🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.63 AU - 1.03 AU

Year: 271 Days

Day: 25 Hours

Environment

Temp: 97 °C

Axial Tilt: 33.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.09 AU - 1.45 AU

Year: 513 Days

Day: 27.4 Hours

Environment

Temp: 7 °C

Axial Tilt: 93.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.43 AU - 2.03 AU

Year: 815 Days

Day: 30.4 Hours

Environment

Temp: -37 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.54 AU - 3.32 AU

Year: 1796 Days

Day: 34.5 Hours

Environment

Temp: -92 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.74 AU - 3.28 AU

Year: 1870 Days

Day: 21.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.9

Radius: 8.2

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.37 AU - 8.73 AU

Year: 7430 Days

Day: 5.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,159,972 km

• M1: 102,026 km (0.072 R)
• M2: 534,214 km (0.114 R)
• M3: 957,127 km (0.113 R)
• M4: 1,385,127 km (0.062 R)
• M5: 2,755,742 km (0.115 R)
• M6: 4,380,375 km (0.113 R)
• M7: 16,423,004 km (0.117 R)
• M8: 16,804,927 km (0.097 R)
• M9: 17,062,834 km (0.09 R)
• M10: 19,152,716 km (0.107 R)
• M11: 20,957,914 km (0.075 R)
• M12: 22,794,826 km (0.055 R)
• M13: 23,510,502 km (0.119 R)
• M14: 30,929,360 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 482.3

Radius: 3.4

Gravity: 41.72 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 13.04 AU - 18.54 AU

Year: 22472 Days

Day: 21.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,159,972 km

• M1: 46,675 km (0.026 R)
• M2: 199,264 km (0.11 R)
• M3: 875,148 km (0.108 R)
• M4: 1,091,466 km (0.066 R)
• M5: 4,150,144 km (0.054 R)
• M6: 4,412,988 km (0.11 R)
• M7: 7,112,930 km (0.103 R)
• M8: 12,882,920 km (0.111 R)
• M9: 14,308,438 km (0.084 R)
• M10: 15,914,820 km (0.089 R)
• M11: 19,119,954 km (0.08 R)
• M12: 29,791,668 km (0.074 R)
• M13: 36,366,644 km (0.111 R)
• M14: 38,469,840 km (0.05 R)
• M15: 43,689,759 km (0.116 R)
• M16: 46,711,636 km (0.054 R)
• M17: 51,761,910 km (0.062 R)
• M18: 56,422,931 km (0.102 R)
• M19: 57,536,987 km (0.036 R)
• M20: 61,943,093 km (0.118 R)
• M21: 71,203,500 km (0.117 R)

Kuiper Belt

Range: 30.6 - 57.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 12,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit