🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.51 AU - 0.63 AU

Year: 278 Days

Day: 26.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.8

Radius: 8.8

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.77 AU - 1.21 AU

Year: 636 Days

Day: 7.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,986,949 km

• M1: 112,348 km (0.107 R)
• M2: 456,124 km (0.097 R)
• M3: 891,903 km (0.107 R)
• M4: 1,389,166 km (0.071 R)
• M5: 2,079,410 km (0.08 R)
• M6: 2,713,705 km (0.092 R)
• M7: 3,127,643 km (0.036 R)
• M8: 3,672,029 km (0.097 R)
• M9: 5,775,375 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.7

Radius: 14.9

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.29 AU - 1.79 AU

Year: 1234 Days

Day: 6.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,986,949 km

• M1: 185,352 km (0.1 R)
• M2: 691,591 km (0.089 R)
• M3: 1,304,493 km (0.101 R)
• M4: 1,858,454 km (0.097 R)
• M5: 2,581,610 km (0.098 R)
• M6: 3,488,024 km (0.092 R)
• M7: 5,347,974 km (0.078 R)
• M8: 5,912,407 km (0.078 R)
• M9: 6,800,719 km (0.044 R)
• M10: 7,800,781 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.7

Radius: 13.8

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.7 AU - 3.78 AU

Year: 3766 Days

Day: 8.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,986,949 km

• M1: 171,589 km (0.118 R)
• M2: 610,808 km (0.111 R)
• M3: 1,101,190 km (0.038 R)
• M4: 1,618,350 km (0.108 R)
• M5: 2,108,582 km (0.036 R)
• M6: 2,715,650 km (0.072 R)
• M7: 3,202,741 km (0.097 R)
• M8: 3,748,324 km (0.096 R)
• M9: 4,523,690 km (0.043 R)
• M10: 6,837,371 km (0.027 R)
• M11: 7,367,695 km (0.096 R)
• M12: 9,811,376 km (0.072 R)
• M13: 13,457,376 km (0.098 R)
• M14: 14,997,037 km (0.107 R)
• M15: 16,710,531 km (0.117 R)
• M16: 17,553,365 km (0.1 R)
• M17: 20,118,221 km (0.113 R)
• M18: 21,141,470 km (0.103 R)
• M19: 22,342,891 km (0.057 R)
• M20: 23,663,990 km (0.068 R)
• M21: 25,980,812 km (0.059 R)
• M22: 27,689,967 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695

Radius: 14.4

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.35 AU - 5.79 AU

Year: 8488 Days

Day: 6.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,986,949 km

• M1: 182,061 km (0.076 R)
• M2: 811,419 km (0.104 R)
• M3: 1,460,075 km (0.073 R)
• M4: 3,056,733 km (0.117 R)
• M5: 4,419,271 km (0.119 R)
• M6: 5,145,568 km (0.083 R)
• M7: 5,950,255 km (0.103 R)
• M8: 6,912,319 km (0.116 R)
• M9: 8,142,163 km (0.105 R)
• M10: 9,606,876 km (0.044 R)
• M11: 11,293,293 km (0.082 R)
• M12: 13,639,735 km (0.066 R)
• M13: 14,366,183 km (0.107 R)
• M14: 15,764,773 km (0.116 R)
• M15: 16,633,039 km (0.114 R)
• M16: 20,272,007 km (0.058 R)
• M17: 23,115,265 km (0.089 R)
• M18: 26,030,628 km (0.115 R)
• M19: 29,183,104 km (0.051 R)
• M20: 29,782,393 km (0.066 R)
• M21: 33,443,950 km (0.108 R)
• M22: 33,990,581 km (0.103 R)
• M23: 37,278,742 km (0.049 R)
• M24: 37,866,363 km (0.114 R)
• M25: 39,180,879 km (0.031 R)
• M26: 42,792,321 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.3

Radius: 6.8

Gravity: 16.12 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.61 AU - 6.47 AU

Year: 9585 Days

Day: 16.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 50,986,949 km

• M1: 84,523 km (0.102 R)
• M2: 345,421 km (0.111 R)
• M3: 573,409 km (0.069 R)
• M4: 1,057,956 km (0.118 R)
• M5: 2,118,156 km (0.054 R)
• M6: 2,391,771 km (0.08 R)
• M7: 2,835,927 km (0.11 R)
• M8: 3,333,789 km (0.109 R)
• M9: 3,679,808 km (0.094 R)
• M10: 3,995,310 km (0.12 R)
• M11: 5,542,452 km (0.088 R)
• M12: 6,172,857 km (0.084 R)
• M13: 6,581,110 km (0.034 R)
• M14: 8,897,633 km (0.106 R)
• M15: 9,370,511 km (0.049 R)
• M16: 10,263,910 km (0.107 R)
• M17: 11,104,351 km (0.096 R)
• M18: 14,026,895 km (0.085 R)
• M19: 16,634,834 km (0.118 R)
• M20: 17,279,601 km (0.055 R)
• M21: 17,940,824 km (0.104 R)
• M22: 18,164,921 km (0.105 R)
• M23: 18,466,810 km (0.096 R)
• M24: 23,226,715 km (0.076 R)
• M25: 27,836,424 km (0.12 R)
• M26: 32,575,385 km (0.092 R)
• M27: 38,317,550 km (0.084 R)
• M28: 40,074,128 km (0.114 R)
• M29: 40,972,164 km (0.07 R)
• M30: 42,941,919 km (0.114 R)
• M31: 43,882,291 km (0.119 R)
• M32: 45,387,695 km (0.115 R)
• M33: 45,943,600 km (0.087 R)
• M34: 46,785,836 km (0.115 R)
• M35: 47,781,410 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.5

Radius: 3.1

Gravity: 68.31 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.17 AU - 8.39 AU

Year: 11399 Days

Day: 24.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,986,949 km

• M1: 38,596 km (0.1 R)
• M2: 162,613 km (0.107 R)
• M3: 515,813 km (0.066 R)
• M4: 787,184 km (0.086 R)
• M5: 997,519 km (0.067 R)
• M6: 1,244,056 km (0.081 R)
• M7: 1,603,540 km (0.098 R)
• M8: 1,890,468 km (0.106 R)
• M9: 3,214,409 km (0.089 R)
• M10: 3,361,315 km (0.114 R)
• M11: 5,737,378 km (0.099 R)
• M12: 5,990,348 km (0.116 R)
• M13: 7,841,322 km (0.1 R)
• M14: 10,144,830 km (0.082 R)
• M15: 10,621,748 km (0.053 R)
• M16: 14,255,480 km (0.092 R)
• M17: 18,403,979 km (0.103 R)
• M18: 18,874,165 km (0.103 R)
• M19: 19,513,546 km (0.114 R)
• M20: 20,583,171 km (0.056 R)
• M21: 21,604,476 km (0.058 R)
• M22: 23,289,995 km (0.072 R)
• M23: 23,563,909 km (0.115 R)
• M24: 25,348,611 km (0.073 R)
• M25: 27,934,111 km (0.069 R)
• M26: 28,763,781 km (0.117 R)
• M27: 35,757,033 km (0.096 R)
• M28: 39,384,631 km (0.12 R)
• M29: 39,513,884 km (0.072 R)
• M30: 46,489,483 km (0.086 R)
• M31: 46,778,656 km (0.109 R)
• M32: 48,836,075 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 736.2

Radius: 6.4

Gravity: 17.97 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.73 AU - 7.75 AU

Year: 12578 Days

Day: 20.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,986,949 km

• M1: 80,484 km (0.105 R)
• M2: 616,343 km (0.116 R)
• M3: 859,589 km (0.069 R)
• M4: 2,529,102 km (0.109 R)
• M5: 2,767,411 km (0.042 R)
• M6: 3,547,414 km (0.114 R)
• M7: 5,898,345 km (0.119 R)
• M8: 6,241,223 km (0.068 R)
• M9: 9,846,532 km (0.046 R)
• M10: 14,639,049 km (0.079 R)
• M11: 20,701,054 km (0.109 R)
• M12: 23,798,628 km (0.066 R)
• M13: 26,983,716 km (0.119 R)
• M14: 30,105,823 km (0.106 R)
• M15: 34,184,460 km (0.115 R)
• M16: 35,538,620 km (0.113 R)
• M17: 38,222,555 km (0.054 R)
• M18: 43,559,758 km (0.114 R)
• M19: 45,443,644 km (0.111 R)
• M20: 55,851,318 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521.1

Radius: 4

Gravity: 32.57 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.76 AU - 8.72 AU

Year: 12578 Days

Day: 23.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,986,949 km

• M1: 50,714 km (0.033 R)
• M2: 377,585 km (0.055 R)
• M3: 584,778 km (0.059 R)
• M4: 727,794 km (0.113 R)
• M5: 1,155,943 km (0.107 R)
• M6: 1,317,957 km (0.087 R)
• M7: 1,830,779 km (0.101 R)
• M8: 1,964,818 km (0.07 R)
• M9: 2,141,344 km (0.029 R)
• M10: 2,466,121 km (0.107 R)
• M11: 4,478,212 km (0.076 R)
• M12: 4,753,622 km (0.097 R)
• M13: 7,088,695 km (0.069 R)
• M14: 7,937,513 km (0.098 R)
• M15: 10,942,486 km (0.105 R)
• M16: 13,277,858 km (0.104 R)
• M17: 13,845,582 km (0.09 R)
• M18: 14,298,265 km (0.06 R)
• M19: 22,498,323 km (0.066 R)
• M20: 22,943,676 km (0.114 R)
• M21: 23,485,968 km (0.12 R)
• M22: 28,134,872 km (0.112 R)
• M23: 29,491,874 km (0.09 R)
• M24: 30,565,089 km (0.067 R)
• M25: 34,056,853 km (0.11 R)
• M26: 37,805,327 km (0.111 R)
• M27: 40,757,641 km (0.081 R)
• M28: 40,889,436 km (0.078 R)
• M29: 48,728,963 km (0.108 R)
• M30: 49,324,512 km (0.115 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 16,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit