Days

Day: 12.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,520,553 km

• M1: 107,112 km (0.101 R)
• M2: 651,798 km (0.1 R)
• M3: 1,032,674 km (0.061 R)
• M4: 2,238,134 km (0.079 R)
• M5: 2,712,808 km (0.039 R)
• M6: 3,716,460 km (0.067 R)
• M7: 4,383,666 km (0.098 R)
• M8: 5,038,307 km (0.032 R)
• M9: 5,627,124 km (0.059 R)
• M10: 7,710,125 km (0.069 R)
• M11: 8,073,947 km (0.113 R)
• M12: 11,778,588 km (0.034 R)
• M13: 13,850,369 km (0.105 R)
• M14: 18,058,408 km (0.075 R)
• M15: 27,647,631 km (0.101 R)
• M16: 30,161,623 km (0.092 R)
• M17: 38,729,094 km (0.095 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: 329 - 13,842 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit