🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.55 AU - 0.57 AU

Year: 154 Days

Day: 18.7 Hours

Environment

Temp: 157 °C

Axial Tilt: 23.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,839,808 km

• M1: 40,691 km (0.05 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.66 AU - 1 AU

Year: 278 Days

Day: 18.9 Hours

Environment

Temp: 82 °C

Axial Tilt: 20.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,839,808 km

• M1: 102,325 km (0.097 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.28 AU - 1.28 AU

Year: 532 Days

Day: 17.3 Hours

Environment

Temp: -1 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.44 AU - 1.76 AU

Year: 743 Days

Day: 38.2 Hours

Environment

Temp: -50 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.5 AU - 1.86 AU

Year: 799 Days

Day: 23.6 Hours

Environment

Temp: -46 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,839,808 km

• M1: 35,903 km (0.073 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.49 AU - 2.69 AU

Year: 1530 Days

Day: 38.9 Hours

Environment

Temp: -85 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.43 AU - 2.99 AU

Year: 1638 Days

Day: 23.7 Hours

Environment

Temp: -91 °C

Axial Tilt: 49.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.38 AU - 4.6 AU

Year: 2926 Days

Day: 34.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,839,808 km

• M1: 1,894,208 km (0.108 R)

Asteroid Belt

Center: 5.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.5

Radius: 11.2

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.09 AU - 8.41 AU

Year: 7166 Days

Day: 12.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,839,808 km

• M1: 144,362 km (0.038 R)
• M2: 614,548 km (0.101 R)
• M3: 1,234,781 km (0.116 R)
• M4: 1,731,595 km (0.065 R)
• M5: 2,102,598 km (0.117 R)
• M6: 3,453,616 km (0.082 R)
• M7: 4,114,839 km (0.028 R)
• M8: 6,889,730 km (0.103 R)
• M9: 8,573,155 km (0.049 R)
• M10: 11,325,456 km (0.104 R)
• M11: 12,084,815 km (0.042 R)
• M12: 12,547,073 km (0.073 R)
• M13: 16,288,665 km (0.095 R)
• M14: 20,781,089 km (0.091 R)
• M15: 22,192,545 km (0.118 R)

Planet 10 - Gas Giant

Semi-Major Axis: 12.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.4

Radius: 12.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 11.53 AU - 12.95 AU

Year: 15720 Days

Day: 10.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,839,808 km

• M1: 150,944 km (0.118 R)
• M2: 821,741 km (0.059 R)
• M3: 1,252,583 km (0.033 R)
• M4: 2,664,637 km (0.08 R)
• M5: 3,089,346 km (0.109 R)
• M6: 3,698,359 km (0.077 R)
• M7: 4,579,191 km (0.072 R)
• M8: 7,058,028 km (0.067 R)
• M9: 10,725,719 km (0.097 R)
• M10: 11,998,348 km (0.062 R)
• M11: 14,841,754 km (0.106 R)
• M12: 16,111,092 km (0.099 R)
• M13: 18,525,452 km (0.12 R)
• M14: 18,950,161 km (0.12 R)
• M15: 20,896,579 km (0.112 R)
• M16: 23,168,222 km (0.09 R)
• M17: 24,465,086 km (0.084 R)
• M18: 26,446,959 km (0.118 R)
• M19: 35,973,351 km (0.04 R)
• M20: 37,170,284 km (0.025 R)
• M21: 38,256,514 km (0.101 R)
• M22: 39,223,963 km (0.113 R)
• M23: 46,459,414 km (0.069 R)
• M24: 57,006,064 km (0.119 R)
• M25: 61,222,779 km (0.096 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 16,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit