🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.6 AU - 0.98 AU

Year: 253 Days

Day: 18.5 Hours

Environment

Temp: 101 °C

Axial Tilt: 37.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 102,552,698 km

• M1: 49,218 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.81 AU - 1.23 AU

Year: 371 Days

Day: 12.6 Hours

Environment

Temp: 35 °C

Axial Tilt: 4.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.89 AU - 1.37 AU

Year: 432 Days

Day: 12.4 Hours

Environment

Temp: 5 °C

Axial Tilt: 28.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.14 AU - 1.32 AU

Year: 491 Days

Day: 23.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 37.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.52 AU - 1.7 AU

Year: 735 Days

Day: 24.8 Hours

Environment

Temp: -28 °C

Axial Tilt: 49.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.9 AU - 3 AU

Year: 1380 Days

Day: 37.1 Hours

Environment

Temp: -72 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.1

Radius: 3.5

Gravity: 11.76 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 13.33 AU - 15.87 AU

Year: 20077 Days

Day: 16.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 102,552,698 km

• M1: 118,033 km (0.114 R)
• M2: 422,764 km (0.118 R)
• M3: 821,891 km (0.109 R)
• M4: 1,380,788 km (0.078 R)
• M5: 1,514,828 km (0.093 R)
• M6: 2,589,988 km (0.025 R)
• M7: 3,597,230 km (0.106 R)
• M8: 3,984,090 km (0.06 R)
• M9: 4,962,760 km (0.104 R)
• M10: 5,607,826 km (0.099 R)
• M11: 5,811,728 km (0.088 R)
• M12: 7,340,468 km (0.1 R)
• M13: 7,708,629 km (0.113 R)
• M14: 9,687,659 km (0.084 R)
• M15: 12,433,677 km (0.074 R)
• M16: 13,372,853 km (0.107 R)
• M17: 13,736,824 km (0.12 R)
• M18: 14,045,295 km (0.11 R)
• M19: 16,129,343 km (0.094 R)
• M20: 19,705,630 km (0.109 R)
• M21: 21,387,708 km (0.114 R)
• M22: 24,852,096 km (0.092 R)
• M23: 27,196,893 km (0.036 R)
• M24: 39,150,361 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.9

Radius: 6.8

Gravity: 15.46 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 15.56 AU - 23.14 AU

Year: 30633 Days

Day: 17 Hours

Environment

Temp: -195 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 102,552,698 km

• M1: 84,523 km (0.101 R)
• M2: 423,512 km (0.111 R)
• M3: 743,950 km (0.115 R)
• M4: 993,479 km (0.119 R)
• M5: 1,609,972 km (0.083 R)
• M6: 2,123,991 km (0.042 R)
• M7: 2,557,824 km (0.1 R)
• M8: 3,569,704 km (0.053 R)
• M9: 3,800,534 km (0.102 R)
• M10: 6,496,138 km (0.09 R)
• M11: 7,568,306 km (0.12 R)
• M12: 8,932,788 km (0.095 R)
• M13: 13,047,328 km (0.106 R)
• M14: 13,281,149 km (0.12 R)
• M15: 14,996,887 km (0.06 R)
• M16: 17,983,310 km (0.114 R)
• M17: 18,762,864 km (0.102 R)
• M18: 22,888,325 km (0.051 R)
• M19: 24,505,627 km (0.069 R)
• M20: 31,879,306 km (0.09 R)
• M21: 35,231,196 km (0.11 R)
• M22: 38,012,819 km (0.1 R)
• M23: 40,937,457 km (0.09 R)
• M24: 42,968,398 km (0.09 R)
• M25: 44,888,337 km (0.032 R)
• M26: 45,779,641 km (0.113 R)
• M27: 53,538,086 km (0.03 R)
• M28: 58,252,064 km (0.114 R)
• M29: 63,012,867 km (0.06 R)
• M30: 77,556,473 km (0.115 R)
• M31: 78,067,798 km (0.05 R)
• M32: 79,615,388 km (0.109 R)
• M33: 85,737,382 km (0.116 R)
• M34: 88,773,172 km (0.095 R)
• M35: 99,810,951 km (0.051 R)
• M36: 101,328,023 km (0.094 R)

Kuiper Belt

Range: 30.5 - 52.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 19,846 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit