🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.73 AU - 0.77 AU

Year: 270 Days

Day: 29.4 Hours

Environment

Temp: 15 °C

Axial Tilt: 27 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 27,111,020 km

• M1: 38,596 km (0.039 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.62 AU - 0.98 AU

Year: 298 Days

Day: 18.5 Hours

Environment

Temp: 14 °C

Axial Tilt: 47.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.43 AU - 2.55 AU

Year: 1635 Days

Day: 24.6 Hours

Environment

Temp: -119 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.8

Radius: 11.8

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.85 AU - 4.65 AU

Year: 3647 Days

Day: 12.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,111,020 km

• M1: 175,329 km (0.091 R)
• M2: 568,472 km (0.099 R)
• M3: 949,797 km (0.106 R)
• M4: 1,630,617 km (0.034 R)
• M5: 2,203,128 km (0.075 R)
• M6: 2,738,389 km (0.113 R)
• M7: 3,142,303 km (0.066 R)
• M8: 5,091,414 km (0.063 R)
• M9: 6,152,512 km (0.067 R)
• M10: 9,269,533 km (0.102 R)
• M11: 10,222,770 km (0.065 R)
• M12: 11,606,252 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.8

Radius: 12.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.06 AU - 5.76 AU

Year: 5238 Days

Day: 14.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,111,020 km

• M1: 156,779 km (0.082 R)
• M2: 553,063 km (0.046 R)
• M3: 1,007,242 km (0.046 R)
• M4: 2,329,837 km (0.106 R)
• M5: 3,327,805 km (0.11 R)
• M6: 4,057,094 km (0.069 R)
• M7: 4,764,692 km (0.085 R)
• M8: 8,446,445 km (0.058 R)
• M9: 13,496,720 km (0.117 R)
• M10: 16,247,077 km (0.115 R)
• M11: 19,416,008 km (0.099 R)
• M12: 22,118,494 km (0.096 R)
• M13: 23,120,949 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 16,383 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit