🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.4 AU - 0.64 AU

Year: 139 Days

Day: 19.2 Hours

Environment

Temp: 161 °C

Axial Tilt: 26.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 37,793,764 km

• M1: 23,038 km (0.097 R)
• M2: 45,777 km (0.053 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.49 AU - 0.63 AU

Year: 155 Days

Day: 25.7 Hours

Environment

Temp: 229 °C

Axial Tilt: 49.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 37,793,764 km

• M1: 29,321 km (0.078 R)
• M2: 252,072 km (0.108 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.13 AU - 1.61 AU

Year: 595 Days

Day: 35.1 Hours

Environment

Temp: -25 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 37,793,764 km

• M1: 207,492 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.35 AU - 1.53 AU

Year: 641 Days

Day: 17.2 Hours

Environment

Temp: -48 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.3 AU - 1.98 AU

Year: 779 Days

Day: 24.7 Hours

Environment

Temp: -62 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.33 AU - 2.81 AU

Year: 1528 Days

Day: 16.8 Hours

Environment

Temp: -100 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 37,793,764 km

• M1: 1,758,673 km (0.095 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.77 AU - 3.21 AU

Year: 1917 Days

Day: 31.8 Hours

Environment

Temp: -105 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 37,793,764 km

• M1: 56,099 km (0.091 R)
• M2: 313,557 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.5

Radius: 14.1

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.02 AU - 7.68 AU

Year: 5934 Days

Day: 11.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,793,764 km

• M1: 175,329 km (0.103 R)
• M2: 615,446 km (0.089 R)
• M3: 1,443,021 km (0.028 R)
• M4: 1,989,652 km (0.089 R)
• M5: 3,467,978 km (0.115 R)
• M6: 3,957,612 km (0.063 R)
• M7: 4,655,486 km (0.072 R)
• M8: 5,165,465 km (0.106 R)
• M9: 5,650,012 km (0.096 R)
• M10: 6,332,328 km (0.065 R)
• M11: 7,178,753 km (0.095 R)
• M12: 8,714,076 km (0.046 R)
• M13: 9,990,595 km (0.072 R)
• M14: 10,458,686 km (0.081 R)
• M15: 13,639,436 km (0.082 R)
• M16: 15,295,933 km (0.106 R)
• M17: 15,793,047 km (0.045 R)
• M18: 16,885,261 km (0.039 R)
• M19: 19,363,799 km (0.049 R)
• M20: 21,919,080 km (0.102 R)
• M21: 23,441,238 km (0.111 R)
• M22: 25,032,660 km (0.093 R)
• M23: 25,898,683 km (0.109 R)
• M24: 28,899,017 km (0.092 R)
• M25: 36,345,700 km (0.042 R)
• M26: 37,232,367 km (0.048 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 15,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit