🌌 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: 537.2

Radius: 14.3

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.45 AU - 0.75 AU

Year: 310 Days

Day: 10.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,513,852 km

• M1: 177,872 km (0.115 R)
• M2: 685,308 km (0.054 R)
• M3: 1,132,157 km (0.046 R)
• M4: 1,825,393 km (0.096 R)
• M5: 2,319,814 km (0.115 R)
• M6: 2,904,293 km (0.042 R)
• M7: 3,719,601 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.3

Radius: 13.4

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.64 AU - 0.8 AU

Year: 407 Days

Day: 14.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 32,513,852 km

• M1: 166,652 km (0.105 R)
• M2: 588,518 km (0.104 R)
• M3: 1,043,445 km (0.096 R)
• M4: 1,914,853 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.7

Radius: 13.8

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.86 AU - 0.88 AU

Year: 541 Days

Day: 9.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,513,852 km

• M1: 171,589 km (0.08 R)
• M2: 715,227 km (0.07 R)
• M3: 1,165,966 km (0.089 R)
• M4: 1,929,663 km (0.046 R)
• M5: 2,552,439 km (0.081 R)
• M6: 3,078,874 km (0.086 R)
• M7: 3,677,864 km (0.105 R)
• M8: 4,309,316 km (0.091 R)
• M9: 4,881,827 km (0.083 R)
• M10: 5,435,190 km (0.09 R)
• M11: 5,955,790 km (0.086 R)
• M12: 6,470,407 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.7

Radius: 8.3

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.95 AU - 1.25 AU

Year: 769 Days

Day: 5.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,513,852 km

• M1: 104,868 km (0.052 R)
• M2: 494,122 km (0.091 R)
• M3: 888,761 km (0.049 R)
• M4: 1,201,869 km (0.102 R)
• M5: 1,510,041 km (0.048 R)
• M6: 1,898,846 km (0.12 R)
• M7: 2,537,629 km (0.058 R)
• M8: 3,179,852 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.7

Radius: 8.8

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.06 AU - 1.2 AU

Year: 801 Days

Day: 13.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,513,852 km

• M1: 110,553 km (0.115 R)
• M2: 511,176 km (0.095 R)
• M3: 847,622 km (0.099 R)
• M4: 1,516,025 km (0.098 R)
• M5: 1,986,959 km (0.106 R)
• M6: 2,839,517 km (0.108 R)
• M7: 3,247,171 km (0.076 R)
• M8: 4,612,850 km (0.116 R)
• M9: 5,057,904 km (0.039 R)
• M10: 5,640,588 km (0.091 R)
• M11: 6,346,390 km (0.043 R)
• M12: 6,981,882 km (0.093 R)
• M13: 7,369,939 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.3

Radius: 13

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.29 AU - 1.57 AU

Year: 1140 Days

Day: 14.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,513,852 km

• M1: 161,865 km (0.084 R)
• M2: 696,228 km (0.114 R)
• M3: 1,175,241 km (0.104 R)
• M4: 1,580,502 km (0.115 R)
• M5: 1,986,809 km (0.097 R)
• M6: 2,395,361 km (0.03 R)
• M7: 3,204,386 km (0.12 R)
• M8: 5,196,282 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 11.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.79 AU - 2.13 AU

Year: 1830 Days

Day: 6.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,513,852 km

• M1: 140,024 km (0.036 R)
• M2: 587,471 km (0.099 R)
• M3: 990,637 km (0.093 R)
• M4: 1,436,738 km (0.077 R)
• M5: 1,996,533 km (0.085 R)
• M6: 2,435,902 km (0.099 R)
• M7: 3,817,738 km (0.084 R)
• M8: 4,678,973 km (0.087 R)
• M9: 5,146,316 km (0.058 R)
• M10: 7,044,863 km (0.085 R)
• M11: 7,410,031 km (0.093 R)
• M12: 7,839,078 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.1

Radius: 11.5

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.11 AU - 2.25 AU

Year: 2146 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,513,852 km

• M1: 143,016 km (0.089 R)
• M2: 551,867 km (0.091 R)
• M3: 1,283,849 km (0.083 R)
• M4: 1,792,631 km (0.087 R)
• M5: 2,191,310 km (0.071 R)
• M6: 2,620,057 km (0.04 R)
• M7: 4,360,030 km (0.074 R)
• M8: 5,114,302 km (0.092 R)
• M9: 6,627,485 km (0.068 R)
• M10: 7,173,218 km (0.106 R)
• M11: 8,095,788 km (0.064 R)
• M12: 8,519,300 km (0.091 R)
• M13: 8,923,513 km (0.109 R)
• M14: 9,697,832 km (0.041 R)
• M15: 10,670,068 km (0.056 R)
• M16: 11,996,253 km (0.081 R)
• M17: 13,027,581 km (0.067 R)
• M18: 13,747,446 km (0.111 R)
• M19: 14,636,506 km (0.054 R)
• M20: 15,365,048 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.1

Radius: 9.1

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.06 AU - 2.74 AU

Year: 2479 Days

Day: 14.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,513,852 km

• M1: 119,529 km (0.111 R)
• M2: 561,441 km (0.075 R)
• M3: 958,174 km (0.098 R)
• M4: 1,646,624 km (0.074 R)
• M5: 2,428,123 km (0.116 R)
• M6: 3,403,501 km (0.094 R)
• M7: 3,822,375 km (0.12 R)
• M8: 5,211,391 km (0.082 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.3

Radius: 11.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 5.02 AU - 6.2 AU

Year: 8861 Days

Day: 10.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,513,852 km

• M1: 148,401 km (0.087 R)
• M2: 672,143 km (0.063 R)
• M3: 1,311,076 km (0.056 R)
• M4: 1,827,637 km (0.081 R)
• M5: 2,219,434 km (0.079 R)
• M6: 2,867,642 km (0.063 R)
• M7: 3,727,381 km (0.078 R)
• M8: 4,725,198 km (0.062 R)
• M9: 6,141,890 km (0.073 R)
• M10: 6,694,355 km (0.062 R)
• M11: 7,244,426 km (0.105 R)
• M12: 13,157,432 km (0.071 R)
• M13: 13,584,983 km (0.111 R)
• M14: 15,097,417 km (0.064 R)
• M15: 15,507,315 km (0.118 R)
• M16: 19,884,699 km (0.112 R)
• M17: 25,681,018 km (0.116 R)
• M18: 26,265,796 km (0.092 R)
• M19: 27,288,746 km (0.053 R)
• M20: 30,424,317 km (0.052 R)
• M21: 31,362,595 km (0.043 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 14,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit