🌌 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: 408.8

Radius: 10

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.47 AU - 0.73 AU

Year: 310 Days

Day: 13.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,367,663 km

• M1: 124,316 km (0.109 R)
• M2: 452,982 km (0.115 R)
• M3: 873,053 km (0.103 R)
• M4: 1,203,365 km (0.053 R)
• M5: 1,534,276 km (0.11 R)
• M6: 2,040,665 km (0.09 R)
• M7: 2,690,817 km (0.116 R)
• M8: 3,021,578 km (0.102 R)
• M9: 3,580,027 km (0.102 R)
• M10: 3,901,363 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.3

Radius: 14.5

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.69 AU - 0.71 AU

Year: 391 Days

Day: 12.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,367,663 km

• M1: 180,415 km (0.087 R)
• M2: 771,476 km (0.103 R)
• M3: 1,729,052 km (0.112 R)
• M4: 2,224,820 km (0.099 R)
• M5: 2,748,113 km (0.11 R)
• M6: 4,443,506 km (0.033 R)
• M7: 4,894,394 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.7

Radius: 14.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.63 AU - 2.13 AU

Year: 1719 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,367,663 km

• M1: 176,525 km (0.113 R)
• M2: 661,073 km (0.099 R)
• M3: 1,204,113 km (0.057 R)
• M4: 1,726,958 km (0.033 R)
• M5: 2,316,822 km (0.114 R)
• M6: 2,923,890 km (0.117 R)
• M7: 3,892,387 km (0.076 R)
• M8: 4,617,488 km (0.057 R)
• M9: 5,564,592 km (0.074 R)
• M10: 7,051,146 km (0.086 R)
• M11: 7,844,763 km (0.114 R)
• M12: 9,193,238 km (0.071 R)
• M13: 12,462,999 km (0.087 R)
• M14: 14,082,994 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.1

Radius: 14.1

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.17 AU - 2.77 AU

Year: 2589 Days

Day: 6.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 89,367,663 km

• M1: 176,376 km (0.088 R)
• M2: 1,917,396 km (0.057 R)
• M3: 2,593,429 km (0.114 R)
• M4: 4,010,719 km (0.117 R)
• M5: 6,126,482 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.9

Radius: 12.3

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.03 AU - 4.13 AU

Year: 4517 Days

Day: 8.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,367,663 km

• M1: 154,235 km (0.11 R)
• M2: 658,979 km (0.057 R)
• M3: 1,138,889 km (0.116 R)
• M4: 1,764,357 km (0.07 R)
• M5: 2,959,195 km (0.108 R)
• M6: 3,439,853 km (0.091 R)
• M7: 5,150,505 km (0.032 R)
• M8: 5,591,220 km (0.105 R)
• M9: 5,997,379 km (0.102 R)
• M10: 7,439,353 km (0.115 R)
• M11: 8,483,845 km (0.086 R)
• M12: 9,913,701 km (0.055 R)
• M13: 11,684,491 km (0.117 R)
• M14: 12,546,624 km (0.091 R)
• M15: 14,668,370 km (0.046 R)
• M16: 16,542,233 km (0.057 R)
• M17: 17,877,095 km (0.111 R)
• M18: 19,878,116 km (0.085 R)
• M19: 21,456,374 km (0.113 R)
• M20: 24,860,773 km (0.06 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.6

Radius: 5.5

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.28 AU - 9.68 AU

Year: 19464 Days

Day: 24 Hours

Environment

Temp: -239 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,367,663 km

• M1: 70,461 km (0.027 R)
• M2: 286,779 km (0.091 R)
• M3: 542,591 km (0.114 R)
• M4: 1,590,674 km (0.069 R)
• M5: 4,515,462 km (0.064 R)
• M6: 4,935,084 km (0.084 R)
• M7: 6,630,776 km (0.093 R)
• M8: 9,277,910 km (0.066 R)
• M9: 10,279,019 km (0.116 R)
• M10: 10,833,728 km (0.03 R)
• M11: 11,643,801 km (0.111 R)
• M12: 14,383,386 km (0.095 R)
• M13: 16,085,361 km (0.1 R)
• M14: 17,996,325 km (0.096 R)
• M15: 18,395,901 km (0.085 R)
• M16: 19,129,977 km (0.119 R)
• M17: 25,319,589 km (0.116 R)
• M18: 28,645,299 km (0.108 R)
• M19: 37,686,696 km (0.115 R)
• M20: 52,893,319 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.5

Radius: 3

Gravity: 75.06 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.22 AU - 11.84 AU

Year: 21183 Days

Day: 24.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 89,367,663 km

• M1: 37,250 km (0.066 R)
• M2: 206,146 km (0.1 R)
• M3: 302,786 km (0.119 R)
• M4: 808,128 km (0.111 R)
• M5: 1,568,384 km (0.048 R)
• M6: 1,995,636 km (0.034 R)
• M7: 2,357,962 km (0.115 R)
• M8: 2,638,906 km (0.116 R)
• M9: 4,560,940 km (0.09 R)
• M10: 5,458,228 km (0.04 R)
• M11: 6,921,893 km (0.064 R)
• M12: 8,255,708 km (0.072 R)
• M13: 10,718,388 km (0.106 R)
• M14: 13,123,473 km (0.092 R)
• M15: 15,463,334 km (0.098 R)
• M16: 16,773,212 km (0.088 R)
• M17: 24,987,781 km (0.116 R)
• M18: 25,097,736 km (0.098 R)
• M19: 28,070,096 km (0.094 R)
• M20: 32,169,377 km (0.116 R)
• M21: 34,701,470 km (0.091 R)
• M22: 38,231,232 km (0.116 R)
• M23: 38,377,239 km (0.08 R)
• M24: 42,616,693 km (0.1 R)
• M25: 43,246,650 km (0.109 R)
• M26: 43,564,097 km (0.067 R)
• M27: 62,896,779 km (0.096 R)
• M28: 64,329,927 km (0.052 R)
• M29: 68,115,052 km (0.105 R)
• M30: 75,434,876 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 946.3

Radius: 3.7

Gravity: 69.12 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 8.53 AU - 11.83 AU

Year: 21660 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 89,367,663 km

• M1: 46,076 km (0.069 R)
• M2: 216,319 km (0.025 R)
• M3: 372,200 km (0.083 R)
• M4: 500,554 km (0.114 R)
• M5: 630,106 km (0.033 R)
• M6: 1,580,053 km (0.093 R)
• M7: 1,727,107 km (0.099 R)
• M8: 1,985,912 km (0.083 R)
• M9: 2,179,791 km (0.073 R)
• M10: 2,362,450 km (0.106 R)
• M11: 3,556,689 km (0.076 R)
• M12: 5,263,451 km (0.047 R)
• M13: 5,592,866 km (0.113 R)
• M14: 5,719,875 km (0.095 R)
• M15: 6,292,685 km (0.07 R)
• M16: 8,854,100 km (0.111 R)
• M17: 9,260,557 km (0.088 R)
• M18: 9,498,418 km (0.116 R)
• M19: 9,862,688 km (0.096 R)
• M20: 10,619,055 km (0.097 R)
• M21: 16,938,518 km (0.028 R)
• M22: 28,630,190 km (0.088 R)
• M23: 28,881,664 km (0.091 R)
• M24: 37,427,891 km (0.114 R)
• M25: 40,349,538 km (0.031 R)
• M26: 44,084,997 km (0.074 R)
• M27: 45,436,613 km (0.06 R)
• M28: 46,989,738 km (0.063 R)
• M29: 52,610,130 km (0.085 R)
• M30: 58,661,963 km (0.084 R)
• M31: 70,282,276 km (0.025 R)
• M32: 80,064,032 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 13,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit