🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.65 AU - 0.89 AU

Year: 239 Days

Day: 35.8 Hours

Environment

Temp: 158 °C

Axial Tilt: 22.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.01 AU - 1.07 AU

Year: 374 Days

Day: 44.4 Hours

Environment

Temp: 146 °C

Axial Tilt: 5.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.42 AU - 1.72 AU

Year: 695 Days

Day: 46.4 Hours

Environment

Temp: -20 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.55 AU - 2.11 AU

Year: 874 Days

Day: 22.4 Hours

Environment

Temp: -41 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.7 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556

Radius: 9.4

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.57 AU - 6.55 AU

Year: 4629 Days

Day: 9.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,943,046 km

• M1: 117,734 km (0.115 R)
• M2: 1,127,370 km (0.108 R)
• M3: 1,499,419 km (0.079 R)
• M4: 2,309,642 km (0.096 R)
• M5: 4,500,951 km (0.107 R)
• M6: 7,232,159 km (0.055 R)
• M7: 7,637,420 km (0.08 R)
• M8: 8,604,720 km (0.099 R)
• M9: 10,353,070 km (0.109 R)
• M10: 10,651,518 km (0.118 R)
• M11: 11,088,045 km (0.1 R)
• M12: 11,857,426 km (0.081 R)
• M13: 13,502,405 km (0.113 R)
• M14: 17,179,969 km (0.112 R)
• M15: 17,963,563 km (0.12 R)
• M16: 23,101,950 km (0.045 R)
• M17: 26,280,157 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 10

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.76 AU - 6.82 AU

Year: 5570 Days

Day: 6.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,943,046 km

• M1: 124,465 km (0.063 R)
• M2: 459,864 km (0.034 R)
• M3: 1,077,703 km (0.056 R)
• M4: 1,426,565 km (0.028 R)
• M5: 1,851,423 km (0.113 R)
• M6: 2,331,034 km (0.115 R)
• M7: 2,776,237 km (0.093 R)
• M8: 3,426,240 km (0.073 R)
• M9: 4,763,346 km (0.096 R)
• M10: 5,458,078 km (0.115 R)
• M11: 6,078,161 km (0.065 R)
• M12: 7,110,985 km (0.041 R)
• M13: 8,641,371 km (0.086 R)
• M14: 11,204,881 km (0.093 R)
• M15: 11,589,796 km (0.11 R)
• M16: 12,659,869 km (0.111 R)
• M17: 14,386,678 km (0.12 R)
• M18: 15,568,800 km (0.099 R)
• M19: 16,814,651 km (0.118 R)

Kuiper Belt

Range: 31.1 - 50.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 235 - 15,954 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit