🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30

Radius: 13.1

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.62 AU - 0.86 AU

Year: 424 Days

Day: 9.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 41,228,735 km

• M1: 163,510 km (0.114 R)
• M2: 582,085 km (0.099 R)
• M3: 993,928 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.1

Radius: 10.6

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.82 AU - 3.7 AU

Year: 3925 Days

Day: 9.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,228,735 km

• M1: 132,394 km (0.065 R)
• M2: 913,893 km (0.12 R)
• M3: 1,579,604 km (0.052 R)
• M4: 3,396,470 km (0.084 R)
• M5: 4,465,945 km (0.095 R)
• M6: 5,048,180 km (0.073 R)
• M7: 5,636,698 km (0.088 R)
• M8: 7,519,687 km (0.104 R)
• M9: 12,557,245 km (0.118 R)

Asteroid Belt

Center: 3.67 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.4

Radius: 10.6

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.51 AU - 4.65 AU

Year: 5496 Days

Day: 5.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,228,735 km

• M1: 137,032 km (0.092 R)
• M2: 605,722 km (0.111 R)
• M3: 948,899 km (0.104 R)
• M4: 1,362,238 km (0.112 R)
• M5: 2,107,684 km (0.116 R)
• M6: 2,649,677 km (0.073 R)
• M7: 3,262,730 km (0.06 R)
• M8: 5,593,764 km (0.032 R)
• M9: 6,539,521 km (0.085 R)
• M10: 7,731,816 km (0.114 R)
• M11: 9,595,058 km (0.078 R)
• M12: 13,181,816 km (0.06 R)
• M13: 17,018,403 km (0.039 R)
• M14: 18,018,764 km (0.04 R)
• M15: 24,233,658 km (0.093 R)
• M16: 25,099,082 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.3

Radius: 13.9

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.83 AU - 4.43 AU

Year: 5597 Days

Day: 15 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,228,735 km

• M1: 172,935 km (0.07 R)
• M2: 614,249 km (0.077 R)
• M3: 1,644,529 km (0.085 R)
• M4: 2,157,500 km (0.06 R)
• M5: 2,708,918 km (0.086 R)
• M6: 4,215,518 km (0.091 R)
• M7: 4,825,878 km (0.107 R)
• M8: 6,471,903 km (0.112 R)
• M9: 7,596,580 km (0.057 R)
• M10: 8,316,894 km (0.111 R)
• M11: 10,104,588 km (0.088 R)
• M12: 10,621,898 km (0.105 R)
• M13: 11,202,337 km (0.045 R)
• M14: 11,993,261 km (0.03 R)
• M15: 13,479,367 km (0.114 R)
• M16: 18,102,988 km (0.101 R)
• M17: 18,610,424 km (0.065 R)
• M18: 20,598,430 km (0.112 R)
• M19: 23,389,777 km (0.118 R)
• M20: 25,385,412 km (0.113 R)
• M21: 27,326,145 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60

Radius: 11.9

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.97 AU - 4.53 AU

Year: 5843 Days

Day: 12.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,228,735 km

• M1: 148,102 km (0.064 R)
• M2: 784,940 km (0.108 R)
• M3: 1,648,120 km (0.08 R)
• M4: 5,028,882 km (0.107 R)
• M5: 5,442,071 km (0.108 R)
• M6: 8,269,321 km (0.03 R)
• M7: 10,288,743 km (0.088 R)
• M8: 12,499,500 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.1

Radius: 13

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.09 AU - 5.09 AU

Year: 6558 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,228,735 km

• M1: 161,715 km (0.113 R)
• M2: 1,026,391 km (0.107 R)
• M3: 1,993,541 km (0.049 R)
• M4: 3,290,106 km (0.107 R)
• M5: 4,278,798 km (0.073 R)
• M6: 5,032,622 km (0.069 R)
• M7: 5,996,481 km (0.051 R)
• M8: 6,671,616 km (0.082 R)
• M9: 9,761,411 km (0.068 R)
• M10: 11,353,431 km (0.105 R)
• M11: 11,887,795 km (0.045 R)
• M12: 13,377,640 km (0.07 R)
• M13: 14,362,892 km (0.112 R)
• M14: 23,199,339 km (0.067 R)
• M15: 26,520,561 km (0.118 R)
• M16: 28,962,896 km (0.104 R)
• M17: 31,078,509 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.6

Radius: 12.2

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.11 AU - 5.29 AU

Year: 6795 Days

Day: 11.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,228,735 km

• M1: 151,692 km (0.108 R)
• M2: 572,212 km (0.12 R)
• M3: 979,268 km (0.101 R)
• M4: 1,401,433 km (0.103 R)
• M5: 2,493,348 km (0.044 R)
• M6: 3,061,221 km (0.102 R)
• M7: 3,827,761 km (0.118 R)
• M8: 4,639,329 km (0.103 R)
• M9: 6,909,327 km (0.12 R)
• M10: 8,463,350 km (0.064 R)
• M11: 10,695,949 km (0.1 R)
• M12: 11,214,455 km (0.077 R)
• M13: 11,749,716 km (0.119 R)
• M14: 13,621,335 km (0.039 R)
• M15: 15,986,627 km (0.096 R)
• M16: 17,751,583 km (0.096 R)
• M17: 21,889,759 km (0.115 R)
• M18: 22,496,378 km (0.118 R)
• M19: 25,866,968 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 13.8

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.19 AU - 5.35 AU

Year: 8068 Days

Day: 12.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,228,735 km

• M1: 171,738 km (0.032 R)
• M2: 746,194 km (0.108 R)
• M3: 1,812,827 km (0.12 R)
• M4: 4,149,247 km (0.117 R)
• M5: 5,547,388 km (0.115 R)
• M6: 9,045,136 km (0.108 R)
• M7: 11,703,041 km (0.109 R)
• M8: 16,926,101 km (0.087 R)
• M9: 17,734,080 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.3

Radius: 6.2

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.44 AU - 8.84 AU

Year: 12723 Days

Day: 24.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,228,735 km

• M1: 78,090 km (0.095 R)
• M2: 272,268 km (0.07 R)
• M3: 497,563 km (0.056 R)
• M4: 712,385 km (0.114 R)
• M5: 1,122,882 km (0.067 R)
• M6: 1,363,285 km (0.105 R)
• M7: 1,583,045 km (0.045 R)
• M8: 3,679,060 km (0.079 R)
• M9: 5,128,963 km (0.074 R)
• M10: 7,150,180 km (0.102 R)
• M11: 8,358,033 km (0.049 R)
• M12: 10,966,272 km (0.067 R)
• M13: 11,588,300 km (0.045 R)
• M14: 11,854,285 km (0.111 R)
• M15: 13,188,548 km (0.106 R)
• M16: 14,313,375 km (0.064 R)
• M17: 15,759,088 km (0.113 R)
• M18: 16,483,741 km (0.112 R)
• M19: 17,024,686 km (0.103 R)
• M20: 17,230,384 km (0.1 R)
• M21: 17,999,466 km (0.116 R)
• M22: 19,680,946 km (0.093 R)
• M23: 24,121,011 km (0.076 R)
• M24: 24,994,214 km (0.11 R)
• M25: 25,260,199 km (0.118 R)
• M26: 31,395,507 km (0.106 R)
• M27: 32,752,509 km (0.108 R)
• M28: 35,919,496 km (0.07 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 18,098 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit