🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.9

Radius: 14

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.79 AU - 0.81 AU

Year: 469 Days

Day: 8 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 75,047,376 km

• M1: 174,132 km (0.092 R)
• M2: 824,135 km (0.079 R)
• M3: 1,577,958 km (0.093 R)
• M4: 2,067,592 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.8

Radius: 13.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.88 AU - 1.08 AU

Year: 636 Days

Day: 8.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,047,376 km

• M1: 171,738 km (0.087 R)
• M2: 660,325 km (0.104 R)
• M3: 1,261,260 km (0.041 R)
• M4: 1,876,107 km (0.109 R)
• M5: 2,430,965 km (0.066 R)
• M6: 3,231,464 km (0.066 R)
• M7: 4,262,642 km (0.085 R)
• M8: 4,755,567 km (0.062 R)
• M9: 5,594,661 km (0.113 R)
• M10: 6,167,621 km (0.095 R)
• M11: 7,254,150 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 8

Gravity: 14.4 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.93 AU - 1.35 AU

Year: 798 Days

Day: 10 Hours

Environment

Temp: -161 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,047,376 km

• M1: 99,483 km (0.059 R)
• M2: 548,875 km (0.119 R)
• M3: 819,048 km (0.104 R)
• M4: 1,235,230 km (0.118 R)
• M5: 1,671,756 km (0.085 R)
• M6: 2,124,888 km (0.108 R)
• M7: 2,693,659 km (0.075 R)
• M8: 3,086,653 km (0.063 R)
• M9: 3,402,604 km (0.025 R)
• M10: 4,131,893 km (0.057 R)
• M11: 4,620,779 km (0.098 R)
• M12: 5,593,165 km (0.083 R)
• M13: 5,939,035 km (0.026 R)
• M14: 6,763,769 km (0.101 R)
• M15: 7,540,181 km (0.118 R)
• M16: 8,348,459 km (0.061 R)
• M17: 8,639,277 km (0.075 R)
• M18: 9,467,002 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564

Radius: 9.3

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.41 AU - 1.65 AU

Year: 1241 Days

Day: 11.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,047,376 km

• M1: 117,883 km (0.102 R)
• M2: 878,289 km (0.043 R)
• M3: 1,490,444 km (0.08 R)
• M4: 1,829,133 km (0.092 R)
• M5: 2,962,187 km (0.041 R)
• M6: 4,654,139 km (0.114 R)
• M7: 5,996,032 km (0.08 R)
• M8: 6,419,544 km (0.119 R)
• M9: 8,128,251 km (0.096 R)
• M10: 9,131,005 km (0.085 R)
• M11: 9,783,252 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.9

Radius: 9.1

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.48 AU - 3.68 AU

Year: 4444 Days

Day: 12.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 88.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,047,376 km

• M1: 113,246 km (0.12 R)
• M2: 398,828 km (0.116 R)
• M3: 1,357,451 km (0.047 R)
• M4: 3,539,785 km (0.094 R)
• M5: 4,312,607 km (0.076 R)
• M6: 5,410,955 km (0.062 R)
• M7: 9,491,686 km (0.093 R)
• M8: 12,459,857 km (0.111 R)
• M9: 14,878,256 km (0.086 R)
• M10: 16,111,242 km (0.117 R)
• M11: 19,818,277 km (0.061 R)
• M12: 22,946,219 km (0.075 R)
• M13: 26,069,673 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.3

Radius: 9

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.2 AU - 5.26 AU

Year: 6748 Days

Day: 6.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,047,376 km

• M1: 112,498 km (0.082 R)
• M2: 471,233 km (0.083 R)
• M3: 922,570 km (0.108 R)
• M4: 2,640,103 km (0.069 R)
• M5: 4,550,019 km (0.08 R)
• M6: 5,165,764 km (0.082 R)
• M7: 5,463,613 km (0.096 R)
• M8: 6,701,685 km (0.072 R)
• M9: 7,238,592 km (0.041 R)
• M10: 7,688,583 km (0.087 R)
• M11: 10,039,962 km (0.078 R)
• M12: 13,831,370 km (0.12 R)
• M13: 19,899,060 km (0.094 R)
• M14: 24,916,273 km (0.11 R)
• M15: 28,723,838 km (0.087 R)
• M16: 31,401,491 km (0.079 R)
• M17: 34,555,463 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137

Radius: 4.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.89 AU - 8.09 AU

Year: 10846 Days

Day: 15.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,047,376 km

• M1: 71,059 km (0.094 R)
• M2: 338,390 km (0.06 R)
• M3: 759,060 km (0.106 R)
• M4: 957,875 km (0.1 R)
• M5: 2,525,362 km (0.092 R)
• M6: 3,107,297 km (0.108 R)
• M7: 4,383,068 km (0.106 R)
• M8: 4,762,747 km (0.091 R)
• M9: 5,136,592 km (0.055 R)
• M10: 6,250,049 km (0.077 R)
• M11: 9,594,160 km (0.103 R)
• M12: 10,189,709 km (0.068 R)
• M13: 11,690,924 km (0.079 R)
• M14: 22,757,127 km (0.087 R)
• M15: 23,357,015 km (0.118 R)
• M16: 27,769,554 km (0.095 R)
• M17: 28,025,067 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.4

Radius: 3.1

Gravity: 78.5 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.77 AU - 8.49 AU

Year: 13826 Days

Day: 22.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,047,376 km

• M1: 38,596 km (0.102 R)
• M2: 182,958 km (0.12 R)
• M3: 314,305 km (0.062 R)
• M4: 500,854 km (0.117 R)
• M5: 728,542 km (0.062 R)
• M6: 1,080,695 km (0.083 R)
• M7: 1,357,601 km (0.048 R)
• M8: 1,474,736 km (0.097 R)
• M9: 1,797,718 km (0.114 R)
• M10: 2,012,839 km (0.116 R)
• M11: 2,430,367 km (0.077 R)
• M12: 2,855,524 km (0.049 R)
• M13: 3,407,391 km (0.052 R)
• M14: 3,997,405 km (0.117 R)
• M15: 4,147,302 km (0.109 R)
• M16: 5,057,306 km (0.098 R)
• M17: 7,129,685 km (0.051 R)
• M18: 7,484,980 km (0.115 R)
• M19: 8,922,466 km (0.032 R)
• M20: 9,439,925 km (0.107 R)
• M21: 10,820,414 km (0.113 R)
• M22: 14,529,394 km (0.065 R)
• M23: 16,284,027 km (0.108 R)
• M24: 16,821,233 km (0.102 R)
• M25: 16,976,965 km (0.062 R)
• M26: 17,609,016 km (0.061 R)
• M27: 19,428,275 km (0.074 R)
• M28: 23,049,442 km (0.037 R)
• M29: 26,043,045 km (0.119 R)
• M30: 33,889,453 km (0.092 R)
• M31: 35,016,374 km (0.025 R)
• M32: 36,167,978 km (0.116 R)
• M33: 36,427,231 km (0.119 R)
• M34: 37,080,974 km (0.106 R)
• M35: 39,088,876 km (0.083 R)
• M36: 41,592,546 km (0.061 R)
• M37: 61,065,252 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.5

Radius: 4.2

Gravity: 50.77 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.15 AU - 9.96 AU

Year: 17860 Days

Day: 23.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,047,376 km

• M1: 52,359 km (0.086 R)
• M2: 424,409 km (0.058 R)
• M3: 572,810 km (0.071 R)
• M4: 1,214,136 km (0.075 R)
• M5: 1,361,041 km (0.087 R)
• M6: 1,569,730 km (0.117 R)
• M7: 1,762,861 km (0.1 R)
• M8: 2,154,808 km (0.041 R)
• M9: 3,443,593 km (0.111 R)
• M10: 3,832,249 km (0.092 R)
• M11: 5,023,646 km (0.071 R)
• M12: 6,846,347 km (0.071 R)
• M13: 7,172,021 km (0.079 R)
• M14: 7,754,256 km (0.098 R)
• M15: 10,219,479 km (0.07 R)
• M16: 11,336,826 km (0.077 R)
• M17: 11,595,630 km (0.05 R)
• M18: 21,030,917 km (0.028 R)
• M19: 21,225,694 km (0.063 R)
• M20: 21,917,135 km (0.072 R)
• M21: 23,975,452 km (0.08 R)
• M22: 25,823,285 km (0.119 R)
• M23: 27,414,558 km (0.119 R)
• M24: 28,352,536 km (0.081 R)
• M25: 29,922,267 km (0.082 R)
• M26: 32,839,575 km (0.06 R)
• M27: 33,365,561 km (0.077 R)
• M28: 36,219,440 km (0.119 R)
• M29: 37,633,888 km (0.108 R)
• M30: 39,527,198 km (0.1 R)
• M31: 42,407,256 km (0.062 R)
• M32: 44,777,335 km (0.091 R)
• M33: 48,921,047 km (0.045 R)
• M34: 51,880,242 km (0.098 R)
• M35: 61,668,581 km (0.115 R)
• M36: 72,840,250 km (0.098 R)
• M37: 73,958,794 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766.9

Radius: 6.4

Gravity: 18.72 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 7.16 AU - 11.38 AU

Year: 18515 Days

Day: 22.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,047,376 km

• M1: 81,980 km (0.102 R)
• M2: 416,331 km (0.076 R)
• M3: 793,916 km (0.105 R)
• M4: 1,412,503 km (0.103 R)
• M5: 2,582,508 km (0.091 R)
• M6: 4,258,453 km (0.115 R)
• M7: 4,699,916 km (0.051 R)
• M8: 6,730,408 km (0.104 R)
• M9: 7,472,264 km (0.085 R)
• M10: 12,416,773 km (0.03 R)
• M11: 15,950,873 km (0.115 R)
• M12: 20,858,282 km (0.113 R)
• M13: 34,304,886 km (0.078 R)
• M14: 35,519,022 km (0.064 R)
• M15: 38,896,494 km (0.067 R)
• M16: 42,328,418 km (0.105 R)
• M17: 44,672,168 km (0.1 R)
• M18: 44,991,111 km (0.072 R)
• M19: 66,199,302 km (0.047 R)
• M20: 68,500,715 km (0.096 R)
• M21: 72,161,525 km (0.056 R)
• M22: 75,047,417 km (0.11 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: 357 - 15,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit