🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.52 AU - 0.82 AU

Year: 208 Days

Day: 17.3 Hours

Environment

Temp: 149 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.66 AU - 3.9 AU

Year: 2250 Days

Day: 47.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.51 AU - 3.73 AU

Year: 2609 Days

Day: 47.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.3

Radius: 13.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.1 AU - 5.14 AU

Year: 4388 Days

Day: 12.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,490,760 km

• M1: 162,912 km (0.091 R)
• M2: 591,510 km (0.049 R)
• M3: 1,234,482 km (0.114 R)
• M4: 1,691,503 km (0.114 R)
• M5: 2,367,835 km (0.037 R)
• M6: 2,997,493 km (0.088 R)
• M7: 3,612,639 km (0.058 R)
• M8: 4,264,736 km (0.075 R)
• M9: 4,968,594 km (0.082 R)
• M10: 6,153,708 km (0.095 R)
• M11: 6,892,722 km (0.105 R)
• M12: 9,995,083 km (0.105 R)
• M13: 10,583,301 km (0.079 R)
• M14: 11,373,178 km (0.091 R)
• M15: 12,679,916 km (0.109 R)
• M16: 15,757,443 km (0.067 R)
• M17: 16,787,873 km (0.026 R)
• M18: 17,439,372 km (0.102 R)
• M19: 18,416,994 km (0.063 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 876.8

Radius: 5.5

Gravity: 28.99 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 11.46 AU - 12.9 AU

Year: 16100 Days

Day: 21.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,490,760 km

• M1: 68,516 km (0.04 R)
• M2: 290,669 km (0.063 R)
• M3: 606,171 km (0.094 R)
• M4: 778,208 km (0.113 R)
• M5: 1,080,695 km (0.076 R)
• M6: 2,635,166 km (0.112 R)
• M7: 2,850,887 km (0.092 R)
• M8: 3,290,854 km (0.101 R)
• M9: 3,541,430 km (0.062 R)
• M10: 4,305,128 km (0.037 R)
• M11: 4,848,168 km (0.079 R)
• M12: 5,136,443 km (0.041 R)
• M13: 5,707,458 km (0.104 R)
• M14: 6,111,073 km (0.12 R)
• M15: 7,065,807 km (0.059 R)
• M16: 8,471,129 km (0.077 R)
• M17: 10,883,095 km (0.11 R)
• M18: 13,087,570 km (0.068 R)
• M19: 16,359,724 km (0.043 R)
• M20: 17,338,692 km (0.108 R)
• M21: 26,284,795 km (0.09 R)
• M22: 32,802,325 km (0.114 R)
• M23: 38,025,236 km (0.082 R)
• M24: 39,737,234 km (0.101 R)
• M25: 40,759,286 km (0.096 R)
• M26: 45,497,051 km (0.086 R)
• M27: 47,262,605 km (0.072 R)
• M28: 49,743,087 km (0.093 R)
• M29: 54,245,833 km (0.077 R)
• M30: 58,824,576 km (0.066 R)
• M31: 62,471,772 km (0.079 R)
• M32: 63,852,560 km (0.095 R)
• M33: 65,657,757 km (0.079 R)
• M34: 66,879,822 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 11,659 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit