🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.8

Radius: 13.2

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.42 AU - 0.66 AU

Year: 274 Days

Day: 9.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 153.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,275,718 km

• M1: 164,258 km (0.068 R)
• M2: 627,713 km (0.109 R)
• M3: 1,065,137 km (0.108 R)
• M4: 1,545,196 km (0.106 R)
• M5: 1,981,125 km (0.049 R)
• M6: 2,444,429 km (0.11 R)
• M7: 2,953,212 km (0.063 R)
• M8: 3,400,808 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.3

Radius: 14.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.73 AU - 1.15 AU

Year: 629 Days

Day: 10.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,275,718 km

• M1: 185,501 km (0.087 R)
• M2: 671,246 km (0.056 R)
• M3: 1,176,886 km (0.073 R)
• M4: 1,931,458 km (0.112 R)
• M5: 2,787,008 km (0.114 R)
• M6: 3,674,273 km (0.104 R)
• M7: 4,759,606 km (0.119 R)
• M8: 5,431,899 km (0.1 R)
• M9: 6,755,840 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.5

Radius: 8.6

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.36 AU - 1.44 AU

Year: 1143 Days

Day: 7.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,275,718 km

• M1: 106,962 km (0.037 R)
• M2: 453,730 km (0.093 R)
• M3: 1,361,191 km (0.07 R)
• M4: 2,088,087 km (0.072 R)
• M5: 3,230,716 km (0.086 R)
• M6: 3,753,859 km (0.103 R)
• M7: 4,244,241 km (0.079 R)
• M8: 5,034,417 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.6

Radius: 11.3

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.39 AU - 1.63 AU

Year: 1281 Days

Day: 8.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,275,718 km

• M1: 140,622 km (0.106 R)
• M2: 638,633 km (0.085 R)
• M3: 1,016,368 km (0.101 R)
• M4: 1,463,366 km (0.11 R)
• M5: 1,957,339 km (0.119 R)
• M6: 2,331,483 km (0.051 R)
• M7: 2,846,698 km (0.034 R)
• M8: 4,021,490 km (0.05 R)
• M9: 4,690,043 km (0.112 R)
• M10: 5,081,540 km (0.106 R)
• M11: 5,601,543 km (0.053 R)
• M12: 6,225,964 km (0.111 R)
• M13: 6,945,979 km (0.058 R)
• M14: 7,508,467 km (0.056 R)
• M15: 8,046,121 km (0.059 R)
• M16: 9,626,773 km (0.103 R)
• M17: 10,068,535 km (0.081 R)
• M18: 11,094,776 km (0.055 R)
• M19: 11,650,981 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.6

Radius: 12.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.53 AU - 1.55 AU

Year: 1319 Days

Day: 11.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,275,718 km

• M1: 154,086 km (0.085 R)
• M2: 539,001 km (0.103 R)
• M3: 1,265,897 km (0.116 R)
• M4: 1,644,529 km (0.072 R)
• M5: 2,299,319 km (0.084 R)
• M6: 2,976,549 km (0.112 R)
• M7: 3,499,244 km (0.084 R)
• M8: 3,923,055 km (0.112 R)
• M9: 5,004,198 km (0.088 R)
• M10: 5,808,287 km (0.11 R)
• M11: 7,161,848 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.5

Radius: 9.8

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.23 AU - 2.27 AU

Year: 2330 Days

Day: 6.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,275,718 km

• M1: 121,922 km (0.062 R)
• M2: 430,692 km (0.085 R)
• M3: 748,588 km (0.066 R)
• M4: 1,057,358 km (0.097 R)
• M5: 1,542,803 km (0.047 R)
• M6: 2,231,103 km (0.101 R)
• M7: 2,619,309 km (0.034 R)
• M8: 3,217,551 km (0.068 R)
• M9: 3,565,964 km (0.059 R)
• M10: 4,320,387 km (0.11 R)
• M11: 4,866,568 km (0.097 R)
• M12: 5,502,060 km (0.072 R)
• M13: 6,459,187 km (0.04 R)
• M14: 6,810,144 km (0.088 R)
• M15: 7,578,179 km (0.114 R)
• M16: 8,640,474 km (0.116 R)
• M17: 9,831,871 km (0.029 R)
• M18: 12,005,828 km (0.081 R)
• M19: 12,615,140 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.3

Radius: 10.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.87 AU - 3.63 AU

Year: 4044 Days

Day: 12.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,275,718 km

• M1: 135,536 km (0.103 R)
• M2: 659,427 km (0.081 R)
• M3: 1,392,756 km (0.096 R)
• M4: 1,771,837 km (0.114 R)
• M5: 2,259,975 km (0.086 R)
• M6: 6,148,921 km (0.113 R)
• M7: 7,157,061 km (0.077 R)
• M8: 10,765,661 km (0.115 R)
• M9: 11,684,342 km (0.097 R)
• M10: 12,226,185 km (0.112 R)
• M11: 14,185,768 km (0.08 R)
• M12: 15,887,593 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.8

Radius: 5.1

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.13 AU - 11.47 AU

Year: 19577 Days

Day: 18.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,275,718 km

• M1: 70,610 km (0.11 R)
• M2: 371,003 km (0.071 R)
• M3: 709,842 km (0.094 R)
• M4: 1,345,932 km (0.098 R)
• M5: 2,386,086 km (0.106 R)
• M6: 2,854,178 km (0.08 R)
• M7: 3,828,958 km (0.069 R)
• M8: 5,528,988 km (0.119 R)
• M9: 7,940,655 km (0.087 R)
• M10: 11,553,144 km (0.064 R)
• M11: 13,796,514 km (0.056 R)
• M12: 20,894,933 km (0.091 R)
• M13: 26,950,655 km (0.046 R)
• M14: 27,648,978 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 12,385 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit