🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1 AU - 1.04 AU

Year: 382 Days

Day: 12.5 Hours

Environment

Temp: 20 °C

Axial Tilt: 18.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.99 AU - 1.09 AU

Year: 393 Days

Day: 12.2 Hours

Environment

Temp: 28 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,588,815 km

• M1: 464,950 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.51 AU - 2.45 AU

Year: 1033 Days

Day: 44.6 Hours

Environment

Temp: -62 °C

Axial Tilt: 51.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,588,815 km

• M1: 49,218 km (0.049 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.63 AU - 2.33 AU

Year: 1033 Days

Day: 46.3 Hours

Environment

Temp: -65 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.7 AU - 2.64 AU

Year: 1185 Days

Day: 39.1 Hours

Environment

Temp: -89 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.8

Radius: 8.4

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.69 AU - 7.65 AU

Year: 5684 Days

Day: 7.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 150.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,588,815 km

• M1: 104,419 km (0.064 R)
• M2: 420,220 km (0.08 R)
• M3: 931,396 km (0.081 R)
• M4: 1,473,389 km (0.089 R)
• M5: 1,790,088 km (0.034 R)
• M6: 2,382,944 km (0.104 R)
• M7: 3,006,020 km (0.099 R)
• M8: 6,061,556 km (0.103 R)
• M9: 6,558,670 km (0.113 R)
• M10: 8,029,815 km (0.085 R)
• M11: 8,591,256 km (0.087 R)
• M12: 9,792,377 km (0.077 R)
• M13: 12,182,054 km (0.069 R)
• M14: 12,923,311 km (0.094 R)
• M15: 14,064,444 km (0.11 R)
• M16: 14,604,791 km (0.111 R)
• M17: 15,215,001 km (0.064 R)
• M18: 16,785,031 km (0.1 R)
• M19: 18,015,623 km (0.115 R)
• M20: 20,586,313 km (0.048 R)
• M21: 21,072,356 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.2

Radius: 5

Gravity: 12.53 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 12.42 AU - 19.06 AU

Year: 23159 Days

Day: 23.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 87,588,815 km

• M1: 62,831 km (0.096 R)
• M2: 307,274 km (0.107 R)
• M3: 626,665 km (0.112 R)
• M4: 910,901 km (0.1 R)
• M5: 1,419,833 km (0.068 R)
• M6: 1,653,505 km (0.1 R)
• M7: 2,425,281 km (0.109 R)
• M8: 2,668,078 km (0.117 R)
• M9: 3,440,302 km (0.09 R)
• M10: 3,863,365 km (0.071 R)
• M11: 5,019,308 km (0.094 R)
• M12: 5,752,637 km (0.059 R)
• M13: 6,347,737 km (0.026 R)
• M14: 6,513,042 km (0.098 R)
• M15: 10,343,945 km (0.104 R)
• M16: 12,858,087 km (0.058 R)
• M17: 13,802,348 km (0.11 R)
• M18: 16,055,741 km (0.113 R)
• M19: 16,286,122 km (0.102 R)
• M20: 16,990,279 km (0.112 R)
• M21: 24,977,160 km (0.101 R)
• M22: 26,229,593 km (0.118 R)
• M23: 32,021,424 km (0.109 R)
• M24: 34,126,565 km (0.092 R)
• M25: 35,277,571 km (0.054 R)
• M26: 37,119,121 km (0.074 R)
• M27: 38,473,132 km (0.113 R)
• M28: 40,423,439 km (0.102 R)
• M29: 54,385,109 km (0.114 R)
• M30: 58,998,408 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 424.7

Radius: 3.3

Gravity: 39 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 18.58 AU - 19.96 AU

Year: 31371 Days

Day: 19.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,588,815 km

• M1: 41,588 km (0.118 R)
• M2: 181,313 km (0.086 R)
• M3: 1,078,750 km (0.106 R)
• M4: 4,511,722 km (0.028 R)
• M5: 10,531,241 km (0.12 R)
• M6: 11,586,205 km (0.09 R)
• M7: 13,297,456 km (0.098 R)
• M8: 15,999,642 km (0.106 R)
• M9: 16,425,547 km (0.081 R)
• M10: 16,598,033 km (0.108 R)
• M11: 18,205,014 km (0.059 R)
• M12: 20,010,660 km (0.118 R)
• M13: 26,137,142 km (0.039 R)
• M14: 41,427,390 km (0.1 R)
• M15: 46,567,573 km (0.118 R)
• M16: 50,826,924 km (0.107 R)
• M17: 78,226,073 km (0.104 R)
• M18: 85,504,458 km (0.051 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 19,741 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit