🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.4

Radius: 13.3

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.49 AU - 0.55 AU

Year: 259 Days

Day: 5.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 25,147,425 km

• M1: 165,605 km (0.103 R)
• M2: 714,031 km (0.055 R)
• M3: 1,436,439 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.5

Radius: 12

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.52 AU - 0.64 AU

Year: 305 Days

Day: 12.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,147,425 km

• M1: 149,897 km (0.112 R)
• M2: 611,706 km (0.068 R)
• M3: 986,897 km (0.041 R)
• M4: 1,443,619 km (0.116 R)
• M5: 1,896,452 km (0.111 R)
• M6: 2,295,729 km (0.08 R)
• M7: 2,950,818 km (0.051 R)
• M8: 3,412,627 km (0.072 R)
• M9: 3,787,519 km (0.094 R)
• M10: 4,497,062 km (0.038 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347

Radius: 12.8

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.67 AU - 0.77 AU

Year: 422 Days

Day: 10.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,147,425 km

• M1: 159,322 km (0.062 R)
• M2: 784,042 km (0.091 R)
• M3: 1,209,200 km (0.09 R)
• M4: 1,891,067 km (0.027 R)
• M5: 2,456,547 km (0.073 R)
• M6: 3,226,228 km (0.051 R)
• M7: 3,836,587 km (0.114 R)
• M8: 4,431,239 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.6

Radius: 14.3

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.57 AU - 0.95 AU

Year: 457 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,147,425 km

• M1: 177,872 km (0.117 R)
• M2: 680,670 km (0.094 R)
• M3: 1,127,519 km (0.103 R)
• M4: 1,606,532 km (0.077 R)
• M5: 2,095,268 km (0.117 R)
• M6: 2,693,809 km (0.09 R)
• M7: 3,427,886 km (0.078 R)
• M8: 4,085,518 km (0.097 R)
• M9: 4,629,755 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.1

Radius: 12.9

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.92 AU - 0.96 AU

Year: 629 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,147,425 km

• M1: 160,818 km (0.111 R)
• M2: 703,260 km (0.098 R)
• M3: 1,265,000 km (0.104 R)
• M4: 1,876,406 km (0.109 R)
• M5: 3,750,568 km (0.041 R)
• M6: 4,161,065 km (0.075 R)
• M7: 4,687,649 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.8

Radius: 14.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.92 AU - 2.26 AU

Year: 2086 Days

Day: 7.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,147,425 km

• M1: 185,352 km (0.052 R)
• M2: 794,215 km (0.111 R)
• M3: 1,376,300 km (0.052 R)
• M4: 2,051,136 km (0.117 R)
• M5: 2,899,356 km (0.097 R)
• M6: 3,421,752 km (0.108 R)
• M7: 4,149,995 km (0.089 R)
• M8: 4,837,546 km (0.087 R)
• M9: 5,424,120 km (0.101 R)
• M10: 6,011,142 km (0.115 R)
• M11: 6,690,615 km (0.062 R)
• M12: 7,722,242 km (0.12 R)
• M13: 8,349,506 km (0.086 R)
• M14: 8,949,094 km (0.071 R)
• M15: 10,101,147 km (0.099 R)
• M16: 10,574,924 km (0.105 R)
• M17: 12,699,064 km (0.066 R)
• M18: 13,944,616 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.1

Radius: 13.1

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.93 AU - 3.13 AU

Year: 2778 Days

Day: 6.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,147,425 km

• M1: 171,888 km (0.065 R)
• M2: 603,627 km (0.117 R)
• M3: 3,562,524 km (0.074 R)
• M4: 4,048,268 km (0.061 R)
• M5: 5,085,729 km (0.088 R)
• M6: 6,266,655 km (0.065 R)
• M7: 7,443,092 km (0.089 R)
• M8: 9,200,269 km (0.108 R)
• M9: 11,940,453 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.2

Radius: 8.5

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.98 AU - 4.08 AU

Year: 5584 Days

Day: 7.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,147,425 km

• M1: 119,977 km (0.1 R)
• M2: 398,678 km (0.115 R)
• M3: 685,457 km (0.105 R)
• M4: 1,343,538 km (0.098 R)
• M5: 1,708,408 km (0.105 R)
• M6: 2,166,925 km (0.098 R)
• M7: 2,823,510 km (0.119 R)
• M8: 6,731,904 km (0.042 R)
• M9: 8,843,179 km (0.077 R)
• M10: 10,377,155 km (0.112 R)
• M11: 13,463,210 km (0.068 R)
• M12: 16,313,049 km (0.105 R)
• M13: 16,595,789 km (0.107 R)
• M14: 19,101,105 km (0.12 R)
• M15: 22,539,163 km (0.04 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 10,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit