🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.5

Radius: 8.3

Gravity: 10.34 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.52 AU - 0.58 AU

Year: 287 Days

Day: 7.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,959,417 km

• M1: 103,522 km (0.064 R)
• M2: 398,529 km (0.114 R)
• M3: 780,302 km (0.097 R)
• M4: 1,147,565 km (0.109 R)
• M5: 1,422,676 km (0.098 R)
• M6: 1,811,630 km (0.065 R)
• M7: 2,125,187 km (0.1 R)
• M8: 2,691,714 km (0.068 R)
• M9: 3,819,832 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.5

Radius: 12.1

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.49 AU - 0.69 AU

Year: 319 Days

Day: 10.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,959,417 km

• M1: 150,495 km (0.076 R)
• M2: 532,120 km (0.049 R)
• M3: 927,208 km (0.12 R)
• M4: 1,339,649 km (0.106 R)
• M5: 1,745,957 km (0.107 R)
• M6: 2,321,609 km (0.101 R)
• M7: 2,708,320 km (0.094 R)
• M8: 3,192,568 km (0.11 R)
• M9: 3,746,529 km (0.077 R)
• M10: 4,216,715 km (0.05 R)
• M11: 4,598,489 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 10.4

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.59 AU - 0.95 AU

Year: 475 Days

Day: 13.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,959,417 km

• M1: 129,402 km (0.109 R)
• M2: 527,482 km (0.096 R)
• M3: 871,408 km (0.044 R)
• M4: 1,233,734 km (0.046 R)
• M5: 1,602,044 km (0.063 R)
• M6: 1,940,584 km (0.048 R)
• M7: 2,305,902 km (0.097 R)
• M8: 2,693,210 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.9

Radius: 11.4

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.9 AU - 1.44 AU

Year: 890 Days

Day: 11.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,959,417 km

• M1: 142,118 km (0.114 R)
• M2: 883,076 km (0.053 R)
• M3: 1,259,614 km (0.096 R)
• M4: 1,814,024 km (0.041 R)
• M5: 2,304,406 km (0.046 R)
• M6: 2,706,225 km (0.051 R)
• M7: 3,129,438 km (0.111 R)
• M8: 3,499,693 km (0.068 R)
• M9: 4,377,533 km (0.093 R)
• M10: 5,087,824 km (0.069 R)
• M11: 5,641,037 km (0.067 R)
• M12: 6,482,525 km (0.036 R)
• M13: 7,111,135 km (0.094 R)
• M14: 8,290,116 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.1

Radius: 13.6

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.23 AU - 1.65 AU

Year: 1215 Days

Day: 12.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,959,417 km

• M1: 170,242 km (0.078 R)
• M2: 663,167 km (0.115 R)
• M3: 1,390,662 km (0.078 R)
• M4: 2,092,425 km (0.096 R)
• M5: 3,050,301 km (0.086 R)
• M6: 3,744,734 km (0.118 R)
• M7: 4,282,837 km (0.094 R)
• M8: 5,323,291 km (0.067 R)
• M9: 6,191,856 km (0.115 R)
• M10: 7,682,898 km (0.109 R)
• M11: 8,154,131 km (0.109 R)
• M12: 8,762,994 km (0.067 R)
• M13: 9,277,910 km (0.039 R)
• M14: 9,845,036 km (0.101 R)
• M15: 10,335,268 km (0.086 R)
• M16: 10,841,806 km (0.039 R)
• M17: 12,997,213 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.8

Radius: 8.4

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.86 AU - 1.92 AU

Year: 1826 Days

Day: 6.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,959,417 km

• M1: 104,419 km (0.117 R)
• M2: 392,694 km (0.106 R)
• M3: 811,868 km (0.1 R)
• M4: 1,202,617 km (0.078 R)
• M5: 2,876,917 km (0.05 R)
• M6: 4,526,084 km (0.061 R)
• M7: 4,812,264 km (0.078 R)
• M8: 8,155,627 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.7

Radius: 11.7

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.73 AU - 3.77 AU

Year: 4118 Days

Day: 7.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 170.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,959,417 km

• M1: 145,708 km (0.104 R)
• M2: 509,680 km (0.071 R)
• M3: 1,024,297 km (0.076 R)
• M4: 2,164,681 km (0.044 R)
• M5: 2,956,503 km (0.054 R)
• M6: 3,382,857 km (0.062 R)
• M7: 5,135,844 km (0.111 R)
• M8: 5,596,157 km (0.12 R)
• M9: 6,748,510 km (0.071 R)
• M10: 7,429,030 km (0.081 R)
• M11: 9,632,607 km (0.09 R)
• M12: 10,335,118 km (0.077 R)
• M13: 14,172,453 km (0.114 R)
• M14: 17,868,418 km (0.11 R)
• M15: 18,809,239 km (0.06 R)
• M16: 19,906,839 km (0.118 R)
• M17: 20,471,421 km (0.119 R)
• M18: 20,982,298 km (0.064 R)
• M19: 21,501,552 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.3

Radius: 12.7

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.41 AU - 3.53 AU

Year: 4544 Days

Day: 5.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,959,417 km

• M1: 158,574 km (0.042 R)
• M2: 875,896 km (0.062 R)
• M3: 1,481,019 km (0.039 R)
• M4: 3,871,593 km (0.065 R)
• M5: 4,800,147 km (0.117 R)
• M6: 5,901,187 km (0.117 R)
• M7: 6,324,250 km (0.087 R)
• M8: 8,076,789 km (0.09 R)
• M9: 8,485,640 km (0.117 R)
• M10: 8,908,404 km (0.04 R)
• M11: 11,795,343 km (0.078 R)
• M12: 12,371,594 km (0.112 R)
• M13: 13,894,501 km (0.117 R)
• M14: 15,256,290 km (0.067 R)
• M15: 18,244,059 km (0.051 R)
• M16: 18,820,609 km (0.096 R)
• M17: 20,145,148 km (0.041 R)
• M18: 22,538,415 km (0.089 R)
• M19: 24,880,519 km (0.049 R)
• M20: 25,431,040 km (0.105 R)
• M21: 26,556,614 km (0.064 R)
• M22: 27,967,472 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 14.4

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3 AU - 5 AU

Year: 5623 Days

Day: 14.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,959,417 km

• M1: 179,218 km (0.066 R)
• M2: 659,876 km (0.103 R)
• M3: 1,118,094 km (0.12 R)
• M4: 2,355,269 km (0.092 R)
• M5: 2,983,131 km (0.114 R)
• M6: 3,542,478 km (0.083 R)
• M7: 6,418,945 km (0.119 R)
• M8: 7,177,855 km (0.098 R)
• M9: 9,042,443 km (0.093 R)
• M10: 9,908,017 km (0.109 R)
• M11: 12,006,725 km (0.114 R)
• M12: 15,567,603 km (0.065 R)
• M13: 18,255,129 km (0.071 R)
• M14: 19,851,189 km (0.066 R)
• M15: 21,163,910 km (0.111 R)
• M16: 31,531,042 km (0.107 R)
• M17: 34,855,107 km (0.057 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 15,441 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit