🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.6 AU - 0.78 AU

Year: 210 Days

Day: 27.5 Hours

Environment

Temp: 202 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,260,405 km

• M1: 35,604 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.61 AU - 0.81 AU

Year: 220 Days

Day: 38.5 Hours

Environment

Temp: 178 °C

Axial Tilt: 21.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.83 AU - 1.07 AU

Year: 340 Days

Day: 35.8 Hours

Environment

Temp: 48 °C

Axial Tilt: 3.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.73 AU - 1.19 AU

Year: 345 Days

Day: 47.2 Hours

Environment

Temp: 23 °C

Axial Tilt: 33.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.21 AU - 1.53 AU

Year: 589 Days

Day: 13.6 Hours

Environment

Temp: -23 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.72 AU - 4.78 AU

Year: 3216 Days

Day: 20.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 15.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 843

Radius: 5.8

Gravity: 25.06 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 14.96 AU - 15.8 AU

Year: 22142 Days

Day: 23.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 87,260,405 km

• M1: 72,405 km (0.08 R)
• M2: 759,209 km (0.115 R)
• M3: 1,203,664 km (0.054 R)
• M4: 1,846,038 km (0.102 R)
• M5: 2,242,921 km (0.104 R)
• M6: 2,449,815 km (0.081 R)
• M7: 3,177,010 km (0.028 R)
• M8: 5,008,986 km (0.088 R)
• M9: 6,765,265 km (0.106 R)
• M10: 7,448,628 km (0.082 R)
• M11: 7,703,542 km (0.069 R)
• M12: 7,911,633 km (0.1 R)
• M13: 8,558,644 km (0.116 R)
• M14: 14,578,013 km (0.112 R)
• M15: 14,977,290 km (0.1 R)
• M16: 15,631,182 km (0.101 R)
• M17: 15,881,310 km (0.082 R)
• M18: 19,475,399 km (0.095 R)
• M19: 25,828,222 km (0.058 R)
• M20: 33,297,644 km (0.101 R)
• M21: 35,117,203 km (0.111 R)
• M22: 37,149,789 km (0.111 R)
• M23: 40,656,961 km (0.113 R)
• M24: 44,046,251 km (0.098 R)
• M25: 47,619,246 km (0.11 R)
• M26: 54,567,170 km (0.071 R)
• M27: 56,306,245 km (0.036 R)
• M28: 60,917,749 km (0.08 R)
• M29: 61,537,234 km (0.084 R)
• M30: 64,912,012 km (0.093 R)
• M31: 72,720,722 km (0.113 R)
• M32: 78,910,483 km (0.09 R)
• M33: 79,400,715 km (0.071 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 14,314 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit