🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.86 AU - 1.02 AU

Year: 323 Days

Day: 17.3 Hours

Environment

Temp: 136 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.98 AU - 1.04 AU

Year: 360 Days

Day: 22.8 Hours

Environment

Temp: 80 °C

Axial Tilt: 14.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 38,984,410 km

• M1: 159,172 km (0.036 R)
• M2: 345,421 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.97 AU - 1.61 AU

Year: 520 Days

Day: 25.6 Hours

Environment

Temp: 24 °C

Axial Tilt: 23.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 38,984,410 km

• M1: 659,727 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.37 AU - 1.97 AU

Year: 766 Days

Day: 16 Hours

Environment

Temp: -30 °C

Axial Tilt: 81.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.64 AU - 1.92 AU

Year: 842 Days

Day: 18.8 Hours

Environment

Temp: -43 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,984,410 km

• M1: 141,220 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.38 AU - 4.86 AU

Year: 3523 Days

Day: 26.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,984,410 km

• M1: 555,307 km (0.09 R)
• M2: 2,826,652 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138

Radius: 10.2

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 10.5 AU - 15.2 AU

Year: 16342 Days

Day: 8.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,984,410 km

• M1: 127,457 km (0.079 R)
• M2: 557,701 km (0.1 R)
• M3: 1,124,378 km (0.05 R)
• M4: 1,587,682 km (0.117 R)
• M5: 2,944,535 km (0.074 R)
• M6: 3,597,380 km (0.079 R)
• M7: 4,897,086 km (0.113 R)
• M8: 6,417,001 km (0.082 R)
• M9: 8,436,422 km (0.072 R)
• M10: 10,553,681 km (0.108 R)
• M11: 10,996,341 km (0.1 R)
• M12: 11,349,093 km (0.052 R)
• M13: 13,512,128 km (0.112 R)
• M14: 17,523,296 km (0.115 R)
• M15: 22,105,030 km (0.091 R)
• M16: 23,654,864 km (0.059 R)
• M17: 31,382,193 km (0.072 R)
• M18: 32,298,479 km (0.118 R)
• M19: 38,984,457 km (0.042 R)

Kuiper Belt

Range: 30.9 - 54.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 14,787 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit