🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.5 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.39 AU - 0.61 AU

Year: 135 Days

Day: 32.8 Hours

Environment

Temp: 209 °C

Axial Tilt: 23.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 84,741,969 km

• M1: 42,785 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.8 AU - 1.18 AU

Year: 375 Days

Day: 26.3 Hours

Environment

Temp: 24 °C

Axial Tilt: 31 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.33 AU - 1.53 AU

Year: 651 Days

Day: 25.3 Hours

Environment

Temp: -39 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,741,969 km

• M1: 238,459 km (0.088 R)
• M2: 940,522 km (0.051 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.37 AU - 2.17 AU

Year: 897 Days

Day: 16.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.91 AU - 2.81 AU

Year: 1381 Days

Day: 46.9 Hours

Environment

Temp: -98 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.24 AU - 4.52 AU

Year: 2910 Days

Day: 14.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.3

Radius: 11.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.13 AU - 6.15 AU

Year: 5101 Days

Day: 13.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,741,969 km

• M1: 145,708 km (0.058 R)
• M2: 1,028,037 km (0.063 R)
• M3: 1,431,053 km (0.12 R)
• M4: 1,927,269 km (0.108 R)
• M5: 2,962,337 km (0.068 R)
• M6: 4,559,294 km (0.108 R)
• M7: 6,767,060 km (0.114 R)
• M8: 8,292,509 km (0.095 R)
• M9: 8,717,068 km (0.1 R)
• M10: 9,156,287 km (0.088 R)
• M11: 10,035,773 km (0.059 R)
• M12: 10,743,072 km (0.115 R)
• M13: 11,201,739 km (0.035 R)
• M14: 12,356,186 km (0.084 R)
• M15: 13,962,717 km (0.118 R)
• M16: 14,454,296 km (0.118 R)
• M17: 17,398,083 km (0.11 R)
• M18: 17,776,416 km (0.091 R)
• M19: 18,549,388 km (0.096 R)
• M20: 19,682,592 km (0.108 R)
• M21: 20,440,155 km (0.084 R)
• M22: 23,589,191 km (0.068 R)
• M23: 24,759,794 km (0.068 R)
• M24: 26,132,953 km (0.086 R)
• M25: 26,546,292 km (0.092 R)
• M26: 30,283,695 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.3

Radius: 11.2

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.53 AU - 7.61 AU

Year: 7931 Days

Day: 10.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,741,969 km

• M1: 139,425 km (0.097 R)
• M2: 1,049,579 km (0.071 R)
• M3: 1,447,359 km (0.099 R)
• M4: 2,464,475 km (0.086 R)
• M5: 3,164,893 km (0.067 R)
• M6: 4,470,732 km (0.061 R)
• M7: 6,374,066 km (0.064 R)
• M8: 8,004,533 km (0.094 R)
• M9: 11,210,715 km (0.112 R)
• M10: 12,071,202 km (0.101 R)
• M11: 15,187,475 km (0.106 R)
• M12: 16,872,545 km (0.076 R)
• M13: 23,826,902 km (0.086 R)
• M14: 25,477,116 km (0.109 R)
• M15: 26,017,912 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.1

Radius: 4

Gravity: 24.63 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 15.32 AU - 22.24 AU

Year: 30991 Days

Day: 23.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 142.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,741,969 km

• M1: 51,761 km (0.071 R)
• M2: 359,035 km (0.096 R)
• M3: 621,579 km (0.045 R)
• M4: 1,538,315 km (0.112 R)
• M5: 2,072,828 km (0.101 R)
• M6: 3,903,158 km (0.059 R)
• M7: 6,689,867 km (0.069 R)
• M8: 8,080,230 km (0.105 R)
• M9: 10,509,699 km (0.112 R)
• M10: 10,763,866 km (0.119 R)
• M11: 10,892,371 km (0.105 R)
• M12: 11,087,147 km (0.06 R)
• M13: 13,091,609 km (0.08 R)
• M14: 14,606,586 km (0.069 R)
• M15: 14,922,986 km (0.118 R)
• M16: 15,983,037 km (0.112 R)
• M17: 24,287,962 km (0.104 R)
• M18: 30,490,290 km (0.115 R)
• M19: 32,996,503 km (0.089 R)
• M20: 33,404,307 km (0.116 R)
• M21: 54,106,857 km (0.097 R)
• M22: 62,202,944 km (0.091 R)
• M23: 83,477,856 km (0.118 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 14,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit