🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.57 AU - 0.67 AU

Year: 315 Days

Day: 34.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.1

Radius: 8.5

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.73 AU - 0.75 AU

Year: 411 Days

Day: 12.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,830,580 km

• M1: 106,514 km (0.109 R)
• M2: 604,226 km (0.059 R)
• M3: 1,060,051 km (0.098 R)
• M4: 1,347,578 km (0.057 R)
• M5: 1,758,673 km (0.111 R)
• M6: 2,228,559 km (0.092 R)
• M7: 2,621,104 km (0.115 R)
• M8: 3,215,756 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.3

Radius: 14

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.97 AU - 2.81 AU

Year: 2386 Days

Day: 6.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,830,580 km

• M1: 174,282 km (0.053 R)
• M2: 630,854 km (0.092 R)
• M3: 1,215,782 km (0.052 R)
• M4: 2,267,305 km (0.043 R)
• M5: 3,294,744 km (0.117 R)
• M6: 4,003,089 km (0.096 R)
• M7: 4,454,725 km (0.082 R)
• M8: 5,284,096 km (0.088 R)
• M9: 6,324,100 km (0.106 R)
• M10: 8,029,965 km (0.077 R)
• M11: 8,643,615 km (0.083 R)
• M12: 9,607,923 km (0.081 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.7

Radius: 3.5

Gravity: 80.22 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 7.21 AU - 11.83 AU

Year: 18966 Days

Day: 24.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 82,830,580 km

• M1: 45,029 km (0.118 R)
• M2: 457,470 km (0.108 R)
• M3: 715,826 km (0.104 R)
• M4: 877,840 km (0.108 R)
• M5: 1,037,760 km (0.077 R)
• M6: 1,306,289 km (0.047 R)
• M7: 2,000,572 km (0.083 R)
• M8: 2,557,824 km (0.102 R)
• M9: 2,938,252 km (0.036 R)
• M10: 3,183,891 km (0.069 R)
• M11: 4,203,102 km (0.102 R)
• M12: 4,586,222 km (0.102 R)
• M13: 5,302,197 km (0.095 R)
• M14: 5,917,942 km (0.108 R)
• M15: 6,625,690 km (0.09 R)
• M16: 9,142,075 km (0.083 R)
• M17: 9,429,902 km (0.095 R)
• M18: 10,454,049 km (0.036 R)
• M19: 10,960,886 km (0.094 R)
• M20: 11,417,459 km (0.056 R)
• M21: 13,892,556 km (0.079 R)
• M22: 14,582,202 km (0.041 R)
• M23: 15,214,253 km (0.069 R)
• M24: 20,842,873 km (0.113 R)
• M25: 25,278,749 km (0.094 R)
• M26: 25,959,719 km (0.061 R)
• M27: 26,886,627 km (0.1 R)
• M28: 28,439,453 km (0.062 R)
• M29: 34,000,454 km (0.104 R)
• M30: 34,275,415 km (0.092 R)
• M31: 40,860,714 km (0.083 R)
• M32: 45,356,429 km (0.05 R)
• M33: 46,024,533 km (0.111 R)
• M34: 47,209,198 km (0.099 R)
• M35: 51,787,641 km (0.051 R)
• M36: 59,196,326 km (0.118 R)
• M37: 65,141,495 km (0.06 R)
• M38: 66,419,360 km (0.061 R)
• M39: 75,834,901 km (0.093 R)
• M40: 77,723,723 km (0.107 R)
• M41: 78,200,791 km (0.113 R)
• M42: 78,439,998 km (0.053 R)
• M43: 79,160,760 km (0.115 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 19,862 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit