🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.54 AU - 0.66 AU

Year: 167 Days

Day: 33.6 Hours

Environment

Temp: 201 °C

Axial Tilt: 49.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,754,006 km

• M1: 133,591 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.73 AU - 1.21 AU

Year: 344 Days

Day: 17.7 Hours

Environment

Temp: 122 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.19 AU - 1.51 AU

Year: 565 Days

Day: 47.4 Hours

Environment

Temp: 9 °C

Axial Tilt: 47.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 81,754,006 km

• M1: 523,144 km (0.026 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.35 AU - 2.37 AU

Year: 1305 Days

Day: 37.6 Hours

Environment

Temp: -74 °C

Axial Tilt: 129.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.18 AU - 4.3 AU

Year: 3142 Days

Day: 38.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.2

Radius: 13.7

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.54 AU - 5.9 AU

Year: 4923 Days

Day: 9.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,754,006 km

• M1: 170,841 km (0.086 R)
• M2: 814,112 km (0.08 R)
• M3: 1,286,392 km (0.071 R)
• M4: 1,773,184 km (0.055 R)
• M5: 2,969,069 km (0.099 R)
• M6: 3,976,311 km (0.03 R)
• M7: 4,581,734 km (0.038 R)
• M8: 5,248,192 km (0.086 R)
• M9: 5,822,050 km (0.108 R)
• M10: 6,465,321 km (0.097 R)
• M11: 7,215,404 km (0.103 R)
• M12: 9,345,828 km (0.069 R)
• M13: 13,906,768 km (0.092 R)
• M14: 14,765,011 km (0.107 R)
• M15: 16,639,921 km (0.077 R)
• M16: 18,442,126 km (0.103 R)
• M17: 19,128,631 km (0.085 R)
• M18: 19,595,825 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.5

Radius: 4.7

Gravity: 15.19 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 18.94 AU - 20.76 AU

Year: 31828 Days

Day: 22.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,754,006 km

• M1: 58,493 km (0.115 R)
• M2: 550,969 km (0.102 R)
• M3: 1,259,913 km (0.092 R)
• M4: 1,445,265 km (0.106 R)
• M5: 1,648,718 km (0.087 R)
• M6: 1,851,872 km (0.072 R)
• M7: 2,113,369 km (0.11 R)
• M8: 2,445,476 km (0.103 R)
• M9: 2,636,363 km (0.068 R)
• M10: 3,021,129 km (0.088 R)
• M11: 3,561,177 km (0.104 R)
• M12: 3,901,961 km (0.054 R)
• M13: 4,196,519 km (0.109 R)
• M14: 6,599,211 km (0.053 R)
• M15: 6,923,090 km (0.118 R)
• M16: 7,958,607 km (0.089 R)
• M17: 17,528,831 km (0.103 R)
• M18: 18,149,513 km (0.086 R)
• M19: 25,520,200 km (0.095 R)
• M20: 26,663,427 km (0.056 R)
• M21: 29,298,145 km (0.066 R)
• M22: 32,101,309 km (0.117 R)
• M23: 38,529,829 km (0.058 R)
• M24: 41,573,697 km (0.109 R)
• M25: 43,154,049 km (0.081 R)
• M26: 43,635,754 km (0.08 R)
• M27: 46,770,877 km (0.078 R)
• M28: 49,349,495 km (0.109 R)
• M29: 50,052,904 km (0.119 R)
• M30: 52,021,463 km (0.103 R)
• M31: 54,600,680 km (0.1 R)
• M32: 57,457,401 km (0.104 R)
• M33: 58,040,383 km (0.086 R)
• M34: 61,621,906 km (0.077 R)
• M35: 68,347,527 km (0.033 R)
• M36: 68,783,455 km (0.067 R)
• M37: 69,002,018 km (0.088 R)

Kuiper Belt

Range: 30.5 - 54.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 19,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit