🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.5

Radius: 13.7

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.59 AU - 0.83 AU

Year: 386 Days

Day: 12.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 37,715,242 km

• M1: 170,691 km (0.105 R)
• M2: 642,224 km (0.116 R)
• M3: 1,080,994 km (0.079 R)
• M4: 2,006,407 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.4

Radius: 12

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.88 AU - 1.9 AU

Year: 1678 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,715,242 km

• M1: 150,346 km (0.1 R)
• M2: 682,166 km (0.098 R)
• M3: 1,076,955 km (0.112 R)
• M4: 1,677,890 km (0.119 R)
• M5: 2,986,871 km (0.107 R)
• M6: 3,511,062 km (0.115 R)
• M7: 4,095,990 km (0.047 R)
• M8: 4,645,463 km (0.078 R)
• M9: 5,137,041 km (0.1 R)
• M10: 5,595,559 km (0.105 R)
• M11: 6,595,022 km (0.093 R)
• M12: 7,137,614 km (0.106 R)
• M13: 8,823,282 km (0.094 R)
• M14: 10,074,369 km (0.114 R)
• M15: 11,043,165 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.6

Radius: 12.6

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.66 AU - 3.04 AU

Year: 3107 Days

Day: 14.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,715,242 km

• M1: 159,621 km (0.034 R)
• M2: 645,515 km (0.117 R)
• M3: 1,088,773 km (0.098 R)
• M4: 2,313,082 km (0.078 R)
• M5: 2,821,865 km (0.053 R)
• M6: 3,268,863 km (0.045 R)
• M7: 5,750,093 km (0.051 R)
• M8: 6,719,637 km (0.084 R)
• M9: 7,375,474 km (0.106 R)
• M10: 7,795,395 km (0.095 R)
• M11: 8,199,459 km (0.085 R)
• M12: 8,650,347 km (0.058 R)
• M13: 9,886,474 km (0.067 R)
• M14: 11,158,954 km (0.071 R)
• M15: 11,593,237 km (0.12 R)
• M16: 14,487,058 km (0.103 R)
• M17: 15,099,811 km (0.051 R)
• M18: 15,877,570 km (0.071 R)
• M19: 16,938,817 km (0.03 R)
• M20: 17,566,081 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.4

Radius: 12.2

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.76 AU - 3.32 AU

Year: 3422 Days

Day: 8.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 178.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,715,242 km

• M1: 151,842 km (0.114 R)
• M2: 712,684 km (0.077 R)
• M3: 1,974,542 km (0.085 R)
• M4: 2,425,281 km (0.107 R)
• M5: 3,433,870 km (0.102 R)
• M6: 4,534,760 km (0.086 R)
• M7: 5,009,434 km (0.05 R)
• M8: 6,501,972 km (0.061 R)
• M9: 7,630,090 km (0.112 R)
• M10: 8,526,630 km (0.098 R)
• M11: 8,950,740 km (0.048 R)
• M12: 9,491,985 km (0.079 R)
• M13: 10,055,071 km (0.105 R)
• M14: 11,482,085 km (0.097 R)
• M15: 12,162,606 km (0.117 R)
• M16: 12,701,009 km (0.047 R)
• M17: 13,428,802 km (0.092 R)
• M18: 15,109,385 km (0.078 R)
• M19: 16,521,439 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.2

Radius: 11.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.06 AU - 3.38 AU

Year: 3731 Days

Day: 13.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,715,242 km

• M1: 155,731 km (0.059 R)
• M2: 729,589 km (0.067 R)
• M3: 1,527,693 km (0.092 R)
• M4: 1,956,740 km (0.105 R)
• M5: 2,466,420 km (0.087 R)
• M6: 4,254,115 km (0.113 R)
• M7: 5,752,786 km (0.053 R)
• M8: 7,929,435 km (0.102 R)
• M9: 10,015,877 km (0.076 R)
• M10: 11,220,887 km (0.099 R)
• M11: 11,894,527 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.4

Radius: 13.6

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.78 AU - 4.18 AU

Year: 4192 Days

Day: 6.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,715,242 km

• M1: 169,345 km (0.106 R)
• M2: 610,659 km (0.111 R)
• M3: 1,273,826 km (0.097 R)
• M4: 1,977,534 km (0.099 R)
• M5: 3,168,632 km (0.06 R)
• M6: 4,275,806 km (0.113 R)
• M7: 5,027,536 km (0.089 R)
• M8: 5,626,526 km (0.069 R)
• M9: 6,893,769 km (0.118 R)
• M10: 8,259,448 km (0.042 R)
• M11: 8,947,598 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.8

Radius: 9.7

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.96 AU - 6.82 AU

Year: 9230 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 37,715,242 km

• M1: 121,324 km (0.075 R)
• M2: 707,149 km (0.078 R)
• M3: 1,132,007 km (0.096 R)
• M4: 1,796,820 km (0.096 R)
• M5: 2,191,908 km (0.077 R)
• M6: 4,172,584 km (0.057 R)
• M7: 4,725,647 km (0.073 R)
• M8: 5,326,881 km (0.118 R)
• M9: 5,843,891 km (0.112 R)
• M10: 6,218,634 km (0.077 R)
• M11: 7,677,961 km (0.087 R)
• M12: 8,595,594 km (0.05 R)
• M13: 9,262,053 km (0.047 R)
• M14: 11,364,202 km (0.113 R)
• M15: 12,442,952 km (0.102 R)
• M16: 14,616,310 km (0.059 R)
• M17: 17,446,552 km (0.098 R)
• M18: 17,939,477 km (0.057 R)
• M19: 19,549,599 km (0.109 R)
• M20: 20,004,975 km (0.107 R)
• M21: 20,389,741 km (0.117 R)
• M22: 20,858,132 km (0.105 R)
• M23: 21,978,770 km (0.079 R)
• M24: 24,602,567 km (0.09 R)
• M25: 25,133,489 km (0.078 R)
• M26: 26,679,284 km (0.118 R)
• M27: 29,461,057 km (0.077 R)
• M28: 32,961,796 km (0.059 R)
• M29: 34,370,709 km (0.091 R)
• M30: 35,369,275 km (0.087 R)
• M31: 38,957,230 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.3

Radius: 5.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.89 AU - 13.09 AU

Year: 23524 Days

Day: 20.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,715,242 km

• M1: 72,106 km (0.11 R)
• M2: 500,854 km (0.114 R)
• M3: 681,717 km (0.096 R)
• M4: 880,832 km (0.12 R)
• M5: 2,463,279 km (0.061 R)
• M6: 3,856,932 km (0.088 R)
• M7: 4,157,624 km (0.049 R)
• M8: 5,708,056 km (0.12 R)
• M9: 11,393,823 km (0.063 R)
• M10: 12,277,647 km (0.104 R)
• M11: 12,763,690 km (0.037 R)
• M12: 13,150,401 km (0.105 R)
• M13: 13,831,670 km (0.076 R)
• M14: 17,123,870 km (0.101 R)
• M15: 23,435,404 km (0.119 R)
• M16: 28,345,505 km (0.029 R)
• M17: 29,288,870 km (0.106 R)
• M18: 30,058,551 km (0.062 R)
• M19: 34,004,643 km (0.118 R)
• M20: 36,930,329 km (0.115 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 16,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit