🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.45 AU - 0.75 AU

Year: 200 Days

Day: 16.4 Hours

Environment

Temp: 15 °C

Axial Tilt: 5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 62,336,275 km

• M1: 608,265 km (0.04 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.61 AU - 0.91 AU

Year: 285 Days

Day: 17.5 Hours

Environment

Temp: -12 °C

Axial Tilt: 18.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.85 AU - 1.21 AU

Year: 450 Days

Day: 30.8 Hours

Environment

Temp: -52 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,336,275 km

• M1: 223,499 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.02 AU - 2.86 AU

Year: 1641 Days

Day: 32.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.79 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.7

Radius: 14.6

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.91 AU - 5.37 AU

Year: 5016 Days

Day: 9.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,336,275 km

• M1: 184,155 km (0.082 R)
• M2: 786,885 km (0.065 R)
• M3: 1,306,289 km (0.057 R)
• M4: 1,992,195 km (0.108 R)
• M5: 2,912,072 km (0.098 R)
• M6: 4,425,554 km (0.074 R)
• M7: 7,800,332 km (0.037 R)
• M8: 9,741,215 km (0.107 R)
• M9: 10,714,798 km (0.1 R)
• M10: 11,475,353 km (0.083 R)
• M11: 15,213,655 km (0.057 R)
• M12: 17,601,386 km (0.114 R)
• M13: 19,500,232 km (0.12 R)
• M14: 19,962,190 km (0.1 R)
• M15: 20,703,149 km (0.11 R)
• M16: 22,168,460 km (0.049 R)
• M17: 22,889,970 km (0.1 R)
• M18: 23,404,437 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.5

Radius: 15

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.72 AU - 11.96 AU

Year: 13287 Days

Day: 12.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,336,275 km

• M1: 186,549 km (0.092 R)
• M2: 675,434 km (0.061 R)
• M3: 1,227,002 km (0.099 R)
• M4: 1,984,416 km (0.119 R)
• M5: 2,682,739 km (0.098 R)
• M6: 4,295,254 km (0.111 R)
• M7: 5,068,825 km (0.071 R)
• M8: 7,805,867 km (0.047 R)
• M9: 8,550,266 km (0.093 R)
• M10: 9,601,640 km (0.114 R)
• M11: 10,410,665 km (0.106 R)
• M12: 11,313,788 km (0.052 R)
• M13: 13,167,605 km (0.105 R)
• M14: 14,110,370 km (0.088 R)
• M15: 18,202,022 km (0.114 R)
• M16: 19,022,865 km (0.067 R)
• M17: 19,939,900 km (0.082 R)
• M18: 20,665,151 km (0.085 R)
• M19: 24,724,040 km (0.027 R)
• M20: 32,855,881 km (0.101 R)
• M21: 34,901,482 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.7

Radius: 7.3

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 10 AU - 13.4 AU

Year: 17227 Days

Day: 17 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,336,275 km

• M1: 90,806 km (0.099 R)
• M2: 430,094 km (0.119 R)
• M3: 858,093 km (0.066 R)
• M4: 1,172,249 km (0.108 R)
• M5: 2,828,746 km (0.026 R)
• M6: 3,295,043 km (0.098 R)
• M7: 4,475,669 km (0.076 R)
• M8: 5,109,066 km (0.079 R)
• M9: 7,965,189 km (0.112 R)
• M10: 10,056,418 km (0.11 R)
• M11: 10,905,386 km (0.079 R)
• M12: 13,136,488 km (0.098 R)
• M13: 15,360,560 km (0.058 R)
• M14: 16,255,604 km (0.056 R)
• M15: 18,231,193 km (0.117 R)
• M16: 18,478,628 km (0.097 R)
• M17: 20,273,503 km (0.101 R)
• M18: 20,628,050 km (0.106 R)
• M19: 22,087,976 km (0.119 R)
• M20: 24,008,065 km (0.119 R)
• M21: 27,523,016 km (0.108 R)
• M22: 35,042,553 km (0.096 R)
• M23: 37,115,830 km (0.102 R)
• M24: 40,376,914 km (0.102 R)
• M25: 46,534,811 km (0.077 R)
• M26: 49,675,469 km (0.105 R)
• M27: 52,787,254 km (0.086 R)
• M28: 53,627,246 km (0.118 R)
• M29: 54,476,065 km (0.066 R)
• M30: 55,161,672 km (0.098 R)
• M31: 57,252,751 km (0.116 R)
• M32: 59,940,127 km (0.092 R)
• M33: 60,304,697 km (0.112 R)
• M34: 60,854,319 km (0.105 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 17,773 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit