🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.56 AU - 0.56 AU

Year: 155 Days

Day: 32.1 Hours

Environment

Temp: 223 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.75 AU - 1.09 AU

Year: 327 Days

Day: 41.5 Hours

Environment

Temp: 27 °C

Axial Tilt: 39.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.13 AU - 1.33 AU

Year: 506 Days

Day: 18 Hours

Environment

Temp: -16 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.17 AU - 1.39 AU

Year: 537 Days

Day: 40.9 Hours

Environment

Temp: -9 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.88 AU - 4.16 AU

Year: 2449 Days

Day: 29.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.38 AU - 4.62 AU

Year: 2967 Days

Day: 42.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 48.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,090,413 km

• M1: 725,400 km (0.1 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.37 AU - 5.21 AU

Year: 3295 Days

Day: 30.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.3

Radius: 8.2

Gravity: 13.98 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.18 AU - 5.36 AU

Year: 3864 Days

Day: 12 Hours

Environment

Temp: -130 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,090,413 km

• M1: 102,026 km (0.069 R)
• M2: 817,552 km (0.119 R)
• M3: 1,132,306 km (0.117 R)
• M4: 1,437,636 km (0.105 R)
• M5: 2,616,766 km (0.059 R)
• M6: 3,414,571 km (0.036 R)
• M7: 4,246,485 km (0.098 R)
• M8: 4,735,521 km (0.072 R)
• M9: 5,020,205 km (0.114 R)
• M10: 6,092,972 km (0.118 R)
• M11: 6,430,315 km (0.113 R)
• M12: 7,517,592 km (0.093 R)
• M13: 8,233,717 km (0.083 R)
• M14: 8,532,464 km (0.097 R)
• M15: 10,920,794 km (0.078 R)
• M16: 12,510,870 km (0.113 R)
• M17: 13,259,158 km (0.085 R)
• M18: 13,826,583 km (0.093 R)
• M19: 19,618,714 km (0.091 R)
• M20: 20,018,289 km (0.113 R)
• M21: 22,098,597 km (0.115 R)
• M22: 23,562,861 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.5

Radius: 10.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.46 AU - 7.3 AU

Year: 5976 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 32,090,413 km

• M1: 166,951 km (0.073 R)
• M2: 506,838 km (0.118 R)
• M3: 888,462 km (0.088 R)
• M4: 1,313,170 km (0.111 R)
• M5: 1,699,881 km (0.118 R)
• M6: 2,303,508 km (0.09 R)
• M7: 2,873,925 km (0.111 R)
• M8: 3,892,836 km (0.107 R)
• M9: 4,372,297 km (0.107 R)
• M10: 4,863,876 km (0.091 R)
• M11: 5,805,594 km (0.034 R)
• M12: 6,629,878 km (0.109 R)
• M13: 8,277,101 km (0.096 R)
• M14: 9,237,369 km (0.062 R)
• M15: 9,744,656 km (0.064 R)
• M16: 11,283,419 km (0.069 R)
• M17: 12,311,306 km (0.114 R)
• M18: 13,723,211 km (0.117 R)
• M19: 14,609,279 km (0.077 R)
• M20: 15,124,195 km (0.079 R)
• M21: 18,472,046 km (0.083 R)
• M22: 19,277,930 km (0.067 R)
• M23: 24,056,834 km (0.075 R)
• M24: 24,775,203 km (0.069 R)
• M25: 26,004,448 km (0.064 R)
• M26: 27,359,805 km (0.094 R)
• M27: 31,329,534 km (0.1 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 16,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit