🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694

Radius: 8.1

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.64 AU - 0.68 AU

Year: 364 Days

Day: 10.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,839,821 km

• M1: 100,679 km (0.091 R)
• M2: 427,551 km (0.057 R)
• M3: 788,381 km (0.067 R)
• M4: 1,112,111 km (0.093 R)
• M5: 1,409,212 km (0.1 R)
• M6: 1,680,882 km (0.095 R)
• M7: 1,979,629 km (0.106 R)
• M8: 2,287,651 km (0.091 R)
• M9: 2,886,192 km (0.101 R)
• M10: 3,151,279 km (0.099 R)
• M11: 3,479,048 km (0.054 R)
• M12: 3,779,740 km (0.087 R)
• M13: 4,283,735 km (0.076 R)
• M14: 4,545,083 km (0.084 R)
• M15: 5,099,941 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111

Radius: 8.7

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.68 AU - 1.1 AU

Year: 569 Days

Day: 7.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,839,821 km

• M1: 108,159 km (0.106 R)
• M2: 516,262 km (0.078 R)
• M3: 845,527 km (0.07 R)
• M4: 1,348,774 km (0.071 R)
• M5: 1,726,359 km (0.065 R)
• M6: 1,997,431 km (0.069 R)
• M7: 2,392,818 km (0.061 R)
• M8: 2,867,492 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641

Radius: 12.5

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.17 AU - 1.83 AU

Year: 1246 Days

Day: 13.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,839,821 km

• M1: 155,432 km (0.088 R)
• M2: 850,613 km (0.04 R)
• M3: 1,315,863 km (0.075 R)
• M4: 1,932,655 km (0.111 R)
• M5: 3,252,258 km (0.102 R)
• M6: 3,688,934 km (0.11 R)
• M7: 4,663,414 km (0.078 R)
• M8: 9,200,718 km (0.066 R)
• M9: 10,365,936 km (0.114 R)
• M10: 11,661,453 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.4

Radius: 10.3

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.96 AU - 4.64 AU

Year: 6048 Days

Day: 13.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,839,821 km

• M1: 128,056 km (0.119 R)
• M2: 488,138 km (0.045 R)
• M3: 1,016,667 km (0.118 R)
• M4: 2,080,458 km (0.069 R)
• M5: 2,800,023 km (0.054 R)
• M6: 3,415,918 km (0.095 R)
• M7: 4,836,350 km (0.11 R)
• M8: 6,001,418 km (0.04 R)
• M9: 8,202,002 km (0.09 R)
• M10: 9,334,608 km (0.051 R)
• M11: 10,706,720 km (0.115 R)
• M12: 11,224,627 km (0.1 R)
• M13: 12,670,341 km (0.099 R)
• M14: 13,682,520 km (0.118 R)
• M15: 14,012,982 km (0.06 R)
• M16: 15,212,308 km (0.065 R)
• M17: 16,790,416 km (0.037 R)
• M18: 19,427,228 km (0.052 R)
• M19: 25,258,404 km (0.088 R)
• M20: 26,686,914 km (0.105 R)
• M21: 27,991,407 km (0.038 R)
• M22: 28,884,506 km (0.089 R)
• M23: 30,446,009 km (0.069 R)
• M24: 31,295,127 km (0.08 R)
• M25: 32,941,900 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.7

Radius: 14.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.68 AU - 4.94 AU

Year: 6069 Days

Day: 12.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,839,821 km

• M1: 182,958 km (0.112 R)
• M2: 686,205 km (0.105 R)
• M3: 1,946,717 km (0.085 R)
• M4: 2,497,237 km (0.101 R)
• M5: 3,602,317 km (0.099 R)
• M6: 4,466,544 km (0.068 R)
• M7: 4,935,683 km (0.071 R)
• M8: 5,659,437 km (0.068 R)
• M9: 7,121,307 km (0.11 R)
• M10: 7,765,027 km (0.074 R)
• M11: 9,687,061 km (0.042 R)
• M12: 10,564,452 km (0.115 R)
• M13: 11,769,762 km (0.084 R)
• M14: 13,619,241 km (0.112 R)
• M15: 19,532,994 km (0.066 R)
• M16: 23,342,055 km (0.063 R)
• M17: 25,072,603 km (0.05 R)
• M18: 26,726,258 km (0.047 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.8

Radius: 5.8

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.51 AU - 8.47 AU

Year: 13903 Days

Day: 17.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,839,821 km

• M1: 72,705 km (0.102 R)
• M2: 276,606 km (0.045 R)
• M3: 468,541 km (0.05 R)
• M4: 652,247 km (0.108 R)
• M5: 913,445 km (0.078 R)
• M6: 2,429,320 km (0.05 R)
• M7: 3,152,925 km (0.081 R)
• M8: 4,984,751 km (0.097 R)
• M9: 5,203,313 km (0.116 R)
• M10: 5,526,594 km (0.093 R)
• M11: 5,760,864 km (0.095 R)
• M12: 6,430,165 km (0.102 R)
• M13: 6,917,106 km (0.08 R)
• M14: 7,672,576 km (0.067 R)
• M15: 9,583,240 km (0.111 R)
• M16: 10,777,180 km (0.088 R)
• M17: 11,517,540 km (0.057 R)
• M18: 12,748,880 km (0.119 R)
• M19: 13,336,501 km (0.104 R)
• M20: 14,756,633 km (0.111 R)
• M21: 15,868,893 km (0.06 R)
• M22: 17,247,887 km (0.085 R)
• M23: 18,481,171 km (0.11 R)
• M24: 19,309,794 km (0.091 R)
• M25: 20,084,412 km (0.087 R)
• M26: 28,902,608 km (0.077 R)
• M27: 31,372,618 km (0.081 R)
• M28: 36,027,206 km (0.116 R)
• M29: 37,081,273 km (0.095 R)
• M30: 37,437,017 km (0.097 R)
• M31: 41,630,694 km (0.058 R)
• M32: 43,444,867 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 243

Radius: 4.4

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.13 AU - 9.51 AU

Year: 16277 Days

Day: 18.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,839,821 km

• M1: 71,508 km (0.051 R)
• M2: 533,915 km (0.051 R)
• M3: 695,032 km (0.028 R)
• M4: 1,051,523 km (0.091 R)
• M5: 1,346,381 km (0.109 R)
• M6: 2,815,282 km (0.03 R)
• M7: 3,479,796 km (0.083 R)
• M8: 4,328,315 km (0.113 R)
• M9: 4,739,709 km (0.117 R)
• M10: 5,049,078 km (0.108 R)
• M11: 5,438,182 km (0.093 R)
• M12: 7,521,781 km (0.089 R)
• M13: 7,814,843 km (0.071 R)
• M14: 9,347,773 km (0.098 R)
• M15: 10,033,380 km (0.096 R)
• M16: 10,647,329 km (0.119 R)
• M17: 11,340,267 km (0.077 R)
• M18: 14,413,904 km (0.074 R)
• M19: 15,662,747 km (0.092 R)
• M20: 16,071,748 km (0.071 R)
• M21: 20,157,864 km (0.096 R)
• M22: 20,804,576 km (0.092 R)
• M23: 23,797,132 km (0.026 R)
• M24: 24,066,258 km (0.06 R)
• M25: 25,723,803 km (0.046 R)
• M26: 26,007,291 km (0.072 R)
• M27: 27,357,711 km (0.08 R)
• M28: 27,653,017 km (0.094 R)
• M29: 29,780,299 km (0.084 R)
• M30: 30,302,395 km (0.105 R)
• M31: 31,257,428 km (0.119 R)
• M32: 32,561,921 km (0.072 R)
• M33: 33,563,778 km (0.116 R)
• M34: 34,815,912 km (0.035 R)
• M35: 36,692,468 km (0.078 R)
• M36: 41,287,816 km (0.068 R)
• M37: 43,255,177 km (0.037 R)
• M38: 43,790,139 km (0.077 R)
• M39: 44,600,810 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.9

Radius: 6.8

Gravity: 15.07 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.96 AU - 11.22 AU

Year: 21738 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,839,821 km

• M1: 97,239 km (0.041 R)
• M2: 791,074 km (0.062 R)
• M3: 1,302,399 km (0.083 R)
• M4: 1,783,655 km (0.034 R)
• M5: 2,117,408 km (0.108 R)
• M6: 2,492,151 km (0.1 R)
• M7: 3,095,778 km (0.105 R)
• M8: 3,761,638 km (0.099 R)
• M9: 6,690,914 km (0.053 R)
• M10: 8,475,019 km (0.05 R)
• M11: 9,304,240 km (0.109 R)
• M12: 10,005,704 km (0.106 R)
• M13: 13,383,923 km (0.087 R)
• M14: 14,583,249 km (0.116 R)
• M15: 14,893,964 km (0.112 R)
• M16: 16,347,008 km (0.116 R)
• M17: 18,338,006 km (0.083 R)
• M18: 18,700,033 km (0.086 R)
• M19: 22,278,414 km (0.097 R)
• M20: 25,383,468 km (0.058 R)
• M21: 31,912,068 km (0.116 R)
• M22: 32,173,416 km (0.077 R)
• M23: 41,152,280 km (0.092 R)
• M24: 41,928,992 km (0.064 R)
• M25: 51,666,916 km (0.071 R)
• M26: 52,752,697 km (0.113 R)
• M27: 57,441,543 km (0.087 R)
• M28: 59,787,687 km (0.114 R)
• M29: 65,088,538 km (0.068 R)
• M30: 65,930,923 km (0.098 R)
• M31: 74,758,394 km (0.146 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.2

Radius: 4.5

Gravity: 24.11 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.9 AU - 13.12 AU

Year: 23110 Days

Day: 15.1 Hours

Environment

Temp: -246 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,839,821 km

• M1: 56,548 km (0.114 R)
• M2: 398,080 km (0.072 R)
• M3: 576,999 km (0.079 R)
• M4: 1,196,633 km (0.079 R)
• M5: 1,860,998 km (0.118 R)
• M6: 2,095,417 km (0.1 R)
• M7: 2,842,360 km (0.11 R)
• M8: 6,169,267 km (0.087 R)
• M9: 8,854,249 km (0.068 R)
• M10: 12,909,847 km (0.034 R)
• M11: 24,304,119 km (0.083 R)
• M12: 34,732,138 km (0.116 R)
• M13: 38,058,895 km (0.11 R)
• M14: 43,281,806 km (0.086 R)
• M15: 46,144,810 km (0.109 R)
• M16: 63,568,324 km (0.09 R)
• M17: 69,370,029 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 16,302 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit