🌌 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: 250.7

Radius: 10.9

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.72 AU - 0.9 AU

Year: 494 Days

Day: 6.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 31,837,193 km

• M1: 136,732 km (0.119 R)
• M2: 208,091 km (0.078 R)
• M3: 321,935 km (0.106 R)
• M4: 403,914 km (0.06 R)
• M5: 477,965 km (0.094 R)
• M6: 576,251 km (0.049 R)
• M7: 695,929 km (0.091 R)
• M8: 817,702 km (0.092 R)
• M9: 898,186 km (0.073 R)
• M10: 1,012,628 km (0.064 R)
• M11: 1,128,267 km (0.085 R)
• M12: 1,227,451 km (0.11 R)
• M13: 1,351,467 km (0.079 R)
• M14: 1,484,460 km (0.117 R)
• M15: 1,557,164 km (0.095 R)
• M16: 1,715,888 km (0.084 R)
• M17: 1,836,164 km (0.1 R)
• M18: 1,929,513 km (0.103 R)
• M19: 1,999,226 km (0.064 R)
• M20: 2,146,729 km (0.094 R)
• M21: 2,229,607 km (0.116 R)
• M22: 2,350,781 km (0.091 R)
• M23: 2,501,276 km (0.098 R)
• M24: 2,588,791 km (0.092 R)
• M25: 2,761,277 km (0.037 R)
• M26: 2,886,042 km (0.106 R)
• M27: 3,012,602 km (0.046 R)
• M28: 3,200,198 km (0.075 R)
• M29: 3,295,491 km (0.106 R)
• M30: 3,415,918 km (0.091 R)
• M31: 3,507,322 km (0.07 R)
• M32: 3,580,924 km (0.034 R)
• M33: 3,692,375 km (0.028 R)
• M34: 3,830,304 km (0.095 R)
• M35: 4,065,921 km (0.083 R)
• M36: 4,143,412 km (0.066 R)
• M37: 4,234,517 km (0.114 R)
• M38: 4,306,474 km (0.109 R)
• M39: 4,451,733 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.5

Radius: 12.6

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.1 AU - 1.42 AU

Year: 959 Days

Day: 8.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 31,837,193 km

• M1: 162,613 km (0.078 R)
• M2: 264,639 km (0.078 R)
• M3: 360,531 km (0.082 R)
• M4: 462,108 km (0.091 R)
• M5: 553,662 km (0.076 R)
• M6: 643,121 km (0.083 R)
• M7: 759,209 km (0.038 R)
• M8: 866,620 km (0.116 R)
• M9: 1,003,054 km (0.12 R)
• M10: 1,134,999 km (0.091 R)
• M11: 1,215,931 km (0.095 R)
• M12: 1,324,839 km (0.096 R)
• M13: 1,553,275 km (0.031 R)
• M14: 1,700,928 km (0.028 R)
• M15: 1,802,056 km (0.12 R)
• M16: 1,942,828 km (0.044 R)
• M17: 2,172,610 km (0.092 R)
• M18: 2,370,977 km (0.049 R)
• M19: 2,460,287 km (0.118 R)
• M20: 2,735,098 km (0.118 R)
• M21: 2,828,896 km (0.063 R)
• M22: 3,090,542 km (0.084 R)
• M23: 3,260,336 km (0.059 R)
• M24: 3,451,672 km (0.079 R)
• M25: 3,826,564 km (0.111 R)
• M26: 3,970,627 km (0.079 R)
• M27: 4,175,426 km (0.107 R)
• M28: 4,284,034 km (0.096 R)
• M29: 4,403,713 km (0.107 R)
• M30: 4,728,190 km (0.109 R)
• M31: 5,240,264 km (0.114 R)
• M32: 5,368,469 km (0.095 R)
• M33: 5,519,264 km (0.076 R)
• M34: 5,869,472 km (0.1 R)
• M35: 5,980,324 km (0.039 R)
• M36: 6,092,074 km (0.106 R)
• M37: 6,238,231 km (0.051 R)
• M38: 6,602,951 km (0.118 R)
• M39: 6,916,358 km (0.104 R)
• M40: 7,021,825 km (0.109 R)
• M41: 7,139,708 km (0.11 R)
• M42: 7,222,585 km (0.112 R)
• M43: 7,413,322 km (0.103 R)
• M44: 7,521,482 km (0.085 R)
• M45: 7,642,058 km (0.047 R)
• M46: 7,739,147 km (0.098 R)
• M47: 7,824,268 km (0.09 R)
• M48: 8,180,760 km (0.068 R)
• M49: 8,479,806 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.3

Radius: 10.3

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.25 AU - 1.29 AU

Year: 971 Days

Day: 5.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 31,837,193 km

• M1: 128,355 km (0.112 R)
• M2: 192,981 km (0.09 R)
• M3: 268,678 km (0.059 R)
• M4: 403,765 km (0.079 R)
• M5: 503,546 km (0.083 R)
• M6: 598,990 km (0.112 R)
• M7: 671,246 km (0.103 R)
• M8: 772,972 km (0.097 R)
• M9: 874,848 km (0.05 R)
• M10: 1,004,550 km (0.047 R)
• M11: 1,215,034 km (0.109 R)
• M12: 1,309,580 km (0.117 R)
• M13: 1,374,206 km (0.083 R)
• M14: 1,615,807 km (0.049 R)
• M15: 1,685,519 km (0.081 R)
• M16: 1,784,703 km (0.078 R)
• M17: 1,937,292 km (0.078 R)
• M18: 2,019,122 km (0.036 R)
• M19: 2,178,444 km (0.103 R)
• M20: 2,429,320 km (0.1 R)
• M21: 2,599,113 km (0.086 R)
• M22: 2,722,831 km (0.071 R)
• M23: 2,798,079 km (0.109 R)
• M24: 2,933,465 km (0.101 R)
• M25: 3,019,334 km (0.07 R)
• M26: 3,158,310 km (0.076 R)
• M27: 3,308,357 km (0.054 R)
• M28: 3,397,816 km (0.069 R)
• M29: 3,469,923 km (0.091 R)
• M30: 3,819,682 km (0.071 R)
• M31: 3,904,205 km (0.037 R)
• M32: 3,970,327 km (0.101 R)
• M33: 4,036,899 km (0.088 R)
• M34: 4,483,448 km (0.108 R)
• M35: 4,712,782 km (0.096 R)
• M36: 4,925,510 km (0.089 R)
• M37: 5,235,028 km (0.06 R)
• M38: 5,371,012 km (0.089 R)
• M39: 5,582,693 km (0.066 R)
• M40: 5,668,114 km (0.084 R)
• M41: 5,764,904 km (0.12 R)
• M42: 5,851,222 km (0.037 R)
• M43: 5,981,671 km (0.047 R)
• M44: 6,101,948 km (0.118 R)
• M45: 6,201,131 km (0.103 R)
• M46: 6,512,893 km (0.103 R)
• M47: 6,704,677 km (0.082 R)
• M48: 6,784,263 km (0.073 R)
• M49: 6,875,518 km (0.119 R)
• M50: 7,024,817 km (0.077 R)
• M51: 7,140,306 km (0.12 R)
• M52: 7,408,386 km (0.106 R)
• M53: 7,608,697 km (0.09 R)
• M54: 8,159,666 km (0.12 R)
• M55: 8,232,520 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.1

Radius: 11.2

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.56 AU - 1.94 AU

Year: 1570 Days

Day: 9.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 31,837,193 km

• M1: 144,362 km (0.115 R)
• M2: 244,593 km (0.07 R)
• M3: 715,527 km (0.112 R)
• M4: 1,015,171 km (0.081 R)
• M5: 1,215,782 km (0.11 R)
• M6: 1,353,861 km (0.103 R)
• M7: 1,439,431 km (0.029 R)
• M8: 1,566,290 km (0.105 R)
• M9: 1,789,789 km (0.108 R)
• M10: 1,905,428 km (0.118 R)
• M11: 2,177,995 km (0.082 R)
• M12: 2,451,610 km (0.068 R)
• M13: 2,652,370 km (0.093 R)
• M14: 2,982,234 km (0.077 R)
• M15: 3,057,332 km (0.055 R)
• M16: 3,273,800 km (0.087 R)
• M17: 3,681,454 km (0.118 R)
• M18: 3,857,381 km (0.088 R)
• M19: 4,063,826 km (0.105 R)
• M20: 4,245,588 km (0.116 R)
• M21: 4,430,191 km (0.114 R)
• M22: 4,574,104 km (0.098 R)
• M23: 4,778,006 km (0.111 R)
• M24: 4,940,470 km (0.12 R)
• M25: 5,179,976 km (0.07 R)
• M26: 5,255,672 km (0.086 R)
• M27: 5,392,704 km (0.089 R)
• M28: 5,826,987 km (0.09 R)
• M29: 6,016,527 km (0.114 R)
• M30: 6,548,348 km (0.07 R)
• M31: 6,745,667 km (0.106 R)
• M32: 6,845,000 km (0.11 R)
• M33: 7,011,652 km (0.094 R)
• M34: 7,298,132 km (0.097 R)
• M35: 7,417,062 km (0.061 R)
• M36: 7,622,760 km (0.038 R)
• M37: 7,760,988 km (0.116 R)
• M38: 7,882,461 km (0.042 R)
• M39: 8,127,503 km (0.116 R)
• M40: 8,251,071 km (0.082 R)
• M41: 8,715,123 km (0.048 R)
• M42: 9,187,852 km (0.063 R)
• M43: 9,390,408 km (0.069 R)
• M44: 9,594,310 km (0.033 R)
• M45: 9,781,158 km (0.085 R)
• M46: 9,893,655 km (0.095 R)
• M47: 10,310,435 km (0.074 R)
• M48: 10,405,878 km (0.116 R)
• M49: 10,694,153 km (0.058 R)
• M50: 10,790,794 km (0.078 R)
• M51: 11,456,055 km (0.075 R)
• M52: 11,574,836 km (0.053 R)
• M53: 11,793,698 km (0.086 R)
• M54: 11,933,572 km (0.118 R)
• M55: 12,764,588 km (0.061 R)
• M56: 12,990,630 km (0.092 R)
• M57: 13,301,195 km (0.12 R)
• M58: 13,635,098 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.4

Radius: 8.3

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.98 AU - 2.4 AU

Year: 2198 Days

Day: 7.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 31,837,193 km

• M1: 127,158 km (0.117 R)
• M2: 191,186 km (0.1 R)
• M3: 407,953 km (0.12 R)
• M4: 474,524 km (0.032 R)
• M5: 707,000 km (0.076 R)
• M6: 1,057,807 km (0.094 R)
• M7: 1,153,549 km (0.107 R)
• M8: 1,292,526 km (0.037 R)
• M9: 1,374,505 km (0.042 R)
• M10: 1,458,430 km (0.12 R)
• M11: 1,686,716 km (0.035 R)
• M12: 1,926,521 km (0.098 R)
• M13: 2,325,499 km (0.068 R)
• M14: 2,464,176 km (0.074 R)
• M15: 2,592,830 km (0.115 R)
• M16: 2,937,354 km (0.079 R)
• M17: 3,019,035 km (0.114 R)
• M18: 3,087,700 km (0.077 R)
• M19: 3,184,639 km (0.109 R)
• M20: 3,254,502 km (0.065 R)
• M21: 3,568,059 km (0.116 R)
• M22: 3,816,990 km (0.107 R)
• M23: 4,393,989 km (0.058 R)
• M24: 4,724,600 km (0.11 R)
• M25: 4,965,602 km (0.09 R)
• M26: 5,210,793 km (0.1 R)
• M27: 5,309,976 km (0.118 R)
• M28: 5,376,398 km (0.108 R)
• M29: 6,441,834 km (0.048 R)
• M30: 6,530,545 km (0.062 R)
• M31: 6,745,218 km (0.06 R)
• M32: 6,799,223 km (0.1 R)
• M33: 6,853,378 km (0.117 R)
• M34: 7,236,647 km (0.075 R)
• M35: 7,384,450 km (0.109 R)
• M36: 7,664,348 km (0.057 R)
• M37: 7,909,838 km (0.099 R)
• M38: 8,100,426 km (0.106 R)
• M39: 8,505,537 km (0.053 R)
• M40: 10,149,767 km (0.074 R)
• M41: 10,733,348 km (0.081 R)
• M42: 10,880,852 km (0.089 R)
• M43: 10,986,767 km (0.081 R)
• M44: 11,114,224 km (0.116 R)
• M45: 11,284,915 km (0.116 R)
• M46: 11,564,215 km (0.12 R)
• M47: 11,758,841 km (0.11 R)
• M48: 12,151,536 km (0.092 R)
• M49: 12,327,313 km (0.043 R)
• M50: 12,393,585 km (0.062 R)
• M51: 12,548,419 km (0.11 R)
• M52: 12,614,990 km (0.094 R)
• M53: 12,949,640 km (0.056 R)
• M54: 13,309,723 km (0.093 R)
• M55: 13,400,379 km (0.088 R)
• M56: 14,017,021 km (0.108 R)
• M57: 14,201,475 km (0.096 R)
• M58: 15,396,463 km (0.04 R)
• M59: 15,491,458 km (0.099 R)
• M60: 15,610,687 km (0.095 R)
• M61: 15,897,766 km (0.098 R)
• M62: 16,018,042 km (0.058 R)
• M63: 16,186,789 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.2

Radius: 7.5

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.37 AU - 6.39 AU

Year: 9671 Days

Day: 15.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 31,837,193 km

• M1: 98,136 km (0.083 R)
• M2: 202,256 km (0.103 R)
• M3: 261,048 km (0.047 R)
• M4: 391,946 km (0.052 R)
• M5: 568,023 km (0.037 R)
• M6: 769,083 km (0.11 R)
• M7: 845,527 km (0.055 R)
• M8: 1,515,277 km (0.079 R)
• M9: 1,813,575 km (0.116 R)
• M10: 1,969,606 km (0.084 R)
• M11: 2,112,023 km (0.073 R)
• M12: 2,184,578 km (0.118 R)
• M13: 2,774,741 km (0.102 R)
• M14: 3,285,020 km (0.09 R)
• M15: 3,648,542 km (0.104 R)
• M16: 4,530,422 km (0.053 R)
• M17: 5,153,497 km (0.077 R)
• M18: 5,550,231 km (0.046 R)
• M19: 5,777,769 km (0.117 R)
• M20: 5,982,718 km (0.106 R)
• M21: 6,189,911 km (0.104 R)
• M22: 6,373,168 km (0.112 R)
• M23: 6,425,827 km (0.047 R)
• M24: 6,879,707 km (0.083 R)
• M25: 7,124,150 km (0.11 R)
• M26: 7,178,903 km (0.06 R)
• M27: 7,454,611 km (0.106 R)
• M28: 8,504,489 km (0.046 R)
• M29: 9,210,143 km (0.076 R)
• M30: 9,389,510 km (0.113 R)
• M31: 10,057,016 km (0.119 R)
• M32: 10,802,612 km (0.064 R)
• M33: 11,598,024 km (0.042 R)
• M34: 11,953,917 km (0.058 R)
• M35: 12,018,992 km (0.088 R)
• M36: 12,182,353 km (0.107 R)
• M37: 13,177,478 km (0.106 R)
• M38: 13,379,585 km (0.099 R)
• M39: 13,718,873 km (0.107 R)
• M40: 13,923,822 km (0.03 R)
• M41: 14,129,668 km (0.098 R)
• M42: 14,579,210 km (0.079 R)
• M43: 14,788,348 km (0.097 R)
• M44: 15,315,531 km (0.11 R)
• M45: 16,063,670 km (0.072 R)
• M46: 16,315,742 km (0.107 R)
• M47: 16,641,866 km (0.106 R)
• M48: 17,116,540 km (0.112 R)
• M49: 17,595,702 km (0.114 R)
• M50: 17,967,303 km (0.107 R)
• M51: 18,228,949 km (0.095 R)
• M52: 18,642,737 km (0.092 R)
• M53: 18,718,284 km (0.08 R)
• M54: 18,869,677 km (0.064 R)
• M55: 19,402,844 km (0.103 R)
• M56: 20,289,510 km (0.067 R)
• M57: 20,757,303 km (0.12 R)
• M58: 21,545,085 km (0.11 R)
• M59: 23,068,291 km (0.117 R)
• M60: 23,230,754 km (0.069 R)
• M61: 23,843,058 km (0.09 R)
• M62: 24,792,107 km (0.102 R)
• M63: 25,837,647 km (0.032 R)
• M64: 26,599,399 km (0.11 R)
• M65: 27,798,875 km (0.108 R)
• M66: 27,885,193 km (0.094 R)
• M67: 28,101,511 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.9

Radius: 3.3

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 6.47 AU - 7.93 AU

Year: 13104 Days

Day: 16.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 31,837,193 km

• M1: 117,883 km (0.072 R)
• M2: 182,061 km (0.053 R)
• M3: 668,104 km (0.073 R)
• M4: 707,299 km (0.094 R)
• M5: 856,897 km (0.066 R)
• M6: 913,893 km (0.07 R)
• M7: 1,169,556 km (0.108 R)
• M8: 1,600,697 km (0.103 R)
• M9: 1,635,703 km (0.057 R)
• M10: 1,851,423 km (0.105 R)
• M11: 2,289,446 km (0.104 R)
• M12: 2,509,803 km (0.111 R)
• M13: 2,737,043 km (0.12 R)
• M14: 2,757,986 km (0.089 R)
• M15: 2,906,387 km (0.119 R)
• M16: 3,122,856 km (0.086 R)
• M17: 3,277,390 km (0.099 R)
• M18: 3,802,927 km (0.116 R)
• M19: 3,826,265 km (0.109 R)
• M20: 4,015,506 km (0.104 R)
• M21: 4,135,334 km (0.108 R)
• M22: 5,032,323 km (0.055 R)
• M23: 5,058,054 km (0.113 R)
• M24: 5,291,875 km (0.115 R)
• M25: 5,608,873 km (0.113 R)
• M26: 5,877,850 km (0.068 R)
• M27: 6,206,217 km (0.049 R)
• M28: 6,233,743 km (0.117 R)
• M29: 6,261,419 km (0.105 R)
• M30: 6,624,792 km (0.03 R)
• M31: 6,909,028 km (0.099 R)
• M32: 6,937,601 km (0.094 R)
• M33: 7,197,154 km (0.085 R)
• M34: 7,313,541 km (0.077 R)
• M35: 7,342,712 km (0.096 R)
• M36: 8,726,642 km (0.091 R)
• M37: 8,944,157 km (0.118 R)
• M38: 8,975,274 km (0.068 R)
• M39: 9,511,582 km (0.075 R)
• M40: 9,607,325 km (0.107 R)
• M41: 10,813,832 km (0.113 R)
• M42: 10,913,763 km (0.118 R)
• M43: 11,860,867 km (0.077 R)
• M44: 12,170,834 km (0.115 R)
• M45: 12,240,098 km (0.038 R)
• M46: 13,010,377 km (0.082 R)
• M47: 13,116,592 km (0.104 R)
• M48: 13,187,651 km (0.088 R)
• M49: 13,223,255 km (0.075 R)
• M50: 13,258,859 km (0.107 R)
• M51: 13,330,068 km (0.104 R)
• M52: 14,013,281 km (0.12 R)
• M53: 14,195,043 km (0.092 R)
• M54: 14,304,399 km (0.074 R)
• M55: 14,818,567 km (0.105 R)
• M56: 15,413,517 km (0.083 R)
• M57: 15,488,466 km (0.105 R)
• M58: 15,865,004 km (0.059 R)
• M59: 15,902,702 km (0.103 R)
• M60: 16,092,243 km (0.03 R)
• M61: 16,473,568 km (0.077 R)
• M62: 16,703,649 km (0.068 R)
• M63: 17,283,790 km (0.086 R)
• M64: 17,322,685 km (0.059 R)
• M65: 17,713,435 km (0.111 R)
• M66: 18,265,302 km (0.077 R)
• M67: 19,385,640 km (0.047 R)
• M68: 19,709,968 km (0.119 R)
• M69: 19,954,262 km (0.096 R)
• M70: 20,363,711 km (0.063 R)
• M71: 20,610,697 km (0.116 R)
• M72: 21,149,249 km (0.079 R)
• M73: 21,483,002 km (0.089 R)
• M74: 21,692,439 km (0.103 R)
• M75: 22,409,611 km (0.098 R)
• M76: 22,452,097 km (0.12 R)
• M77: 23,048,993 km (0.057 R)
• M78: 24,651,336 km (0.087 R)
• M79: 25,222,799 km (0.119 R)
• M80: 25,311,062 km (0.095 R)
• M81: 26,513,231 km (0.097 R)
• M82: 26,602,989 km (0.081 R)
• M83: 26,737,927 km (0.042 R)
• M84: 27,053,429 km (0.091 R)
• M85: 27,098,607 km (0.113 R)
• M86: 27,279,621 km (0.111 R)
• M87: 27,642,844 km (0.071 R)
• M88: 27,688,322 km (0.07 R)
• M89: 28,190,522 km (0.045 R)
• M90: 29,528,974 km (0.093 R)
• M91: 30,605,181 km (0.103 R)
• M92: 31,694,254 km (0.118 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 19,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit