🌌 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: 704.5

Radius: 9.7

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.51 AU - 0.59 AU

Year: 282 Days

Day: 6.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,346,964 km

• M1: 120,875 km (0.058 R)
• M2: 509,830 km (0.078 R)
• M3: 873,652 km (0.057 R)
• M4: 1,608,776 km (0.06 R)
• M5: 1,922,333 km (0.087 R)
• M6: 2,293,485 km (0.114 R)
• M7: 2,712,359 km (0.096 R)
• M8: 3,100,117 km (0.063 R)
• M9: 3,469,474 km (0.12 R)
• M10: 3,879,970 km (0.11 R)
• M11: 4,412,838 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.7

Radius: 9.2

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.55 AU - 0.87 AU

Year: 413 Days

Day: 9.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,346,964 km

• M1: 114,742 km (0.118 R)
• M2: 478,863 km (0.114 R)
• M3: 846,724 km (0.109 R)
• M4: 1,366,277 km (0.061 R)
• M5: 2,069,986 km (0.099 R)
• M6: 2,537,629 km (0.058 R)
• M7: 3,488,922 km (0.103 R)
• M8: 4,304,380 km (0.052 R)
• M9: 4,779,652 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.9

Radius: 13.4

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.57 AU - 0.95 AU

Year: 457 Days

Day: 14.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,346,964 km

• M1: 166,652 km (0.102 R)
• M2: 625,319 km (0.075 R)
• M3: 1,253,780 km (0.072 R)
• M4: 1,820,008 km (0.106 R)
• M5: 2,419,746 km (0.076 R)
• M6: 2,883,948 km (0.096 R)
• M7: 3,629,843 km (0.026 R)
• M8: 4,228,833 km (0.114 R)
• M9: 4,800,596 km (0.11 R)
• M10: 5,242,657 km (0.066 R)
• M11: 6,046,447 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.2

Radius: 10.8

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.73 AU - 1.11 AU

Year: 609 Days

Day: 6.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,346,964 km

• M1: 134,339 km (0.086 R)
• M2: 872,455 km (0.096 R)
• M3: 1,257,520 km (0.101 R)
• M4: 1,644,679 km (0.102 R)
• M5: 2,059,514 km (0.104 R)
• M6: 2,455,200 km (0.103 R)
• M7: 3,035,640 km (0.089 R)
• M8: 3,771,213 km (0.054 R)
• M9: 4,139,074 km (0.074 R)
• M10: 4,697,822 km (0.098 R)
• M11: 5,306,236 km (0.092 R)
• M12: 5,699,529 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.9

Radius: 13.2

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.09 AU - 1.67 AU

Year: 1119 Days

Day: 12.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,346,964 km

• M1: 164,109 km (0.118 R)
• M2: 698,921 km (0.11 R)
• M3: 1,201,271 km (0.113 R)
• M4: 1,648,269 km (0.085 R)
• M5: 2,274,935 km (0.098 R)
• M6: 2,759,482 km (0.06 R)
• M7: 3,363,559 km (0.083 R)
• M8: 3,828,210 km (0.062 R)
• M9: 4,396,532 km (0.041 R)
• M10: 5,612,912 km (0.112 R)
• M11: 6,750,903 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.8

Radius: 14.5

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.41 AU - 2.03 AU

Year: 1557 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,346,964 km

• M1: 186,549 km (0.088 R)
• M2: 856,597 km (0.105 R)
• M3: 1,547,889 km (0.079 R)
• M4: 2,661,645 km (0.11 R)
• M5: 3,571,799 km (0.055 R)
• M6: 5,547,987 km (0.099 R)
• M7: 10,317,466 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.1

Radius: 14.5

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.32 AU - 2.68 AU

Year: 2728 Days

Day: 6.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,346,964 km

• M1: 181,612 km (0.062 R)
• M2: 800,797 km (0.082 R)
• M3: 1,534,276 km (0.089 R)
• M4: 2,054,727 km (0.082 R)
• M5: 2,525,960 km (0.074 R)
• M6: 3,245,077 km (0.111 R)
• M7: 3,732,018 km (0.096 R)
• M8: 4,443,356 km (0.063 R)
• M9: 5,268,538 km (0.1 R)
• M10: 6,622,698 km (0.106 R)
• M11: 7,701,298 km (0.083 R)
• M12: 9,183,065 km (0.092 R)
• M13: 10,089,030 km (0.115 R)
• M14: 11,095,225 km (0.068 R)
• M15: 12,751,722 km (0.063 R)
• M16: 13,831,370 km (0.098 R)
• M17: 15,906,143 km (0.059 R)
• M18: 17,325,079 km (0.099 R)
• M19: 18,065,439 km (0.041 R)
• M20: 19,731,810 km (0.119 R)
• M21: 21,111,401 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.3

Radius: 8

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.84 AU - 6.1 AU

Year: 7648 Days

Day: 5.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,346,964 km

• M1: 99,483 km (0.114 R)
• M2: 911,799 km (0.115 R)
• M3: 1,577,061 km (0.095 R)
• M4: 2,255,637 km (0.033 R)
• M5: 2,980,738 km (0.073 R)
• M6: 3,376,723 km (0.098 R)
• M7: 3,630,890 km (0.049 R)
• M8: 4,396,831 km (0.119 R)
• M9: 4,649,053 km (0.107 R)
• M10: 5,072,714 km (0.099 R)
• M11: 5,906,423 km (0.073 R)
• M12: 6,276,977 km (0.095 R)
• M13: 7,589,549 km (0.077 R)
• M14: 11,160,001 km (0.063 R)
• M15: 11,441,245 km (0.032 R)
• M16: 16,428,240 km (0.057 R)
• M17: 16,853,696 km (0.087 R)
• M18: 19,971,465 km (0.107 R)
• M19: 29,138,972 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.5

Radius: 7

Gravity: 17.77 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 7.8 AU - 9.22 AU

Year: 17136 Days

Day: 23.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,346,964 km

• M1: 89,460 km (0.108 R)
• M2: 347,815 km (0.057 R)
• M3: 845,826 km (0.09 R)
• M4: 1,152,652 km (0.086 R)
• M5: 2,408,077 km (0.091 R)
• M6: 3,136,469 km (0.102 R)
• M7: 3,580,625 km (0.067 R)
• M8: 3,879,073 km (0.075 R)
• M9: 6,853,976 km (0.052 R)
• M10: 7,174,714 km (0.084 R)
• M11: 7,601,816 km (0.082 R)
• M12: 7,995,408 km (0.093 R)
• M13: 9,093,905 km (0.109 R)
• M14: 9,650,858 km (0.116 R)
• M15: 10,894,166 km (0.113 R)
• M16: 13,551,922 km (0.111 R)
• M17: 19,828,899 km (0.097 R)
• M18: 22,122,982 km (0.111 R)
• M19: 22,622,340 km (0.107 R)
• M20: 23,643,345 km (0.111 R)
• M21: 25,997,417 km (0.106 R)
• M22: 26,665,521 km (0.103 R)
• M23: 27,574,029 km (0.114 R)
• M24: 35,056,915 km (0.102 R)
• M25: 35,462,923 km (0.081 R)
• M26: 40,435,257 km (0.119 R)
• M27: 44,101,153 km (0.088 R)
• M28: 53,862,414 km (0.096 R)
• M29: 55,495,574 km (0.086 R)
• M30: 58,669,891 km (0.045 R)
• M31: 63,554,860 km (0.115 R)
• M32: 70,194,014 km (0.08 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 15,184 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit