🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.64 AU - 0.68 AU

Year: 191 Days

Day: 14 Hours

Environment

Temp: 188 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 96,172,750 km

• M1: 214,374 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.86 AU - 1.22 AU

Year: 378 Days

Day: 31.2 Hours

Environment

Temp: 44 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.18 AU - 2.64 AU

Year: 1334 Days

Day: 45.3 Hours

Environment

Temp: -79 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 96,172,750 km

• M1: 132,544 km (0.085 R)
• M2: 532,120 km (0.082 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.04 AU - 5.62 AU

Year: 3784 Days

Day: 24.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.79 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.8

Radius: 8.8

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.7 AU - 6.8 AU

Year: 6251 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 96,172,750 km

• M1: 109,506 km (0.03 R)
• M2: 392,844 km (0.1 R)
• M3: 956,978 km (0.076 R)
• M4: 1,625,231 km (0.088 R)
• M5: 2,143,289 km (0.067 R)
• M6: 3,103,707 km (0.085 R)
• M7: 3,746,230 km (0.115 R)
• M8: 6,025,952 km (0.109 R)
• M9: 7,652,679 km (0.08 R)
• M10: 8,356,088 km (0.071 R)
• M11: 8,861,579 km (0.103 R)
• M12: 9,848,327 km (0.044 R)
• M13: 12,483,344 km (0.09 R)
• M14: 19,431,866 km (0.114 R)
• M15: 24,063,117 km (0.114 R)
• M16: 24,374,879 km (0.082 R)
• M17: 26,799,711 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.1

Radius: 9.1

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.12 AU - 10.38 AU

Year: 10852 Days

Day: 13.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 96,172,750 km

• M1: 113,246 km (0.05 R)
• M2: 834,008 km (0.099 R)
• M3: 1,546,244 km (0.105 R)
• M4: 2,019,272 km (0.061 R)
• M5: 2,305,453 km (0.109 R)
• M6: 4,400,721 km (0.091 R)
• M7: 5,710,151 km (0.035 R)
• M8: 8,699,565 km (0.078 R)
• M9: 10,110,572 km (0.103 R)
• M10: 10,870,679 km (0.12 R)
• M11: 13,280,701 km (0.07 R)
• M12: 14,243,812 km (0.07 R)
• M13: 14,610,177 km (0.106 R)
• M14: 20,028,313 km (0.114 R)
• M15: 21,293,312 km (0.105 R)
• M16: 22,966,564 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.1

Radius: 7.2

Gravity: 14.72 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 16.82 AU - 18.92 AU

Year: 26927 Days

Day: 24 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 96,172,750 km

• M1: 90,656 km (0.089 R)
• M2: 347,516 km (0.03 R)
• M3: 631,453 km (0.076 R)
• M4: 893,249 km (0.106 R)
• M5: 1,169,407 km (0.092 R)
• M6: 1,645,577 km (0.041 R)
• M7: 1,897,948 km (0.056 R)
• M8: 2,198,790 km (0.061 R)
• M9: 2,709,816 km (0.075 R)
• M10: 3,121,360 km (0.07 R)
• M11: 4,800,296 km (0.057 R)
• M12: 5,572,670 km (0.093 R)
• M13: 12,317,440 km (0.094 R)
• M14: 13,290,275 km (0.109 R)
• M15: 14,556,621 km (0.078 R)
• M16: 17,977,326 km (0.087 R)
• M17: 24,114,878 km (0.092 R)
• M18: 24,575,340 km (0.069 R)
• M19: 25,992,181 km (0.066 R)
• M20: 27,838,817 km (0.116 R)
• M21: 28,601,318 km (0.033 R)
• M22: 35,063,347 km (0.066 R)
• M23: 35,952,407 km (0.101 R)
• M24: 36,553,492 km (0.109 R)
• M25: 37,161,158 km (0.052 R)
• M26: 39,659,592 km (0.067 R)
• M27: 51,912,256 km (0.038 R)
• M28: 57,446,181 km (0.092 R)
• M29: 71,308,069 km (0.103 R)
• M30: 73,454,050 km (0.111 R)
• M31: 73,936,653 km (0.104 R)
• M32: 78,880,264 km (0.118 R)
• M33: 80,149,752 km (0.087 R)

Kuiper Belt

Range: 30.8 - 51.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 11,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit