🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.1

Radius: 11.1

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.66 AU - 0.7 AU

Year: 368 Days

Day: 9.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,792,385 km

• M1: 139,575 km (0.096 R)
• M2: 532,419 km (0.116 R)
• M3: 901,626 km (0.048 R)
• M4: 1,279,361 km (0.1 R)
• M5: 1,625,082 km (0.114 R)
• M6: 3,140,209 km (0.057 R)
• M7: 3,521,983 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.2

Radius: 9.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.59 AU - 0.83 AU

Year: 392 Days

Day: 8 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,792,385 km

• M1: 113,246 km (0.119 R)
• M2: 458,218 km (0.117 R)
• M3: 901,327 km (0.065 R)
• M4: 1,596,060 km (0.045 R)
• M5: 2,043,208 km (0.09 R)
• M6: 2,587,894 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.2

Radius: 10.9

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.17 AU - 2.71 AU

Year: 2500 Days

Day: 7.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,792,385 km

• M1: 135,536 km (0.114 R)
• M2: 517,908 km (0.074 R)
• M3: 886,966 km (0.107 R)
• M4: 1,265,448 km (0.091 R)
• M5: 1,774,680 km (0.106 R)
• M6: 2,497,985 km (0.07 R)
• M7: 3,114,029 km (0.047 R)
• M8: 3,902,410 km (0.101 R)
• M9: 4,324,126 km (0.115 R)
• M10: 5,080,044 km (0.106 R)
• M11: 5,420,230 km (0.066 R)
• M12: 6,402,639 km (0.041 R)
• M13: 7,046,808 km (0.117 R)
• M14: 7,792,852 km (0.109 R)
• M15: 10,676,052 km (0.031 R)
• M16: 13,461,564 km (0.092 R)
• M17: 15,773,599 km (0.057 R)
• M18: 16,256,352 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 8.3

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.27 AU - 3.91 AU

Year: 4462 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,792,385 km

• M1: 104,868 km (0.12 R)
• M2: 390,750 km (0.046 R)
• M3: 1,087,128 km (0.062 R)
• M4: 1,653,505 km (0.082 R)
• M5: 2,117,259 km (0.092 R)
• M6: 2,548,549 km (0.087 R)
• M7: 4,486,739 km (0.092 R)
• M8: 5,041,299 km (0.09 R)
• M9: 6,226,563 km (0.103 R)
• M10: 8,750,129 km (0.09 R)
• M11: 10,365,038 km (0.084 R)
• M12: 11,063,511 km (0.114 R)
• M13: 12,798,397 km (0.102 R)
• M14: 14,653,560 km (0.038 R)
• M15: 16,563,775 km (0.097 R)
• M16: 17,578,647 km (0.08 R)
• M17: 20,464,390 km (0.116 R)
• M18: 24,175,315 km (0.106 R)
• M19: 25,246,137 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.6

Radius: 11.3

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.1 AU - 4.78 AU

Year: 5130 Days

Day: 12.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,792,385 km

• M1: 140,622 km (0.039 R)
• M2: 546,032 km (0.102 R)
• M3: 902,524 km (0.095 R)
• M4: 1,503,309 km (0.045 R)
• M5: 1,993,990 km (0.065 R)
• M6: 2,573,083 km (0.082 R)
• M7: 4,792,218 km (0.062 R)
• M8: 6,492,548 km (0.096 R)
• M9: 7,551,102 km (0.1 R)
• M10: 8,178,665 km (0.069 R)
• M11: 9,041,995 km (0.102 R)
• M12: 9,749,892 km (0.112 R)
• M13: 10,404,831 km (0.102 R)
• M14: 11,370,785 km (0.062 R)
• M15: 13,694,638 km (0.116 R)
• M16: 16,684,052 km (0.101 R)
• M17: 18,462,023 km (0.07 R)
• M18: 20,574,046 km (0.115 R)
• M19: 21,288,375 km (0.06 R)
• M20: 23,531,147 km (0.087 R)
• M21: 24,154,820 km (0.036 R)
• M22: 25,272,765 km (0.114 R)
• M23: 26,009,535 km (0.095 R)
• M24: 26,760,516 km (0.116 R)
• M25: 27,354,569 km (0.051 R)
• M26: 31,198,636 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.1

Radius: 4.9

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.74 AU - 6.1 AU

Year: 9449 Days

Day: 21.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,792,385 km

• M1: 62,233 km (0.089 R)
• M2: 2,454,153 km (0.112 R)
• M3: 3,061,072 km (0.097 R)
• M4: 4,720,561 km (0.074 R)
• M5: 6,434,055 km (0.051 R)
• M6: 7,207,027 km (0.065 R)
• M7: 11,129,034 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532

Radius: 6.4

Gravity: 12.99 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8.21 AU - 10.51 AU

Year: 18786 Days

Day: 17.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,792,385 km

• M1: 79,586 km (0.095 R)
• M2: 288,125 km (0.033 R)
• M3: 691,292 km (0.086 R)
• M4: 916,287 km (0.107 R)
• M5: 1,383,780 km (0.039 R)
• M6: 2,173,657 km (0.094 R)
• M7: 2,509,355 km (0.045 R)
• M8: 3,284,272 km (0.104 R)
• M9: 4,937,927 km (0.034 R)
• M10: 6,772,744 km (0.051 R)
• M11: 8,606,216 km (0.066 R)
• M12: 9,231,086 km (0.03 R)
• M13: 10,629,677 km (0.106 R)
• M14: 11,533,397 km (0.076 R)
• M15: 13,770,035 km (0.089 R)
• M16: 13,980,370 km (0.074 R)
• M17: 15,212,607 km (0.038 R)
• M18: 15,816,833 km (0.099 R)
• M19: 16,047,513 km (0.086 R)
• M20: 17,234,722 km (0.066 R)
• M21: 18,907,376 km (0.073 R)
• M22: 21,426,604 km (0.096 R)
• M23: 26,791,632 km (0.059 R)
• M24: 29,490,976 km (0.075 R)
• M25: 31,752,298 km (0.104 R)
• M26: 32,613,832 km (0.071 R)
• M27: 36,083,156 km (0.076 R)
• M28: 38,112,900 km (0.086 R)
• M29: 38,527,884 km (0.112 R)
• M30: 46,836,401 km (0.1 R)
• M31: 57,523,523 km (0.052 R)
• M32: 58,618,878 km (0.116 R)
• M33: 61,797,684 km (0.116 R)
• M34: 62,946,446 km (0.102 R)
• M35: 64,109,419 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.2

Radius: 4.7

Gravity: 23.78 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.14 AU - 9.58 AU

Year: 18786 Days

Day: 15.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,792,385 km

• M1: 58,493 km (0.1 R)
• M2: 447,597 km (0.053 R)
• M3: 650,302 km (0.116 R)
• M4: 1,286,392 km (0.077 R)
• M5: 2,370,528 km (0.114 R)
• M6: 2,704,580 km (0.076 R)
• M7: 2,969,069 km (0.064 R)
• M8: 3,634,181 km (0.078 R)
• M9: 5,627,573 km (0.1 R)
• M10: 7,031,250 km (0.104 R)
• M11: 8,652,890 km (0.083 R)
• M12: 9,387,715 km (0.097 R)
• M13: 10,392,414 km (0.119 R)
• M14: 11,040,622 km (0.114 R)
• M15: 11,405,342 km (0.116 R)
• M16: 11,903,951 km (0.117 R)
• M17: 12,811,562 km (0.059 R)
• M18: 22,655,102 km (0.115 R)
• M19: 25,806,231 km (0.11 R)
• M20: 29,584,924 km (0.097 R)
• M21: 33,589,509 km (0.088 R)
• M22: 44,918,406 km (0.045 R)
• M23: 62,292,853 km (0.1 R)
• M24: 65,994,801 km (0.089 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 12,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit