🌌 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: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.53 AU - 0.59 AU

Year: 153 Days

Day: 46.2 Hours

Environment

Temp: 238 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.66 AU - 0.92 AU

Year: 256 Days

Day: 32.9 Hours

Environment

Temp: 130 °C

Axial Tilt: 13.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,138,589 km

• M1: 47,273 km (0.052 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.76 AU - 1.14 AU

Year: 338 Days

Day: 13.6 Hours

Environment

Temp: 36 °C

Axial Tilt: 29.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.31 AU - 2.05 AU

Year: 795 Days

Day: 12.7 Hours

Environment

Temp: -41 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.53 AU - 2.21 AU

Year: 934 Days

Day: 15.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,138,589 km

• M1: 468,840 km (0.113 R)
• M2: 1,793,080 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97

Radius: 13.8

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.64 AU - 8.14 AU

Year: 6606 Days

Day: 5.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,138,589 km

• M1: 171,589 km (0.112 R)
• M2: 1,210,247 km (0.119 R)
• M3: 1,928,765 km (0.073 R)
• M4: 2,561,415 km (0.106 R)
• M5: 3,330,049 km (0.11 R)
• M6: 4,539,547 km (0.116 R)
• M7: 5,163,819 km (0.032 R)
• M8: 6,024,157 km (0.091 R)
• M9: 6,920,996 km (0.082 R)
• M10: 7,357,223 km (0.077 R)
• M11: 8,980,510 km (0.103 R)
• M12: 10,449,710 km (0.107 R)
• M13: 14,275,826 km (0.119 R)
• M14: 15,918,410 km (0.096 R)
• M15: 18,281,907 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.5

Radius: 14.8

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.34 AU - 8.6 AU

Year: 7457 Days

Day: 14.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,138,589 km

• M1: 184,305 km (0.09 R)
• M2: 798,703 km (0.088 R)
• M3: 2,250,251 km (0.068 R)
• M4: 3,461,396 km (0.096 R)
• M5: 4,149,845 km (0.064 R)
• M6: 9,856,405 km (0.12 R)
• M7: 12,383,413 km (0.111 R)
• M8: 13,540,103 km (0.062 R)
• M9: 14,949,016 km (0.101 R)
• M10: 21,573,659 km (0.041 R)
• M11: 23,246,911 km (0.112 R)
• M12: 24,157,214 km (0.119 R)
• M13: 25,263,490 km (0.085 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 13,675 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit