🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.5 AU - 0.71 AU

Year: 174 Days

Day: 28.4 Hours

Environment

Temp: 132 °C

Axial Tilt: 131.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Asteroid Belt

Center: 3.9 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.8

Radius: 13.5

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 5.88 AU - 8.52 AU

Year: 7240 Days

Day: 12.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,883,236 km

• M1: 167,849 km (0.109 R)
• M2: 658,679 km (0.096 R)
• M3: 1,388,119 km (0.12 R)
• M4: 2,076,867 km (0.112 R)
• M5: 3,320,923 km (0.101 R)
• M6: 4,069,212 km (0.047 R)
• M7: 4,619,582 km (0.07 R)
• M8: 5,806,342 km (0.065 R)
• M9: 6,334,722 km (0.049 R)
• M10: 7,450,124 km (0.11 R)
• M11: 13,194,383 km (0.085 R)
• M12: 13,762,256 km (0.117 R)
• M13: 19,342,406 km (0.116 R)
• M14: 22,468,703 km (0.101 R)
• M15: 23,034,332 km (0.026 R)
• M16: 26,629,618 km (0.095 R)
• M17: 31,078,658 km (0.101 R)
• M18: 34,164,115 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 11.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 13.2

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 10.69 AU - 12.91 AU

Year: 15190 Days

Day: 5.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,883,236 km

• M1: 164,558 km (0.089 R)
• M2: 621,878 km (0.051 R)
• M3: 1,173,595 km (0.117 R)
• M4: 1,789,939 km (0.118 R)
• M5: 2,388,779 km (0.059 R)
• M6: 3,328,852 km (0.112 R)
• M7: 4,371,250 km (0.107 R)
• M8: 4,940,470 km (0.06 R)
• M9: 7,314,887 km (0.092 R)
• M10: 8,120,172 km (0.092 R)
• M11: 8,898,829 km (0.093 R)
• M12: 12,574,150 km (0.043 R)
• M13: 15,625,797 km (0.093 R)
• M14: 16,379,920 km (0.109 R)
• M15: 16,830,808 km (0.093 R)
• M16: 18,233,886 km (0.055 R)
• M17: 18,999,229 km (0.051 R)
• M18: 21,886,617 km (0.094 R)
• M19: 24,132,081 km (0.106 R)
• M20: 26,527,143 km (0.111 R)
• M21: 33,098,828 km (0.102 R)
• M22: 33,820,638 km (0.102 R)

Planet 4 - Ice Giant

Semi-Major Axis: 17.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.9

Radius: 7.2

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 17.07 AU - 17.87 AU

Year: 27363 Days

Day: 22.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,883,236 km

• M1: 94,097 km (0.059 R)
• M2: 557,701 km (0.079 R)
• M3: 1,009,337 km (0.105 R)
• M4: 1,363,136 km (0.052 R)
• M5: 1,653,804 km (0.045 R)
• M6: 1,933,104 km (0.073 R)
• M7: 2,321,759 km (0.063 R)
• M8: 3,890,442 km (0.107 R)
• M9: 4,480,157 km (0.072 R)
• M10: 5,510,138 km (0.062 R)
• M11: 10,442,081 km (0.052 R)
• M12: 16,491,819 km (0.067 R)
• M13: 20,245,379 km (0.092 R)
• M14: 22,917,646 km (0.112 R)
• M15: 23,384,690 km (0.09 R)
• M16: 26,322,045 km (0.096 R)
• M17: 38,792,822 km (0.055 R)
• M18: 45,477,902 km (0.068 R)
• M19: 48,629,481 km (0.09 R)
• M20: 54,531,117 km (0.119 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 11,338 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit