🌌 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: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.52 AU - 0.58 AU

Year: 148 Days

Day: 32 Hours

Environment

Temp: 249 °C

Axial Tilt: 12.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,035,792 km

• M1: 52,658 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.72 AU - 0.74 AU

Year: 227 Days

Day: 32.2 Hours

Environment

Temp: 148 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.18 AU - 1.28 AU

Year: 496 Days

Day: 18.1 Hours

Environment

Temp: -7 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.41 AU - 1.45 AU

Year: 621 Days

Day: 38.4 Hours

Environment

Temp: -35 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.36 AU - 3.94 AU

Year: 2534 Days

Day: 20.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 49.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 3.26 AU - 5.2 AU

Year: 3162 Days

Day: 17.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.1

Radius: 13.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.69 AU - 7.75 AU

Year: 7051 Days

Day: 9.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,035,792 km

• M1: 169,494 km (0.059 R)
• M2: 710,590 km (0.106 R)
• M3: 1,293,124 km (0.107 R)
• M4: 2,525,810 km (0.085 R)
• M5: 2,952,464 km (0.097 R)
• M6: 5,396,594 km (0.109 R)
• M7: 6,857,716 km (0.085 R)
• M8: 9,129,210 km (0.086 R)
• M9: 11,146,388 km (0.115 R)
• M10: 11,913,226 km (0.072 R)
• M11: 15,279,029 km (0.111 R)
• M12: 15,747,569 km (0.078 R)
• M13: 16,836,941 km (0.085 R)
• M14: 17,975,979 km (0.104 R)
• M15: 23,589,789 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.6

Radius: 12

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 6.94 AU - 11.02 AU

Year: 9780 Days

Day: 5.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,035,792 km

• M1: 149,598 km (0.067 R)
• M2: 732,730 km (0.102 R)
• M3: 1,164,320 km (0.107 R)
• M4: 2,615,120 km (0.1 R)
• M5: 4,817,500 km (0.082 R)
• M6: 7,367,994 km (0.062 R)
• M7: 7,745,579 km (0.114 R)
• M8: 8,631,498 km (0.066 R)
• M9: 9,436,634 km (0.111 R)
• M10: 9,882,735 km (0.109 R)
• M11: 12,504,736 km (0.089 R)
• M12: 16,113,635 km (0.082 R)
• M13: 16,824,076 km (0.098 R)
• M14: 18,384,082 km (0.097 R)
• M15: 22,221,567 km (0.096 R)
• M16: 22,658,991 km (0.117 R)
• M17: 26,367,522 km (0.118 R)
• M18: 27,354,270 km (0.083 R)
• M19: 40,405,487 km (0.064 R)
• M20: 44,978,844 km (0.064 R)

Kuiper Belt

Range: 30.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 14,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit