🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.76 AU - 1.16 AU

Year: 340 Days

Day: 28.8 Hours

Environment

Temp: 147 °C

Axial Tilt: 35.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.08 AU - 1.46 AU

Year: 518 Days

Day: 16.2 Hours

Environment

Temp: -12 °C

Axial Tilt: 13.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.68 AU - 2.76 AU

Year: 1196 Days

Day: 35.3 Hours

Environment

Temp: -65 °C

Axial Tilt: 21.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 18,549,920 km

• M1: 693,386 km (0.074 R)
• M2: 753,375 km (0.062 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2 AU - 3.1 AU

Year: 1473 Days

Day: 17.3 Hours

Environment

Temp: -79 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.8

Radius: 12.3

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.5 AU - 7.52 AU

Year: 6712 Days

Day: 10.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 18,549,920 km

• M1: 153,487 km (0.098 R)
• M2: 622,776 km (0.09 R)
• M3: 1,368,372 km (0.111 R)
• M4: 2,293,784 km (0.092 R)
• M5: 2,925,087 km (0.027 R)
• M6: 4,036,450 km (0.116 R)
• M7: 5,019,158 km (0.11 R)
• M8: 5,535,720 km (0.08 R)
• M9: 6,188,864 km (0.034 R)
• M10: 7,610,193 km (0.05 R)
• M11: 8,672,039 km (0.111 R)
• M12: 9,783,850 km (0.094 R)
• M13: 15,133,620 km (0.107 R)
• M14: 16,020,735 km (0.071 R)
• M15: 17,347,967 km (0.056 R)
• M16: 21,140,423 km (0.107 R)
• M17: 21,769,333 km (0.087 R)
• M18: 23,646,786 km (0.114 R)
• M19: 27,257,630 km (0.11 R)
• M20: 33,497,955 km (0.09 R)
• M21: 34,568,926 km (0.082 R)
• M22: 35,552,233 km (0.079 R)
• M23: 37,803,831 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 14.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.34 AU - 7.9 AU

Year: 6871 Days

Day: 11.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,549,920 km

• M1: 186,848 km (0.086 R)
• M2: 1,133,653 km (0.069 R)
• M3: 1,600,398 km (0.067 R)
• M4: 2,588,492 km (0.105 R)
• M5: 3,972,272 km (0.068 R)
• M6: 5,582,394 km (0.116 R)
• M7: 6,454,101 km (0.119 R)
• M8: 15,781,229 km (0.087 R)
• M9: 17,628,912 km (0.05 R)
• M10: 18,439,882 km (0.106 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 12,935 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit