🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.8

Radius: 9.8

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.97 AU - 1.11 AU

Year: 746 Days

Day: 9.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 146.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 49,347,598 km

• M1: 124,615 km (0.107 R)
• M2: 253,419 km (0.099 R)
• M3: 329,265 km (0.108 R)
• M4: 502,798 km (0.092 R)
• M5: 634,893 km (0.093 R)
• M6: 698,323 km (0.093 R)
• M7: 837,598 km (0.111 R)
• M8: 924,664 km (0.096 R)
• M9: 1,026,690 km (0.076 R)
• M10: 1,090,868 km (0.1 R)
• M11: 1,156,541 km (0.095 R)
• M12: 1,355,806 km (0.11 R)
• M13: 1,459,626 km (0.058 R)
• M14: 1,675,646 km (0.118 R)
• M15: 1,931,009 km (0.092 R)
• M16: 2,161,240 km (0.074 R)
• M17: 2,260,424 km (0.095 R)
• M18: 2,361,253 km (0.117 R)
• M19: 2,455,649 km (0.109 R)
• M20: 2,551,392 km (0.082 R)
• M21: 2,640,103 km (0.116 R)
• M22: 2,721,784 km (0.102 R)
• M23: 2,812,590 km (0.05 R)
• M24: 2,938,252 km (0.052 R)
• M25: 3,255,848 km (0.036 R)
• M26: 3,317,183 km (0.091 R)
• M27: 3,629,992 km (0.088 R)
• M28: 3,711,972 km (0.05 R)
• M29: 3,896,277 km (0.044 R)
• M30: 3,980,351 km (0.117 R)
• M31: 4,055,449 km (0.084 R)
• M32: 4,140,570 km (0.105 R)
• M33: 4,255,012 km (0.102 R)
• M34: 4,457,867 km (0.077 R)
• M35: 4,693,633 km (0.057 R)
• M36: 4,953,634 km (0.082 R)
• M37: 5,116,098 km (0.087 R)
• M38: 5,228,745 km (0.049 R)
• M39: 5,321,645 km (0.08 R)
• M40: 5,645,524 km (0.109 R)
• M41: 5,730,197 km (0.116 R)
• M42: 5,793,926 km (0.078 R)
• M43: 5,879,346 km (0.111 R)
• M44: 5,986,757 km (0.118 R)
• M45: 6,192,454 km (0.111 R)
• M46: 6,323,652 km (0.112 R)
• M47: 6,577,669 km (0.03 R)
• M48: 6,745,218 km (0.095 R)
• M49: 7,050,248 km (0.065 R)
• M50: 7,141,503 km (0.101 R)
• M51: 7,417,661 km (0.09 R)
• M52: 7,522,080 km (0.119 R)
• M53: 7,615,429 km (0.096 R)
• M54: 7,756,051 km (0.08 R)
• M55: 7,921,207 km (0.097 R)
• M56: 8,004,234 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.4

Radius: 14.2

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.88 AU - 1.46 AU

Year: 890 Days

Day: 8.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 49,347,598 km

• M1: 186,399 km (0.082 R)
• M2: 288,275 km (0.065 R)
• M3: 391,797 km (0.046 R)
• M4: 550,670 km (0.078 R)
• M5: 646,113 km (0.117 R)
• M6: 764,894 km (0.09 R)
• M7: 861,684 km (0.117 R)
• M8: 990,637 km (0.043 R)
• M9: 1,224,758 km (0.077 R)
• M10: 1,315,564 km (0.041 R)
• M11: 1,440,478 km (0.114 R)
• M12: 1,531,583 km (0.104 R)
• M13: 1,641,388 km (0.075 R)
• M14: 1,731,296 km (0.068 R)
• M15: 1,852,022 km (0.091 R)
• M16: 2,041,562 km (0.114 R)
• M17: 2,357,363 km (0.111 R)
• M18: 2,479,136 km (0.087 R)
• M19: 2,596,421 km (0.107 R)
• M20: 2,782,969 km (0.073 R)
• M21: 2,912,072 km (0.109 R)
• M22: 3,036,238 km (0.102 R)
• M23: 3,304,467 km (0.104 R)
• M24: 3,419,807 km (0.055 R)
• M25: 3,543,824 km (0.089 R)
• M26: 3,632,236 km (0.103 R)
• M27: 3,811,455 km (0.087 R)
• M28: 3,993,814 km (0.119 R)
• M29: 4,163,309 km (0.076 R)
• M30: 4,557,948 km (0.033 R)
• M31: 4,865,970 km (0.066 R)
• M32: 5,080,792 km (0.094 R)
• M33: 5,181,023 km (0.114 R)
• M34: 5,374,902 km (0.106 R)
• M35: 5,528,389 km (0.097 R)
• M36: 5,752,637 km (0.098 R)
• M37: 5,892,211 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.5

Radius: 13.1

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.17 AU - 1.69 AU

Year: 1202 Days

Day: 13.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 49,347,598 km

• M1: 173,683 km (0.083 R)
• M2: 349,012 km (0.111 R)
• M3: 586,872 km (0.109 R)
• M4: 701,165 km (0.108 R)
• M5: 882,179 km (0.107 R)
• M6: 975,528 km (0.116 R)
• M7: 1,065,735 km (0.084 R)
• M8: 1,188,256 km (0.064 R)
• M9: 1,377,497 km (0.106 R)
• M10: 1,496,128 km (0.06 R)
• M11: 1,685,070 km (0.117 R)
• M12: 1,786,947 km (0.098 R)
• M13: 1,988,156 km (0.114 R)
• M14: 2,160,193 km (0.116 R)
• M15: 2,299,618 km (0.058 R)
• M16: 2,403,888 km (0.11 R)
• M17: 2,627,088 km (0.101 R)
• M18: 2,847,147 km (0.106 R)
• M19: 2,959,345 km (0.065 R)
• M20: 3,125,548 km (0.105 R)
• M21: 3,220,393 km (0.115 R)
• M22: 3,380,613 km (0.103 R)
• M23: 3,888,647 km (0.081 R)
• M24: 4,221,502 km (0.093 R)
• M25: 4,315,001 km (0.081 R)
• M26: 4,397,280 km (0.107 R)
• M27: 4,504,093 km (0.117 R)
• M28: 5,087,824 km (0.085 R)
• M29: 5,968,955 km (0.099 R)
• M30: 6,246,459 km (0.109 R)
• M31: 6,474,297 km (0.104 R)
• M32: 6,596,069 km (0.119 R)
• M33: 6,787,106 km (0.114 R)
• M34: 6,924,586 km (0.109 R)
• M35: 7,076,877 km (0.102 R)
• M36: 7,244,426 km (0.109 R)
• M37: 7,427,385 km (0.074 R)
• M38: 7,554,992 km (0.083 R)
• M39: 7,654,624 km (0.082 R)
• M40: 7,971,023 km (0.108 R)
• M41: 8,058,089 km (0.108 R)
• M42: 8,145,454 km (0.112 R)
• M43: 8,365,214 km (0.086 R)
• M44: 8,468,436 km (0.07 R)
• M45: 8,691,038 km (0.054 R)
• M46: 8,870,555 km (0.105 R)
• M47: 9,051,419 km (0.093 R)
• M48: 9,294,366 km (0.068 R)
• M49: 9,585,633 km (0.119 R)
• M50: 9,709,201 km (0.115 R)
• M51: 9,848,925 km (0.101 R)
• M52: 10,051,780 km (0.106 R)
• M53: 10,161,585 km (0.096 R)
• M54: 10,303,404 km (0.111 R)
• M55: 10,781,070 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.5

Radius: 11.7

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.32 AU - 2.58 AU

Year: 2696 Days

Day: 13.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,347,598 km

• M1: 216,618 km (0.118 R)
• M2: 353,350 km (0.11 R)
• M3: 801,845 km (0.112 R)
• M4: 1,231,490 km (0.094 R)
• M5: 1,519,316 km (0.059 R)
• M6: 1,628,822 km (0.086 R)
• M7: 1,741,170 km (0.092 R)
• M8: 2,431,863 km (0.072 R)
• M9: 3,233,857 km (0.052 R)
• M10: 4,058,291 km (0.11 R)
• M11: 4,499,006 km (0.082 R)
• M12: 4,715,624 km (0.097 R)
• M13: 4,849,215 km (0.061 R)
• M14: 5,110,263 km (0.089 R)
• M15: 5,208,250 km (0.119 R)
• M16: 5,475,880 km (0.066 R)
• M17: 5,717,481 km (0.084 R)
• M18: 6,107,333 km (0.109 R)
• M19: 6,316,022 km (0.065 R)
• M20: 6,389,624 km (0.108 R)
• M21: 6,463,526 km (0.082 R)
• M22: 6,558,969 km (0.117 R)
• M23: 6,729,810 km (0.075 R)
• M24: 6,848,142 km (0.119 R)
• M25: 6,999,684 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.9

Radius: 9.4

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.76 AU - 3.04 AU

Year: 3471 Days

Day: 9.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 49,347,598 km

• M1: 150,645 km (0.102 R)
• M2: 292,165 km (0.116 R)
• M3: 386,710 km (0.113 R)
• M4: 502,798 km (0.089 R)
• M5: 680,970 km (0.1 R)
• M6: 902,374 km (0.116 R)
• M7: 1,146,967 km (0.083 R)
• M8: 1,245,851 km (0.118 R)
• M9: 1,452,296 km (0.059 R)
• M10: 1,656,198 km (0.092 R)
• M11: 1,726,210 km (0.102 R)
• M12: 1,826,141 km (0.098 R)
• M13: 2,016,729 km (0.035 R)
• M14: 2,354,222 km (0.099 R)
• M15: 2,449,366 km (0.094 R)
• M16: 2,742,727 km (0.07 R)
• M17: 2,927,780 km (0.057 R)
• M18: 3,047,608 km (0.111 R)
• M19: 3,186,584 km (0.067 R)
• M20: 3,327,655 km (0.103 R)
• M21: 3,689,532 km (0.038 R)
• M22: 4,083,274 km (0.086 R)
• M23: 4,159,718 km (0.061 R)
• M24: 4,353,148 km (0.085 R)
• M25: 4,829,468 km (0.107 R)
• M26: 5,053,416 km (0.108 R)
• M27: 5,135,695 km (0.077 R)
• M28: 5,660,035 km (0.049 R)
• M29: 5,917,793 km (0.101 R)
• M30: 6,069,934 km (0.117 R)
• M31: 6,333,824 km (0.106 R)
• M32: 6,736,841 km (0.038 R)
• M33: 6,895,714 km (0.12 R)
• M34: 7,125,047 km (0.07 R)
• M35: 7,310,250 km (0.056 R)
• M36: 7,520,584 km (0.044 R)
• M37: 7,709,227 km (0.112 R)
• M38: 7,875,580 km (0.099 R)
• M39: 7,971,173 km (0.118 R)
• M40: 8,626,412 km (0.099 R)
• M41: 8,973,030 km (0.106 R)
• M42: 9,628,867 km (0.096 R)
• M43: 9,731,192 km (0.077 R)
• M44: 10,378,651 km (0.099 R)
• M45: 10,509,849 km (0.09 R)
• M46: 10,641,495 km (0.096 R)
• M47: 10,773,739 km (0.109 R)
• M48: 11,066,652 km (0.08 R)
• M49: 11,470,417 km (0.032 R)
• M50: 12,570,410 km (0.114 R)
• M51: 12,907,005 km (0.114 R)
• M52: 12,991,677 km (0.114 R)
• M53: 13,161,471 km (0.053 R)
• M54: 13,446,006 km (0.112 R)
• M55: 13,703,913 km (0.102 R)
• M56: 14,137,298 km (0.095 R)
• M57: 14,341,200 km (0.092 R)
• M58: 14,692,904 km (0.082 R)
• M59: 14,810,788 km (0.034 R)
• M60: 14,869,729 km (0.109 R)
• M61: 15,136,462 km (0.117 R)
• M62: 15,734,854 km (0.094 R)
• M63: 15,825,211 km (0.043 R)
• M64: 16,432,578 km (0.076 R)
• M65: 17,047,425 km (0.069 R)
• M66: 17,575,955 km (0.092 R)
• M67: 18,078,304 km (0.118 R)
• M68: 18,649,170 km (0.116 R)
• M69: 18,840,805 km (0.082 R)
• M70: 19,065,201 km (0.114 R)
• M71: 19,581,314 km (0.11 R)
• M72: 20,397,071 km (0.108 R)
• M73: 21,357,190 km (0.088 R)
• M74: 21,457,271 km (0.045 R)
• M75: 21,960,519 km (0.11 R)
• M76: 22,162,775 km (0.08 R)
• M77: 22,264,202 km (0.12 R)
• M78: 22,671,408 km (0.11 R)
• M79: 22,841,800 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.6

Radius: 13

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.52 AU - 4.22 AU

Year: 5351 Days

Day: 8.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 49,347,598 km

• M1: 218,114 km (0.041 R)
• M2: 384,467 km (0.067 R)
• M3: 486,642 km (0.107 R)
• M4: 600,635 km (0.102 R)
• M5: 1,020,108 km (0.115 R)
• M6: 1,237,922 km (0.072 R)
• M7: 1,319,752 km (0.072 R)
• M8: 1,849,927 km (0.105 R)
• M9: 1,963,771 km (0.109 R)
• M10: 2,319,515 km (0.076 R)
• M11: 2,401,495 km (0.058 R)
• M12: 2,526,259 km (0.086 R)
• M13: 3,460,498 km (0.066 R)
• M14: 3,867,105 km (0.089 R)
• M15: 4,088,659 km (0.102 R)
• M16: 4,883,772 km (0.075 R)
• M17: 5,043,243 km (0.102 R)
• M18: 5,258,664 km (0.108 R)
• M19: 5,394,798 km (0.087 R)
• M20: 5,532,129 km (0.117 R)
• M21: 6,380,648 km (0.115 R)
• M22: 6,613,871 km (0.087 R)
• M23: 7,698,007 km (0.109 R)
• M24: 7,852,841 km (0.109 R)
• M25: 8,040,287 km (0.115 R)
• M26: 8,165,949 km (0.106 R)
• M27: 9,129,659 km (0.108 R)
• M28: 9,293,917 km (0.115 R)
• M29: 9,425,863 km (0.056 R)
• M30: 9,658,487 km (0.092 R)
• M31: 10,061,654 km (0.08 R)
• M32: 10,197,189 km (0.061 R)
• M33: 10,504,613 km (0.06 R)
• M34: 10,676,650 km (0.05 R)
• M35: 11,303,914 km (0.056 R)
• M36: 11,979,199 km (0.096 R)
• M37: 12,667,499 km (0.112 R)
• M38: 13,257,064 km (0.115 R)
• M39: 13,517,813 km (0.04 R)
• M40: 13,818,056 km (0.069 R)
• M41: 14,120,393 km (0.079 R)
• M42: 14,539,716 km (0.047 R)
• M43: 14,731,650 km (0.1 R)
• M44: 15,118,062 km (0.1 R)
• M45: 15,429,674 km (0.067 R)
• M46: 16,536,848 km (0.076 R)
• M47: 17,465,551 km (0.064 R)
• M48: 17,628,763 km (0.061 R)
• M49: 17,915,691 km (0.089 R)
• M50: 18,369,721 km (0.115 R)
• M51: 18,785,753 km (0.081 R)
• M52: 19,415,560 km (0.116 R)
• M53: 19,711,913 km (0.053 R)
• M54: 19,881,856 km (0.064 R)
• M55: 21,129,054 km (0.038 R)
• M56: 21,871,807 km (0.066 R)
• M57: 22,091,866 km (0.101 R)
• M58: 22,356,953 km (0.053 R)
• M59: 22,712,098 km (0.059 R)
• M60: 22,890,419 km (0.111 R)
• M61: 23,203,527 km (0.095 R)
• M62: 23,338,165 km (0.053 R)
• M63: 25,203,800 km (0.071 R)
• M64: 25,851,858 km (0.094 R)
• M65: 26,646,074 km (0.068 R)
• M66: 26,928,365 km (0.057 R)
• M67: 27,638,356 km (0.061 R)
• M68: 27,781,073 km (0.032 R)
• M69: 27,971,810 km (0.054 R)
• M70: 28,354,481 km (0.034 R)
• M71: 28,594,586 km (0.116 R)
• M72: 29,367,259 km (0.095 R)
• M73: 29,561,586 km (0.116 R)
• M74: 30,785,447 km (0.059 R)
• M75: 31,032,283 km (0.113 R)
• M76: 31,676,900 km (0.063 R)
• M77: 31,975,946 km (0.117 R)
• M78: 32,878,620 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 247.2

Radius: 3.8

Gravity: 17.12 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.89 AU - 10.09 AU

Year: 17389 Days

Day: 15.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 49,347,598 km

• M1: 120,277 km (0.117 R)
• M2: 502,350 km (0.1 R)
• M3: 648,806 km (0.102 R)
• M4: 808,277 km (0.087 R)
• M5: 864,227 km (0.072 R)
• M6: 1,100,592 km (0.11 R)
• M7: 1,204,861 km (0.1 R)
• M8: 1,290,581 km (0.053 R)
• M9: 1,356,254 km (0.118 R)
• M10: 1,400,685 km (0.057 R)
• M11: 1,445,415 km (0.078 R)
• M12: 1,895,106 km (0.09 R)
• M13: 2,020,319 km (0.078 R)
• M14: 2,492,600 km (0.105 R)
• M15: 2,629,781 km (0.105 R)
• M16: 3,202,442 km (0.037 R)
• M17: 3,502,834 km (0.08 R)
• M18: 3,970,178 km (0.109 R)
• M19: 4,162,561 km (0.026 R)
• M20: 4,194,874 km (0.117 R)
• M21: 4,357,936 km (0.081 R)
• M22: 4,489,881 km (0.08 R)
• M23: 4,656,683 km (0.11 R)
• M24: 4,927,754 km (0.105 R)
• M25: 5,099,941 km (0.093 R)
• M26: 5,379,240 km (0.119 R)
• M27: 5,556,364 km (0.108 R)
• M28: 5,663,626 km (0.085 R)
• M29: 5,771,486 km (0.095 R)
• M30: 6,136,056 km (0.058 R)
• M31: 6,209,808 km (0.095 R)
• M32: 7,627,247 km (0.083 R)
• M33: 7,946,489 km (0.047 R)
• M34: 7,986,582 km (0.106 R)
• M35: 8,107,606 km (0.061 R)
• M36: 8,433,281 km (0.048 R)
• M37: 9,139,383 km (0.095 R)
• M38: 9,223,756 km (0.095 R)
• M39: 9,778,016 km (0.115 R)
• M40: 10,124,485 km (0.116 R)
• M41: 11,187,976 km (0.081 R)
• M42: 11,233,005 km (0.084 R)
• M43: 12,239,799 km (0.114 R)
• M44: 14,436,195 km (0.109 R)
• M45: 14,485,263 km (0.084 R)
• M46: 15,128,384 km (0.04 R)
• M47: 15,679,802 km (0.111 R)
• M48: 16,390,990 km (0.106 R)
• M49: 17,373,100 km (0.083 R)
• M50: 18,214,738 km (0.029 R)
• M51: 18,374,059 km (0.102 R)
• M52: 19,231,255 km (0.04 R)
• M53: 19,719,243 km (0.093 R)
• M54: 20,321,225 km (0.119 R)
• M55: 20,873,540 km (0.114 R)
• M56: 21,880,334 km (0.118 R)
• M57: 21,993,131 km (0.114 R)
• M58: 22,162,775 km (0.086 R)
• M59: 22,503,260 km (0.116 R)
• M60: 23,017,278 km (0.098 R)
• M61: 24,056,983 km (0.108 R)
• M62: 24,115,177 km (0.067 R)
• M63: 25,289,071 km (0.072 R)
• M64: 25,526,034 km (0.12 R)
• M65: 26,062,043 km (0.066 R)
• M66: 26,361,389 km (0.116 R)
• M67: 26,661,931 km (0.09 R)
• M68: 26,903,083 km (0.113 R)
• M69: 27,266,306 km (0.047 R)
• M70: 27,936,355 km (0.057 R)
• M71: 28,058,726 km (0.053 R)
• M72: 28,427,036 km (0.109 R)
• M73: 29,168,443 km (0.111 R)
• M74: 29,916,133 km (0.073 R)
• M75: 30,481,165 km (0.069 R)
• M76: 32,132,875 km (0.1 R)
• M77: 32,325,257 km (0.067 R)
• M78: 32,582,416 km (0.108 R)
• M79: 33,748,232 km (0.074 R)
• M80: 33,813,457 km (0.105 R)
• M81: 37,866,811 km (0.066 R)
• M82: 38,002,197 km (0.098 R)
• M83: 38,681,970 km (0.069 R)
• M84: 39,709,259 km (0.063 R)
• M85: 39,915,704 km (0.095 R)
• M86: 40,260,677 km (0.105 R)
• M87: 41,023,177 km (0.107 R)
• M88: 41,580,579 km (0.037 R)
• M89: 42,421,618 km (0.115 R)
• M90: 42,703,161 km (0.103 R)
• M91: 45,696,614 km (0.11 R)
• M92: 46,129,850 km (0.036 R)
• M93: 46,782,097 km (0.106 R)
• M94: 47,364,481 km (0.045 R)
• M95: 48,830,839 km (0.032 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 13,083 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit