🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.3

Radius: 11

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.49 AU - 0.71 AU

Year: 321 Days

Day: 13.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 9,622,349 km

• M1: 137,929 km (0.047 R)
• M2: 507,436 km (0.116 R)
• M3: 1,028,485 km (0.063 R)
• M4: 1,427,912 km (0.068 R)
• M5: 1,807,591 km (0.114 R)
• M6: 2,452,807 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719

Radius: 14.4

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.58 AU - 0.64 AU

Year: 329 Days

Day: 14.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 9,622,349 km

• M1: 179,218 km (0.114 R)
• M2: 648,357 km (0.06 R)
• M3: 1,119,740 km (0.091 R)
• M4: 1,655,151 km (0.098 R)
• M5: 2,975,801 km (0.104 R)
• M6: 3,800,085 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.5

Radius: 12.5

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.5 AU - 0.8 AU

Year: 362 Days

Day: 12 Hours

Environment

Temp: -147 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,622,349 km

• M1: 155,432 km (0.094 R)
• M2: 656,136 km (0.099 R)
• M3: 1,084,285 km (0.119 R)
• M4: 1,533,079 km (0.101 R)
• M5: 2,008,501 km (0.025 R)
• M6: 2,997,493 km (0.114 R)
• M7: 3,546,218 km (0.028 R)
• M8: 3,988,878 km (0.066 R)
• M9: 4,521,296 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.2

Radius: 14.4

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.06 AU - 1.24 AU

Year: 851 Days

Day: 6.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,622,349 km

• M1: 179,069 km (0.053 R)
• M2: 671,395 km (0.06 R)
• M3: 1,223,860 km (0.071 R)
• M4: 2,121,747 km (0.048 R)
• M5: 4,148,199 km (0.063 R)
• M6: 5,213,785 km (0.118 R)
• M7: 6,151,913 km (0.098 R)
• M8: 6,873,723 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658

Radius: 10.2

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.94 AU - 1.5 AU

Year: 930 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,622,349 km

• M1: 126,859 km (0.098 R)
• M2: 726,447 km (0.108 R)
• M3: 1,213,239 km (0.111 R)
• M4: 1,836,763 km (0.088 R)
• M5: 2,377,559 km (0.102 R)
• M6: 2,770,553 km (0.068 R)
• M7: 3,100,117 km (0.097 R)
• M8: 3,456,010 km (0.106 R)
• M9: 3,808,762 km (0.065 R)
• M10: 4,587,269 km (0.078 R)
• M11: 4,978,019 km (0.082 R)
• M12: 6,568,244 km (0.116 R)
• M13: 7,300,226 km (0.109 R)
• M14: 7,984,487 km (0.105 R)
• M15: 9,145,666 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.2

Radius: 15

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.03 AU - 1.47 AU

Year: 965 Days

Day: 6.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,622,349 km

• M1: 191,784 km (0.088 R)
• M2: 667,356 km (0.087 R)
• M3: 1,142,928 km (0.109 R)
• M4: 1,733,989 km (0.048 R)
• M5: 2,201,183 km (0.057 R)
• M6: 2,741,979 km (0.073 R)
• M7: 3,399,911 km (0.09 R)
• M8: 4,327,717 km (0.094 R)
• M9: 4,797,753 km (0.111 R)
• M10: 7,222,436 km (0.114 R)
• M11: 8,486,538 km (0.063 R)
• M12: 9,313,215 km (0.109 R)
• M13: 10,102,643 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.6

Radius: 12.8

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.3 AU - 2.14 AU

Year: 1557 Days

Day: 14.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,622,349 km

• M1: 159,172 km (0.069 R)
• M2: 719,566 km (0.076 R)
• M3: 1,262,756 km (0.088 R)
• M4: 1,668,016 km (0.12 R)
• M5: 2,445,028 km (0.057 R)
• M6: 3,391,533 km (0.077 R)
• M7: 3,826,714 km (0.104 R)
• M8: 5,161,276 km (0.097 R)
• M9: 5,718,827 km (0.108 R)
• M10: 7,202,838 km (0.086 R)
• M11: 7,820,827 km (0.12 R)
• M12: 8,446,146 km (0.069 R)
• M13: 9,461,617 km (0.115 R)
• M14: 10,818,768 km (0.114 R)
• M15: 11,839,774 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137

Radius: 12.8

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.81 AU - 2.27 AU

Year: 2011 Days

Day: 5.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,622,349 km

• M1: 181,911 km (0.099 R)
• M2: 642,373 km (0.112 R)
• M3: 1,674,299 km (0.1 R)
• M4: 2,265,211 km (0.082 R)
• M5: 2,722,232 km (0.088 R)
• M6: 5,188,353 km (0.105 R)
• M7: 6,696,449 km (0.071 R)
• M8: 7,384,749 km (0.069 R)
• M9: 8,849,462 km (0.115 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 19,143 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit