🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.68 AU - 0.8 AU

Year: 270 Days

Day: 21.1 Hours

Environment

Temp: -11 °C

Axial Tilt: 11.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.43 AU - 1.89 AU

Year: 908 Days

Day: 45.5 Hours

Environment

Temp: -104 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.93 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Ice Giant

Semi-Major Axis: 16.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.9

Radius: 7.3

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 14.82 AU - 17.58 AU

Year: 27685 Days

Day: 20.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 108,069,274 km

• M1: 93,798 km (0.053 R)
• M2: 430,094 km (0.105 R)
• M3: 670,198 km (0.079 R)
• M4: 991,385 km (0.058 R)
• M5: 1,858,754 km (0.104 R)
• M6: 2,481,529 km (0.084 R)
• M7: 5,373,107 km (0.062 R)
• M8: 7,067,153 km (0.086 R)
• M9: 9,196,978 km (0.104 R)
• M10: 9,469,545 km (0.119 R)
• M11: 10,030,986 km (0.055 R)
• M12: 12,971,183 km (0.047 R)
• M13: 20,482,791 km (0.076 R)
• M14: 21,042,287 km (0.099 R)
• M15: 22,485,607 km (0.098 R)
• M16: 26,325,934 km (0.113 R)
• M17: 27,886,240 km (0.105 R)
• M18: 35,142,185 km (0.069 R)
• M19: 38,001,150 km (0.073 R)
• M20: 46,376,088 km (0.086 R)
• M21: 49,976,909 km (0.059 R)
• M22: 53,408,235 km (0.119 R)

Planet 4 - Ice Giant

Semi-Major Axis: 17.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.8

Radius: 7.1

Gravity: 17.16 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 13.15 AU - 21.13 AU

Year: 30129 Days

Day: 17.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 108,069,274 km

• M1: 110,403 km (0.119 R)
• M2: 1,018,612 km (0.049 R)
• M3: 1,795,773 km (0.079 R)
• M4: 2,261,321 km (0.073 R)
• M5: 3,463,340 km (0.059 R)
• M6: 3,933,676 km (0.106 R)
• M7: 4,332,354 km (0.041 R)
• M8: 5,126,270 km (0.118 R)
• M9: 7,050,996 km (0.092 R)
• M10: 10,192,851 km (0.102 R)
• M11: 10,736,490 km (0.116 R)
• M12: 11,660,855 km (0.049 R)
• M13: 13,585,880 km (0.105 R)
• M14: 14,751,696 km (0.096 R)
• M15: 15,096,819 km (0.115 R)
• M16: 29,605,867 km (0.081 R)
• M17: 30,017,112 km (0.092 R)
• M18: 31,273,734 km (0.064 R)
• M19: 31,700,238 km (0.114 R)
• M20: 35,100,298 km (0.093 R)
• M21: 38,572,764 km (0.094 R)
• M22: 39,392,710 km (0.105 R)
• M23: 42,440,916 km (0.096 R)
• M24: 42,963,760 km (0.113 R)
• M25: 43,667,618 km (0.091 R)
• M26: 46,559,944 km (0.091 R)
• M27: 49,963,594 km (0.093 R)
• M28: 61,830,446 km (0.072 R)
• M29: 70,461,046 km (0.12 R)
• M30: 73,423,682 km (0.08 R)
• M31: 74,177,207 km (0.097 R)
• M32: 83,624,611 km (0.076 R)
• M33: 87,786,873 km (0.097 R)
• M34: 93,548,336 km (0.06 R)
• M35: 102,030,535 km (0.115 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 10,720 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit