🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 12.8

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.75 AU - 0.87 AU

Year: 494 Days

Day: 8.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,785,577 km

• M1: 159,172 km (0.113 R)
• M2: 673,639 km (0.095 R)
• M3: 1,141,581 km (0.091 R)
• M4: 1,942,977 km (0.102 R)
• M5: 2,495,143 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.9

Radius: 11.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.06 AU - 1.22 AU

Year: 826 Days

Day: 12.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,785,577 km

• M1: 147,952 km (0.092 R)
• M2: 519,254 km (0.089 R)
• M3: 910,901 km (0.112 R)
• M4: 1,291,179 km (0.112 R)
• M5: 1,866,832 km (0.063 R)
• M6: 2,261,471 km (0.096 R)
• M7: 2,670,771 km (0.038 R)
• M8: 3,072,441 km (0.12 R)
• M9: 3,824,021 km (0.117 R)
• M10: 4,528,178 km (0.057 R)
• M11: 5,055,211 km (0.089 R)
• M12: 5,850,922 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.5

Radius: 12.8

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.04 AU - 1.36 AU

Year: 892 Days

Day: 6.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,785,577 km

• M1: 159,322 km (0.035 R)
• M2: 565,031 km (0.089 R)
• M3: 1,016,069 km (0.096 R)
• M4: 1,427,912 km (0.101 R)
• M5: 3,140,508 km (0.075 R)
• M6: 3,572,248 km (0.103 R)
• M7: 3,982,595 km (0.096 R)
• M8: 4,590,261 km (0.115 R)
• M9: 5,113,106 km (0.102 R)
• M10: 5,773,281 km (0.101 R)
• M11: 6,532,341 km (0.111 R)
• M12: 7,473,311 km (0.117 R)
• M13: 7,903,555 km (0.098 R)
• M14: 8,324,972 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.6

Radius: 9

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.44 AU - 1.88 AU

Year: 1451 Days

Day: 13.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,785,577 km

• M1: 112,348 km (0.061 R)
• M2: 405,410 km (0.048 R)
• M3: 958,474 km (0.096 R)
• M4: 1,285,345 km (0.114 R)
• M5: 2,385,488 km (0.104 R)
• M6: 3,173,719 km (0.044 R)
• M7: 3,932,030 km (0.047 R)
• M8: 4,438,419 km (0.092 R)
• M9: 5,669,909 km (0.083 R)
• M10: 6,935,357 km (0.056 R)
• M11: 7,923,900 km (0.117 R)
• M12: 8,437,619 km (0.069 R)
• M13: 9,187,703 km (0.097 R)
• M14: 10,079,755 km (0.035 R)
• M15: 10,580,758 km (0.061 R)
• M16: 10,958,792 km (0.053 R)
• M17: 12,485,438 km (0.052 R)
• M18: 12,946,499 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.7

Radius: 8.7

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.48 AU - 2.02 AU

Year: 1570 Days

Day: 7.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,785,577 km

• M1: 108,159 km (0.094 R)
• M2: 390,301 km (0.067 R)
• M3: 895,642 km (0.117 R)
• M4: 1,286,392 km (0.113 R)
• M5: 1,789,041 km (0.118 R)
• M6: 2,262,817 km (0.114 R)
• M7: 2,771,450 km (0.072 R)
• M8: 3,122,108 km (0.111 R)
• M9: 3,612,489 km (0.055 R)
• M10: 4,387,556 km (0.094 R)
• M11: 4,917,132 km (0.032 R)
• M12: 5,752,188 km (0.079 R)
• M13: 6,678,797 km (0.087 R)
• M14: 6,957,947 km (0.053 R)
• M15: 7,267,315 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.8

Radius: 8

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.8 AU - 2.24 AU

Year: 1947 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,785,577 km

• M1: 99,782 km (0.11 R)
• M2: 517,609 km (0.087 R)
• M3: 819,647 km (0.054 R)
• M4: 1,095,056 km (0.118 R)
• M5: 1,849,927 km (0.107 R)
• M6: 2,777,284 km (0.113 R)
• M7: 3,275,445 km (0.047 R)
• M8: 3,882,364 km (0.104 R)
• M9: 4,230,927 km (0.091 R)
• M10: 4,930,746 km (0.055 R)
• M11: 5,574,465 km (0.119 R)
• M12: 6,087,437 km (0.05 R)
• M13: 6,367,484 km (0.037 R)
• M14: 6,878,061 km (0.064 R)
• M15: 7,735,257 km (0.054 R)
• M16: 8,603,523 km (0.094 R)
• M17: 9,411,501 km (0.077 R)
• M18: 10,599,608 km (0.092 R)
• M19: 12,322,975 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.3

Radius: 10.3

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.79 AU - 2.81 AU

Year: 2366 Days

Day: 14.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,785,577 km

• M1: 128,505 km (0.059 R)
• M2: 460,313 km (0.093 R)
• M3: 1,010,982 km (0.037 R)
• M4: 1,457,233 km (0.116 R)
• M5: 2,057,868 km (0.058 R)
• M6: 3,058,080 km (0.107 R)
• M7: 3,473,513 km (0.068 R)
• M8: 3,887,450 km (0.104 R)
• M9: 4,229,581 km (0.076 R)
• M10: 4,747,040 km (0.094 R)
• M11: 5,577,158 km (0.04 R)
• M12: 5,935,146 km (0.108 R)
• M13: 6,363,145 km (0.116 R)
• M14: 6,956,151 km (0.114 R)
• M15: 8,090,253 km (0.048 R)
• M16: 8,752,523 km (0.118 R)
• M17: 9,132,052 km (0.08 R)
• M18: 13,831,221 km (0.117 R)
• M19: 14,489,601 km (0.081 R)
• M20: 15,070,340 km (0.042 R)
• M21: 16,124,107 km (0.096 R)
• M22: 17,119,232 km (0.05 R)
• M23: 17,768,637 km (0.109 R)
• M24: 19,173,959 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.9

Radius: 14.3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.08 AU - 3.58 AU

Year: 4122 Days

Day: 11.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,785,577 km

• M1: 177,872 km (0.108 R)
• M2: 653,743 km (0.063 R)
• M3: 1,251,685 km (0.112 R)
• M4: 1,873,564 km (0.037 R)
• M5: 2,959,495 km (0.07 R)
• M6: 3,427,736 km (0.115 R)
• M7: 3,907,197 km (0.094 R)
• M8: 4,623,921 km (0.073 R)
• M9: 5,499,966 km (0.106 R)
• M10: 7,135,220 km (0.11 R)
• M11: 8,701,510 km (0.069 R)
• M12: 9,890,962 km (0.107 R)
• M13: 12,166,496 km (0.048 R)
• M14: 12,721,055 km (0.106 R)
• M15: 14,298,564 km (0.097 R)
• M16: 16,410,886 km (0.083 R)
• M17: 17,035,757 km (0.11 R)
• M18: 18,003,057 km (0.069 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.6

Radius: 12.5

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.85 AU - 4.31 AU

Year: 4594 Days

Day: 14.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,785,577 km

• M1: 155,582 km (0.078 R)
• M2: 599,588 km (0.108 R)
• M3: 1,121,236 km (0.084 R)
• M4: 1,600,548 km (0.039 R)
• M5: 2,172,011 km (0.097 R)
• M6: 2,823,510 km (0.115 R)
• M7: 3,752,064 km (0.1 R)
• M8: 4,299,892 km (0.062 R)
• M9: 5,817,562 km (0.034 R)
• M10: 6,490,304 km (0.065 R)
• M11: 7,112,332 km (0.116 R)
• M12: 8,668,000 km (0.088 R)
• M13: 9,260,707 km (0.091 R)
• M14: 10,050,284 km (0.051 R)
• M15: 10,615,914 km (0.037 R)
• M16: 12,294,103 km (0.112 R)
• M17: 13,559,401 km (0.097 R)
• M18: 15,246,566 km (0.05 R)
• M19: 16,766,331 km (0.119 R)
• M20: 17,500,857 km (0.08 R)
• M21: 19,100,058 km (0.119 R)
• M22: 20,586,163 km (0.114 R)
• M23: 21,786,237 km (0.088 R)
• M24: 27,306,698 km (0.112 R)
• M25: 29,541,989 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376.7

Radius: 4.5

Gravity: 18.6 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.48 AU - 10.44 AU

Year: 19735 Days

Day: 18.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,785,577 km

• M1: 55,950 km (0.042 R)
• M2: 244,144 km (0.099 R)
• M3: 722,259 km (0.11 R)
• M4: 952,639 km (0.072 R)
• M5: 1,773,184 km (0.072 R)
• M6: 2,356,017 km (0.117 R)
• M7: 3,524,077 km (0.119 R)
• M8: 4,341,629 km (0.107 R)
• M9: 4,794,612 km (0.112 R)
• M10: 5,643,729 km (0.102 R)
• M11: 5,986,458 km (0.116 R)
• M12: 8,438,666 km (0.071 R)
• M13: 9,615,104 km (0.11 R)
• M14: 11,013,246 km (0.119 R)
• M15: 12,351,099 km (0.12 R)
• M16: 13,124,670 km (0.053 R)
• M17: 13,590,518 km (0.098 R)
• M18: 14,484,963 km (0.07 R)
• M19: 14,625,885 km (0.102 R)
• M20: 18,538,916 km (0.089 R)
• M21: 20,958,213 km (0.114 R)
• M22: 23,579,766 km (0.041 R)
• M23: 25,786,933 km (0.103 R)
• M24: 27,153,809 km (0.095 R)
• M25: 28,018,484 km (0.104 R)
• M26: 32,983,189 km (0.039 R)
• M27: 35,224,763 km (0.073 R)
• M28: 36,905,346 km (0.07 R)
• M29: 37,300,583 km (0.1 R)
• M30: 44,014,985 km (0.116 R)
• M31: 46,727,194 km (0.1 R)
• M32: 48,438,295 km (0.118 R)
• M33: 49,388,989 km (0.104 R)
• M34: 54,329,758 km (0.1 R)
• M35: 54,841,233 km (0.113 R)
• M36: 55,873,758 km (0.112 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: 309 - 19,719 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit