🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.3

Radius: 8.6

Gravity: 13.38 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.02 AU - 1.18 AU

Year: 745 Days

Day: 10.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,502,955 km

• M1: 111,600 km (0.072 R)
• M2: 423,661 km (0.066 R)
• M3: 770,279 km (0.113 R)
• M4: 1,091,765 km (0.104 R)
• M5: 1,567,636 km (0.072 R)
• M6: 1,882,091 km (0.094 R)
• M7: 2,501,426 km (0.086 R)
• M8: 3,128,989 km (0.089 R)
• M9: 3,516,148 km (0.086 R)
• M10: 4,270,720 km (0.089 R)
• M11: 4,872,851 km (0.059 R)
• M12: 5,589,425 km (0.061 R)
• M13: 6,374,515 km (0.053 R)
• M14: 7,114,276 km (0.073 R)
• M15: 7,934,970 km (0.088 R)
• M16: 8,342,475 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.6

Radius: 12.8

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.91 AU - 1.31 AU

Year: 755 Days

Day: 8.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,502,955 km

• M1: 159,172 km (0.077 R)
• M2: 714,180 km (0.115 R)
• M3: 1,255,725 km (0.113 R)
• M4: 1,666,819 km (0.081 R)
• M5: 2,169,468 km (0.039 R)
• M6: 2,577,721 km (0.106 R)
• M7: 3,014,098 km (0.094 R)
• M8: 3,895,229 km (0.09 R)
• M9: 4,505,140 km (0.075 R)
• M10: 5,160,977 km (0.116 R)
• M11: 6,582,456 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.8

Radius: 14.6

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.63 AU - 2.37 AU

Year: 1826 Days

Day: 10.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,502,955 km

• M1: 181,612 km (0.101 R)
• M2: 663,766 km (0.05 R)
• M3: 1,500,915 km (0.108 R)
• M4: 1,962,425 km (0.052 R)
• M5: 2,453,405 km (0.087 R)
• M6: 3,690,729 km (0.084 R)
• M7: 4,309,765 km (0.079 R)
• M8: 5,041,598 km (0.113 R)
• M9: 5,928,863 km (0.109 R)
• M10: 6,620,903 km (0.085 R)
• M11: 7,954,268 km (0.043 R)
• M12: 8,733,075 km (0.077 R)
• M13: 9,257,864 km (0.101 R)
• M14: 9,803,597 km (0.1 R)
• M15: 11,110,634 km (0.079 R)
• M16: 11,571,395 km (0.08 R)
• M17: 13,936,837 km (0.049 R)
• M18: 14,427,967 km (0.067 R)
• M19: 15,635,221 km (0.085 R)
• M20: 16,411,036 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.1

Radius: 13.7

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.65 AU - 2.55 AU

Year: 1965 Days

Day: 10.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,502,955 km

• M1: 170,392 km (0.027 R)
• M2: 789,727 km (0.11 R)
• M3: 1,419,684 km (0.081 R)
• M4: 1,885,382 km (0.112 R)
• M5: 2,427,824 km (0.093 R)
• M6: 3,121,210 km (0.075 R)
• M7: 4,756,763 km (0.117 R)
• M8: 5,420,529 km (0.104 R)
• M9: 6,852,330 km (0.062 R)
• M10: 7,968,630 km (0.108 R)
• M11: 10,200,331 km (0.086 R)
• M12: 11,307,056 km (0.115 R)
• M13: 11,810,901 km (0.104 R)
• M14: 14,110,520 km (0.119 R)
• M15: 15,720,941 km (0.089 R)
• M16: 16,202,945 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.5

Radius: 13.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.93 AU - 2.85 AU

Year: 2386 Days

Day: 14.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,502,955 km

• M1: 171,738 km (0.088 R)
• M2: 601,832 km (0.051 R)
• M3: 1,166,714 km (0.077 R)
• M4: 1,698,684 km (0.096 R)
• M5: 2,463,279 km (0.038 R)
• M6: 2,934,512 km (0.087 R)
• M7: 3,394,226 km (0.116 R)
• M8: 3,862,767 km (0.092 R)
• M9: 4,978,617 km (0.08 R)
• M10: 7,221,388 km (0.113 R)
• M11: 7,842,070 km (0.116 R)
• M12: 9,883,483 km (0.103 R)
• M13: 11,958,106 km (0.099 R)
• M14: 12,918,075 km (0.076 R)
• M15: 13,371,207 km (0.048 R)
• M16: 14,843,550 km (0.034 R)
• M17: 16,316,490 km (0.11 R)
• M18: 17,552,318 km (0.083 R)
• M19: 19,610,785 km (0.043 R)
• M20: 20,392,284 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.9

Radius: 9.4

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.33 AU - 3.71 AU

Year: 3389 Days

Day: 5.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,502,955 km

• M1: 116,986 km (0.087 R)
• M2: 535,261 km (0.061 R)
• M3: 1,004,849 km (0.114 R)
• M4: 2,254,739 km (0.095 R)
• M5: 3,239,841 km (0.031 R)
• M6: 4,673,886 km (0.083 R)
• M7: 7,573,542 km (0.104 R)
• M8: 8,808,173 km (0.119 R)
• M9: 10,372,219 km (0.082 R)
• M10: 10,780,322 km (0.047 R)
• M11: 11,847,254 km (0.11 R)
• M12: 12,338,533 km (0.118 R)
• M13: 13,218,767 km (0.116 R)
• M14: 21,629,309 km (0.046 R)
• M15: 22,430,854 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.9

Radius: 7.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.74 AU - 7.78 AU

Year: 12630 Days

Day: 15.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,502,955 km

• M1: 96,491 km (0.096 R)
• M2: 548,276 km (0.115 R)
• M3: 1,251,835 km (0.073 R)
• M4: 2,337,018 km (0.066 R)
• M5: 2,695,454 km (0.114 R)
• M6: 3,374,030 km (0.113 R)
• M7: 3,653,330 km (0.03 R)
• M8: 3,924,850 km (0.113 R)
• M9: 4,382,470 km (0.068 R)
• M10: 6,842,906 km (0.096 R)
• M11: 8,599,334 km (0.069 R)
• M12: 11,239,587 km (0.113 R)
• M13: 14,940,938 km (0.088 R)
• M14: 17,158,726 km (0.11 R)
• M15: 27,536,480 km (0.071 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 17,655 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit