🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.77 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.4

Radius: 8.2

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.5 AU - 1.56 AU

Year: 1284 Days

Day: 5.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,178,153 km

• M1: 102,026 km (0.104 R)
• M2: 371,003 km (0.101 R)
• M3: 648,806 km (0.094 R)
• M4: 1,355,506 km (0.111 R)
• M5: 1,803,103 km (0.117 R)
• M6: 2,121,298 km (0.111 R)
• M7: 2,688,423 km (0.103 R)
• M8: 3,353,087 km (0.055 R)
• M9: 3,724,239 km (0.112 R)
• M10: 4,209,235 km (0.072 R)
• M11: 4,811,666 km (0.106 R)
• M12: 6,557,174 km (0.114 R)
• M13: 6,892,572 km (0.091 R)
• M14: 7,366,199 km (0.067 R)
• M15: 9,420,328 km (0.085 R)
• M16: 10,224,865 km (0.032 R)
• M17: 11,344,904 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.7

Radius: 9.2

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.19 AU - 1.89 AU

Year: 1296 Days

Day: 5.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,178,153 km

• M1: 115,340 km (0.116 R)
• M2: 414,685 km (0.078 R)
• M3: 749,934 km (0.063 R)
• M4: 1,271,283 km (0.095 R)
• M5: 1,721,572 km (0.039 R)
• M6: 2,354,072 km (0.075 R)
• M7: 2,712,209 km (0.113 R)
• M8: 3,106,549 km (0.068 R)
• M9: 3,568,956 km (0.105 R)
• M10: 4,596,095 km (0.062 R)
• M11: 5,217,675 km (0.106 R)
• M12: 5,620,841 km (0.082 R)
• M13: 6,885,392 km (0.093 R)
• M14: 7,198,650 km (0.075 R)
• M15: 8,089,505 km (0.104 R)
• M16: 8,603,074 km (0.085 R)
• M17: 8,910,199 km (0.117 R)
• M18: 9,399,234 km (0.077 R)
• M19: 10,909,574 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.5

Radius: 8

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.27 AU - 3.49 AU

Year: 4215 Days

Day: 13.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,178,153 km

• M1: 106,962 km (0.071 R)
• M2: 435,330 km (0.068 R)
• M3: 804,687 km (0.066 R)
• M4: 1,126,023 km (0.11 R)
• M5: 2,114,566 km (0.063 R)
• M6: 2,657,606 km (0.1 R)
• M7: 4,593,403 km (0.103 R)
• M8: 6,704,677 km (0.083 R)
• M9: 7,162,447 km (0.107 R)
• M10: 7,673,623 km (0.068 R)
• M11: 8,415,927 km (0.094 R)
• M12: 8,912,592 km (0.113 R)
• M13: 12,768,477 km (0.084 R)
• M14: 13,046,879 km (0.098 R)
• M15: 13,615,949 km (0.087 R)
• M16: 14,350,325 km (0.105 R)
• M17: 15,059,419 km (0.05 R)
• M18: 15,580,020 km (0.039 R)
• M19: 16,383,360 km (0.066 R)
• M20: 17,725,702 km (0.113 R)

Asteroid Belt

Center: 3.76 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.9

Radius: 11

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.18 AU - 5.1 AU

Year: 5713 Days

Day: 7.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,178,153 km

• M1: 139,425 km (0.099 R)
• M2: 651,648 km (0.057 R)
• M3: 1,048,681 km (0.041 R)
• M4: 1,488,798 km (0.12 R)
• M5: 2,327,144 km (0.086 R)
• M6: 2,682,888 km (0.07 R)
• M7: 3,044,616 km (0.117 R)
• M8: 5,463,464 km (0.11 R)
• M9: 5,953,098 km (0.067 R)
• M10: 6,887,187 km (0.101 R)
• M11: 7,829,055 km (0.032 R)
• M12: 8,181,358 km (0.079 R)
• M13: 8,574,950 km (0.089 R)
• M14: 9,531,778 km (0.044 R)
• M15: 10,487,559 km (0.083 R)
• M16: 12,039,637 km (0.088 R)
• M17: 13,404,119 km (0.089 R)
• M18: 13,952,096 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.4

Radius: 10

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.82 AU - 5.28 AU

Year: 6583 Days

Day: 5.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,178,153 km

• M1: 139,276 km (0.103 R)
• M2: 643,121 km (0.068 R)
• M3: 972,237 km (0.11 R)
• M4: 1,356,853 km (0.104 R)
• M5: 2,670,322 km (0.077 R)
• M6: 4,507,982 km (0.053 R)
• M7: 4,958,272 km (0.103 R)
• M8: 11,186,330 km (0.117 R)
• M9: 11,557,483 km (0.107 R)
• M10: 12,760,698 km (0.088 R)
• M11: 14,002,809 km (0.1 R)
• M12: 14,963,527 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.1

Radius: 6.6

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.9 AU - 6.22 AU

Year: 10118 Days

Day: 19.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 77,178,153 km

• M1: 82,877 km (0.114 R)
• M2: 326,722 km (0.067 R)
• M3: 1,150,408 km (0.09 R)
• M4: 1,414,597 km (0.096 R)
• M5: 1,874,312 km (0.091 R)
• M6: 2,153,910 km (0.086 R)
• M7: 2,445,028 km (0.102 R)
• M8: 3,069,150 km (0.093 R)
• M9: 3,645,251 km (0.073 R)
• M10: 4,128,602 km (0.041 R)
• M11: 6,497,335 km (0.115 R)
• M12: 7,825,315 km (0.114 R)
• M13: 8,111,197 km (0.076 R)
• M14: 8,856,493 km (0.096 R)
• M15: 10,142,586 km (0.084 R)
• M16: 11,457,103 km (0.091 R)
• M17: 12,733,920 km (0.098 R)
• M18: 13,945,962 km (0.045 R)
• M19: 17,430,396 km (0.095 R)
• M20: 18,415,647 km (0.073 R)
• M21: 21,177,673 km (0.1 R)
• M22: 24,658,965 km (0.098 R)
• M23: 26,614,808 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.5

Radius: 4.5

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 4.84 AU - 7.32 AU

Year: 10168 Days

Day: 21.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,178,153 km

• M1: 57,745 km (0.04 R)
• M2: 518,506 km (0.12 R)
• M3: 963,261 km (0.105 R)
• M4: 1,465,012 km (0.117 R)
• M5: 1,978,881 km (0.073 R)
• M6: 4,022,088 km (0.082 R)
• M7: 4,870,907 km (0.082 R)
• M8: 5,015,119 km (0.053 R)
• M9: 7,826,811 km (0.087 R)
• M10: 13,606,824 km (0.116 R)
• M11: 16,172,876 km (0.078 R)
• M12: 18,051,975 km (0.12 R)
• M13: 18,340,101 km (0.114 R)
• M14: 20,195,114 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.2

Radius: 6.6

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 6.68 AU - 7.36 AU

Year: 12615 Days

Day: 17.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,178,153 km

• M1: 82,129 km (0.109 R)
• M2: 537,505 km (0.073 R)
• M3: 1,011,730 km (0.033 R)
• M4: 1,589,627 km (0.066 R)
• M5: 2,609,585 km (0.108 R)
• M6: 3,219,645 km (0.106 R)
• M7: 5,344,534 km (0.117 R)
• M8: 6,507,956 km (0.112 R)
• M9: 6,920,098 km (0.109 R)
• M10: 7,901,909 km (0.096 R)
• M11: 11,177,055 km (0.079 R)
• M12: 11,402,051 km (0.112 R)
• M13: 17,751,283 km (0.033 R)
• M14: 20,704,794 km (0.115 R)
• M15: 21,112,747 km (0.097 R)
• M16: 23,452,608 km (0.079 R)
• M17: 25,105,365 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881.7

Radius: 4.4

Gravity: 45.54 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.69 AU - 11.11 AU

Year: 18008 Days

Day: 23.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,178,153 km

• M1: 54,753 km (0.08 R)
• M2: 270,922 km (0.064 R)
• M3: 662,569 km (0.103 R)
• M4: 1,379,143 km (0.113 R)
• M5: 2,264,463 km (0.03 R)
• M6: 3,059,276 km (0.079 R)
• M7: 3,305,066 km (0.083 R)
• M8: 3,929,637 km (0.096 R)
• M9: 7,129,535 km (0.076 R)
• M10: 7,960,103 km (0.101 R)
• M11: 8,372,544 km (0.101 R)
• M12: 10,046,395 km (0.115 R)
• M13: 14,640,246 km (0.111 R)
• M14: 15,102,354 km (0.107 R)
• M15: 15,415,911 km (0.073 R)
• M16: 15,653,921 km (0.096 R)
• M17: 16,713,373 km (0.111 R)
• M18: 17,994,230 km (0.052 R)
• M19: 19,431,118 km (0.089 R)
• M20: 20,367,152 km (0.111 R)
• M21: 22,632,961 km (0.081 R)
• M22: 31,816,475 km (0.084 R)
• M23: 32,073,335 km (0.1 R)
• M24: 34,312,516 km (0.114 R)
• M25: 34,854,210 km (0.12 R)
• M26: 36,653,872 km (0.114 R)
• M27: 38,952,593 km (0.085 R)
• M28: 44,793,492 km (0.068 R)
• M29: 48,090,031 km (0.062 R)
• M30: 50,143,411 km (0.117 R)
• M31: 53,876,327 km (0.094 R)
• M32: 55,717,278 km (0.113 R)
• M33: 59,914,246 km (0.08 R)
• M34: 61,491,158 km (0.103 R)
• M35: 62,490,621 km (0.084 R)
• M36: 64,522,010 km (0.045 R)
• M37: 64,727,558 km (0.079 R)
• M38: 66,387,496 km (0.076 R)
• M39: 66,596,933 km (0.076 R)
• M40: 72,865,084 km (0.08 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 13,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit