🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.64 AU - 0.74 AU

Year: 206 Days

Day: 14.5 Hours

Environment

Temp: 163 °C

Axial Tilt: 35.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 113,421,614 km

• M1: 59,690 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.22 AU - 3.52 AU

Year: 1750 Days

Day: 39.7 Hours

Environment

Temp: -96 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.83 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Ice Giant

Semi-Major Axis: 12.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.6

Radius: 7.9

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 11.85 AU - 13.71 AU

Year: 16443 Days

Day: 15.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 113,421,614 km

• M1: 98,286 km (0.07 R)
• M2: 941,120 km (0.119 R)
• M3: 2,114,566 km (0.101 R)
• M4: 2,366,339 km (0.107 R)
• M5: 2,954,558 km (0.12 R)
• M6: 6,196,643 km (0.051 R)
• M7: 8,942,512 km (0.091 R)
• M8: 9,450,546 km (0.094 R)
• M9: 12,533,758 km (0.117 R)
• M10: 17,372,053 km (0.09 R)
• M11: 20,245,529 km (0.109 R)
• M12: 29,612,001 km (0.064 R)
• M13: 30,172,395 km (0.086 R)
• M14: 30,968,704 km (0.093 R)
• M15: 31,430,064 km (0.026 R)
• M16: 33,805,678 km (0.12 R)
• M17: 35,664,282 km (0.101 R)
• M18: 45,688,237 km (0.072 R)
• M19: 50,141,915 km (0.113 R)

Planet 4 - Ice Giant

Semi-Major Axis: 20.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.6

Radius: 5.8

Gravity: 25.2 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 15.57 AU - 24.87 AU

Year: 32722 Days

Day: 17.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 113,421,614 km

• M1: 72,256 km (0.117 R)
• M2: 267,930 km (0.071 R)
• M3: 527,781 km (0.079 R)
• M4: 789,877 km (0.115 R)
• M5: 992,582 km (0.115 R)
• M6: 1,397,992 km (0.111 R)
• M7: 1,822,102 km (0.108 R)
• M8: 2,429,469 km (0.107 R)
• M9: 2,614,073 km (0.117 R)
• M10: 5,404,821 km (0.119 R)
• M11: 5,907,171 km (0.061 R)
• M12: 6,490,304 km (0.114 R)
• M13: 8,350,553 km (0.11 R)
• M14: 8,958,968 km (0.066 R)
• M15: 15,464,680 km (0.104 R)
• M16: 16,568,114 km (0.09 R)
• M17: 17,235,470 km (0.074 R)
• M18: 17,429,349 km (0.05 R)
• M19: 20,085,010 km (0.059 R)
• M20: 20,624,759 km (0.086 R)
• M21: 22,187,907 km (0.098 R)
• M22: 27,480,530 km (0.094 R)
• M23: 29,925,558 km (0.081 R)
• M24: 37,308,512 km (0.113 R)
• M25: 37,796,201 km (0.073 R)
• M26: 40,299,273 km (0.066 R)
• M27: 41,504,284 km (0.085 R)
• M28: 51,217,374 km (0.117 R)
• M29: 51,417,686 km (0.112 R)
• M30: 53,244,126 km (0.104 R)
• M31: 53,449,674 km (0.118 R)
• M32: 57,672,822 km (0.054 R)
• M33: 60,087,930 km (0.082 R)
• M34: 71,167,447 km (0.072 R)
• M35: 73,433,556 km (0.118 R)
• M36: 78,640,758 km (0.089 R)
• M37: 81,606,985 km (0.032 R)
• M38: 89,492,289 km (0.108 R)
• M39: 94,218,385 km (0.1 R)
• M40: 96,032,708 km (0.08 R)
• M41: 110,054,965 km (0.057 R)

Kuiper Belt

Range: 30.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 19,338 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit