🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.72 AU - 1.06 AU

Year: 302 Days

Day: 29.5 Hours

Environment

Temp: 126 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.45 AU - 2.05 AU

Year: 833 Days

Day: 26.6 Hours

Environment

Temp: -57 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.67 AU - 2.13 AU

Year: 943 Days

Day: 40.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,635,765 km

• M1: 268,229 km (0.117 R)

Asteroid Belt

Center: 5.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.4

Radius: 10.3

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 8.37 AU - 10.63 AU

Year: 10538 Days

Day: 5.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,635,765 km

• M1: 129,851 km (0.052 R)
• M2: 597,793 km (0.101 R)
• M3: 1,234,930 km (0.107 R)
• M4: 1,929,513 km (0.084 R)
• M5: 2,388,779 km (0.077 R)
• M6: 5,154,993 km (0.113 R)
• M7: 12,614,092 km (0.08 R)
• M8: 17,123,720 km (0.094 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.8

Radius: 4.7

Gravity: 30.73 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 11.25 AU - 15.87 AU

Year: 17971 Days

Day: 20.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 70,635,765 km

• M1: 59,241 km (0.074 R)
• M2: 273,615 km (0.096 R)
• M3: 512,672 km (0.119 R)
• M4: 1,242,560 km (0.106 R)
• M5: 1,945,072 km (0.096 R)
• M6: 2,735,696 km (0.039 R)
• M7: 2,981,934 km (0.118 R)
• M8: 5,139,435 km (0.109 R)
• M9: 7,479,894 km (0.079 R)
• M10: 7,814,993 km (0.114 R)
• M11: 9,925,071 km (0.109 R)
• M12: 10,926,628 km (0.082 R)
• M13: 13,900,335 km (0.113 R)
• M14: 14,850,431 km (0.109 R)
• M15: 16,236,306 km (0.111 R)
• M16: 19,351,382 km (0.106 R)
• M17: 19,710,417 km (0.088 R)
• M18: 22,545,297 km (0.061 R)
• M19: 23,956,603 km (0.091 R)
• M20: 24,579,080 km (0.11 R)
• M21: 25,105,963 km (0.06 R)
• M22: 27,177,146 km (0.102 R)
• M23: 29,595,695 km (0.089 R)
• M24: 32,028,904 km (0.109 R)
• M25: 33,809,418 km (0.096 R)
• M26: 34,723,910 km (0.041 R)
• M27: 37,013,206 km (0.093 R)
• M28: 37,566,120 km (0.074 R)
• M29: 40,413,715 km (0.113 R)
• M30: 43,248,894 km (0.065 R)
• M31: 44,793,193 km (0.112 R)
• M32: 45,421,055 km (0.103 R)
• M33: 46,214,073 km (0.114 R)
• M34: 46,373,694 km (0.111 R)
• M35: 52,545,205 km (0.088 R)
• M36: 54,658,574 km (0.099 R)
• M37: 59,241,954 km (0.069 R)
• M38: 61,144,689 km (0.118 R)
• M39: 63,678,877 km (0.104 R)
• M40: 63,876,645 km (0.03 R)
• M41: 65,071,932 km (0.1 R)
• M42: 68,125,374 km (0.11 R)

Kuiper Belt

Range: 30.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 19,742 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit