🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.53 AU - 0.57 AU

Year: 143 Days

Day: 16.5 Hours

Environment

Temp: 273 °C

Axial Tilt: 7.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.83 AU - 0.89 AU

Year: 280 Days

Day: 28.9 Hours

Environment

Temp: 144 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.52 AU - 1.66 AU

Year: 705 Days

Day: 27.1 Hours

Environment

Temp: -33 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,714,330 km

• M1: 48,021 km (0.086 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.52 AU - 2.48 AU

Year: 994 Days

Day: 28.2 Hours

Environment

Temp: -57 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.27 AU - 2.74 AU

Year: 1389 Days

Day: 26.8 Hours

Environment

Temp: -69 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,714,330 km

• M1: 879,037 km (0.109 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.15 AU - 3.27 AU

Year: 1568 Days

Day: 44.6 Hours

Environment

Temp: -73 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 49,714,330 km

• M1: 59,839 km (0.093 R)
• M2: 270,772 km (0.075 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.15 AU - 3.95 AU

Year: 2351 Days

Day: 37.9 Hours

Environment

Temp: -96 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.84 AU - 4.74 AU

Year: 2593 Days

Day: 21.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.58 AU - 5.62 AU

Year: 3467 Days

Day: 42.3 Hours

Environment

Temp: -116 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,714,330 km

• M1: 1,270,086 km (0.095 R)

Asteroid Belt

Center: 6.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Gas Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.6

Radius: 11.2

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.02 AU - 9.24 AU

Year: 8910 Days

Day: 13.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 49,714,330 km

• M1: 140,921 km (0.12 R)
• M2: 1,115,103 km (0.114 R)
• M3: 2,569,792 km (0.107 R)
• M4: 3,080,071 km (0.043 R)
• M5: 4,080,880 km (0.084 R)
• M6: 5,091,713 km (0.115 R)
• M7: 6,373,468 km (0.077 R)
• M8: 6,793,090 km (0.103 R)
• M9: 7,354,082 km (0.087 R)
• M10: 7,859,124 km (0.058 R)
• M11: 10,477,087 km (0.12 R)
• M12: 11,008,907 km (0.08 R)
• M13: 12,126,703 km (0.081 R)
• M14: 13,442,117 km (0.101 R)
• M15: 13,943,270 km (0.099 R)
• M16: 15,183,585 km (0.059 R)
• M17: 16,213,567 km (0.095 R)
• M18: 18,260,215 km (0.043 R)
• M19: 19,345,697 km (0.053 R)
• M20: 20,720,951 km (0.1 R)
• M21: 21,390,252 km (0.104 R)
• M22: 23,755,843 km (0.093 R)
• M23: 25,048,817 km (0.072 R)
• M24: 28,897,521 km (0.059 R)
• M25: 30,263,350 km (0.063 R)
• M26: 31,016,426 km (0.102 R)
• M27: 31,892,321 km (0.062 R)
• M28: 35,919,346 km (0.047 R)
• M29: 42,778,110 km (0.119 R)
• M30: 44,689,073 km (0.075 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 14,978 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit