🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.45 AU - 0.65 AU

Year: 142 Days

Day: 12.7 Hours

Environment

Temp: 204 °C

Axial Tilt: 48.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,571,183 km

• M1: 122,221 km (0.061 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.84 AU - 0.92 AU

Year: 287 Days

Day: 36.2 Hours

Environment

Temp: 196 °C

Axial Tilt: 47.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.79 AU - 1.23 AU

Year: 353 Days

Day: 15.4 Hours

Environment

Temp: 85 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.03 AU - 1.29 AU

Year: 435 Days

Day: 39 Hours

Environment

Temp: 26 °C

Axial Tilt: 10.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 47,571,183 km

• M1: 35,006 km (0.109 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.31 AU - 1.53 AU

Year: 589 Days

Day: 12.3 Hours

Environment

Temp: -7 °C

Axial Tilt: 47.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.81 AU - 1.91 AU

Year: 883 Days

Day: 41.3 Hours

Environment

Temp: -32 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.34 AU - 5.46 AU

Year: 3214 Days

Day: 12.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 14.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.8

Radius: 7.1

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 11.12 AU - 17.04 AU

Year: 18399 Days

Day: 22.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,571,183 km

• M1: 102,624 km (0.087 R)
• M2: 1,175,989 km (0.071 R)
• M3: 1,629,719 km (0.113 R)
• M4: 2,512,945 km (0.03 R)
• M5: 3,242,534 km (0.068 R)
• M6: 3,531,407 km (0.079 R)
• M7: 4,801,044 km (0.107 R)
• M8: 5,145,120 km (0.09 R)
• M9: 6,726,369 km (0.113 R)
• M10: 7,157,361 km (0.07 R)
• M11: 7,732,564 km (0.085 R)
• M12: 9,352,709 km (0.062 R)
• M13: 14,305,596 km (0.085 R)
• M14: 17,011,223 km (0.115 R)
• M15: 19,019,125 km (0.063 R)
• M16: 21,681,519 km (0.09 R)
• M17: 22,105,329 km (0.079 R)
• M18: 24,674,074 km (0.086 R)
• M19: 27,533,787 km (0.093 R)
• M20: 28,433,170 km (0.11 R)
• M21: 29,043,379 km (0.078 R)
• M22: 37,425,498 km (0.109 R)
• M23: 45,328,304 km (0.116 R)

Kuiper Belt

Range: 31.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 13,742 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit