🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.2

Radius: 10.9

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.8 AU - 1.04 AU

Year: 579 Days

Day: 11.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 105.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 66,631,989 km

• M1: 178,321 km (0.04 R)
• M2: 271,670 km (0.082 R)
• M3: 516,113 km (0.103 R)
• M4: 623,674 km (0.107 R)
• M5: 858,542 km (0.117 R)
• M6: 956,379 km (0.098 R)
• M7: 1,075,609 km (0.027 R)
• M8: 1,298,210 km (0.053 R)
• M9: 1,549,385 km (0.068 R)
• M10: 1,753,437 km (0.075 R)
• M11: 1,844,691 km (0.089 R)
• M12: 1,923,230 km (0.11 R)
• M13: 1,995,486 km (0.107 R)
• M14: 2,083,599 km (0.083 R)
• M15: 2,488,561 km (0.043 R)
• M16: 2,559,919 km (0.084 R)
• M17: 2,720,736 km (0.104 R)
• M18: 3,027,263 km (0.064 R)
• M19: 3,206,331 km (0.088 R)
• M20: 3,371,338 km (0.089 R)
• M21: 3,565,964 km (0.118 R)
• M22: 3,746,230 km (0.049 R)
• M23: 3,874,136 km (0.049 R)
• M24: 3,947,888 km (0.086 R)
• M25: 4,096,887 km (0.067 R)
• M26: 4,172,135 km (0.077 R)
• M27: 4,247,832 km (0.106 R)
• M28: 4,323,977 km (0.073 R)
• M29: 4,448,741 km (0.037 R)
• M30: 4,672,390 km (0.077 R)
• M31: 4,840,090 km (0.116 R)
• M32: 4,919,676 km (0.093 R)
• M33: 5,039,952 km (0.103 R)
• M34: 5,344,982 km (0.063 R)
• M35: 5,417,088 km (0.081 R)
• M36: 5,541,255 km (0.096 R)
• M37: 5,645,524 km (0.108 R)
• M38: 5,834,915 km (0.056 R)
• M39: 5,973,144 km (0.086 R)
• M40: 6,069,335 km (0.109 R)
• M41: 6,263,364 km (0.088 R)
• M42: 6,404,883 km (0.117 R)
• M43: 6,481,477 km (0.088 R)
• M44: 6,602,502 km (0.075 R)
• M45: 6,690,914 km (0.077 R)
• M46: 6,824,505 km (0.083 R)
• M47: 6,902,745 km (0.089 R)
• M48: 7,275,842 km (0.065 R)
• M49: 7,378,616 km (0.12 R)
• M50: 7,470,618 km (0.097 R)
• M51: 7,655,521 km (0.119 R)
• M52: 7,795,096 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 13

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.33 AU - 1.79 AU

Year: 1278 Days

Day: 6 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 66,631,989 km

• M1: 180,714 km (0.106 R)
• M2: 275,410 km (0.084 R)
• M3: 366,066 km (0.1 R)
• M4: 447,447 km (0.085 R)
• M5: 537,356 km (0.114 R)
• M6: 652,995 km (0.102 R)
• M7: 962,812 km (0.093 R)
• M8: 1,139,337 km (0.085 R)
• M9: 1,279,211 km (0.043 R)
• M10: 1,367,773 km (0.085 R)
• M11: 1,594,414 km (0.113 R)
• M12: 1,690,306 km (0.096 R)
• M13: 1,815,520 km (0.118 R)
• M14: 1,990,400 km (0.079 R)
• M15: 2,171,263 km (0.113 R)
• M16: 2,288,249 km (0.101 R)
• M17: 2,377,409 km (0.104 R)
• M18: 2,488,112 km (0.114 R)
• M19: 2,652,370 km (0.082 R)
• M20: 2,884,097 km (0.109 R)
• M21: 2,980,887 km (0.057 R)
• M22: 3,100,715 km (0.077 R)
• M23: 3,424,445 km (0.048 R)
• M24: 3,770,914 km (0.101 R)
• M25: 3,865,310 km (0.077 R)
• M26: 4,044,378 km (0.105 R)
• M27: 4,128,901 km (0.086 R)
• M28: 4,262,941 km (0.063 R)
• M29: 4,423,310 km (0.089 R)
• M30: 5,097,847 km (0.11 R)
• M31: 5,268,239 km (0.038 R)
• M32: 5,507,446 km (0.083 R)
• M33: 5,750,093 km (0.11 R)
• M34: 5,872,913 km (0.113 R)
• M35: 6,190,509 km (0.114 R)
• M36: 6,443,031 km (0.07 R)
• M37: 6,684,631 km (0.098 R)
• M38: 6,914,862 km (0.033 R)
• M39: 7,089,293 km (0.082 R)
• M40: 7,221,089 km (0.101 R)
• M41: 7,651,183 km (0.104 R)
• M42: 7,937,663 km (0.118 R)
• M43: 8,397,078 km (0.12 R)
• M44: 8,505,537 km (0.064 R)
• M45: 8,692,534 km (0.118 R)
• M46: 8,865,170 km (0.096 R)
• M47: 9,086,575 km (0.1 R)
• M48: 9,214,032 km (0.099 R)
• M49: 9,534,919 km (0.115 R)
• M50: 9,761,859 km (0.111 R)
• M51: 9,859,696 km (0.056 R)
• M52: 10,006,901 km (0.098 R)
• M53: 10,171,458 km (0.087 R)
• M54: 10,336,914 km (0.042 R)
• M55: 10,620,252 km (0.108 R)
• M56: 10,889,379 km (0.082 R)
• M57: 11,245,870 km (0.112 R)
• M58: 11,331,291 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.1

Radius: 8.5

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.37 AU - 3.57 AU

Year: 3358 Days

Day: 10.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 66,631,989 km

• M1: 141,071 km (0.098 R)
• M2: 211,232 km (0.105 R)
• M3: 283,189 km (0.057 R)
• M4: 337,642 km (0.115 R)
• M5: 419,921 km (0.107 R)
• M6: 501,602 km (0.078 R)
• M7: 731,683 km (0.067 R)
• M8: 812,466 km (0.107 R)
• M9: 907,012 km (0.099 R)
• M10: 1,360,144 km (0.084 R)
• M11: 1,461,122 km (0.093 R)
• M12: 1,806,843 km (0.091 R)
• M13: 1,918,293 km (0.111 R)
• M14: 2,003,564 km (0.097 R)
• M15: 2,148,375 km (0.099 R)
• M16: 2,525,661 km (0.119 R)
• M17: 2,666,582 km (0.072 R)
• M18: 3,324,214 km (0.086 R)
• M19: 3,583,467 km (0.04 R)
• M20: 3,831,501 km (0.116 R)
• M21: 3,939,361 km (0.06 R)
• M22: 4,781,298 km (0.109 R)
• M23: 5,034,716 km (0.082 R)
• M24: 5,172,945 km (0.094 R)
• M25: 5,272,577 km (0.101 R)
• M26: 5,677,239 km (0.089 R)
• M27: 6,452,007 km (0.101 R)
• M28: 6,797,278 km (0.101 R)
• M29: 6,994,299 km (0.027 R)
• M30: 7,937,962 km (0.081 R)
• M31: 8,006,927 km (0.096 R)
• M32: 8,424,754 km (0.072 R)
• M33: 8,849,612 km (0.092 R)
• M34: 9,016,862 km (0.101 R)
• M35: 9,088,819 km (0.12 R)
• M36: 9,329,970 km (0.064 R)
• M37: 9,720,421 km (0.116 R)
• M38: 10,466,914 km (0.04 R)
• M39: 10,542,461 km (0.107 R)
• M40: 10,669,021 km (0.087 R)
• M41: 10,923,487 km (0.077 R)
• M42: 11,077,274 km (0.1 R)
• M43: 11,154,316 km (0.055 R)
• M44: 11,594,733 km (0.084 R)
• M45: 11,803,870 km (0.063 R)
• M46: 12,146,599 km (0.095 R)
• M47: 12,385,657 km (0.062 R)
• M48: 12,439,063 km (0.111 R)
• M49: 12,680,065 km (0.095 R)
• M50: 12,814,554 km (0.065 R)
• M51: 12,976,718 km (0.077 R)
• M52: 13,030,872 km (0.098 R)
• M53: 13,412,347 km (0.026 R)
• M54: 13,880,588 km (0.104 R)
• M55: 14,635,160 km (0.099 R)
• M56: 14,946,323 km (0.114 R)
• M57: 15,951,172 km (0.106 R)
• M58: 17,424,113 km (0.104 R)
• M59: 17,483,952 km (0.093 R)
• M60: 17,693,838 km (0.11 R)
• M61: 17,814,264 km (0.084 R)
• M62: 18,786,650 km (0.119 R)
• M63: 19,186,675 km (0.1 R)
• M64: 19,434,110 km (0.103 R)
• M65: 19,496,193 km (0.052 R)
• M66: 20,088,900 km (0.072 R)
• M67: 20,371,789 km (0.084 R)
• M68: 20,434,920 km (0.025 R)
• M69: 20,751,020 km (0.101 R)
• M70: 21,388,157 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.6

Radius: 9

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.34 AU - 5.22 AU

Year: 6856 Days

Day: 14 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 66,631,989 km

• M1: 135,236 km (0.042 R)
• M2: 207,791 km (0.105 R)
• M3: 383,120 km (0.085 R)
• M4: 542,591 km (0.052 R)
• M5: 960,418 km (0.115 R)
• M6: 1,238,072 km (0.108 R)
• M7: 1,348,774 km (0.077 R)
• M8: 1,701,077 km (0.108 R)
• M9: 1,994,588 km (0.083 R)
• M10: 2,191,908 km (0.027 R)
• M11: 2,304,406 km (0.053 R)
• M12: 2,441,886 km (0.114 R)
• M13: 2,582,059 km (0.045 R)
• M14: 2,700,990 km (0.038 R)
• M15: 2,797,480 km (0.072 R)
• M16: 2,994,052 km (0.115 R)
• M17: 3,478,749 km (0.055 R)
• M18: 3,610,395 km (0.106 R)
• M19: 5,285,442 km (0.036 R)
• M20: 5,559,506 km (0.092 R)
• M21: 5,713,891 km (0.096 R)
• M22: 5,775,974 km (0.103 R)
• M23: 5,963,719 km (0.105 R)
• M24: 6,345,194 km (0.087 R)
• M25: 6,506,610 km (0.094 R)
• M26: 7,199,098 km (0.11 R)
• M27: 7,708,030 km (0.089 R)
• M28: 7,845,660 km (0.114 R)
• M29: 8,546,377 km (0.11 R)
• M30: 9,048,726 km (0.077 R)
• M31: 9,230,488 km (0.07 R)
• M32: 9,932,251 km (0.091 R)
• M33: 12,018,843 km (0.118 R)
• M34: 12,138,670 km (0.072 R)
• M35: 12,662,413 km (0.025 R)
• M36: 13,111,206 km (0.092 R)
• M37: 13,815,363 km (0.111 R)
• M38: 14,024,800 km (0.072 R)
• M39: 14,361,994 km (0.07 R)
• M40: 15,087,544 km (0.052 R)
• M41: 15,346,498 km (0.099 R)
• M42: 15,476,648 km (0.103 R)
• M43: 15,912,726 km (0.108 R)
• M44: 16,088,204 km (0.108 R)
• M45: 16,529,966 km (0.107 R)
• M46: 16,707,689 km (0.043 R)
• M47: 16,841,579 km (0.072 R)
• M48: 17,155,136 km (0.075 R)
• M49: 17,742,457 km (0.108 R)
• M50: 18,705,269 km (0.09 R)
• M51: 18,797,870 km (0.114 R)
• M52: 19,076,421 km (0.118 R)
• M53: 19,543,915 km (0.115 R)
• M54: 19,637,862 km (0.066 R)
• M55: 20,299,833 km (0.105 R)
• M56: 20,920,963 km (0.048 R)
• M57: 21,258,007 km (0.046 R)
• M58: 22,279,910 km (0.082 R)
• M59: 23,417,452 km (0.114 R)
• M60: 24,371,288 km (0.112 R)
• M61: 25,337,840 km (0.087 R)
• M62: 26,161,526 km (0.115 R)
• M63: 26,368,869 km (0.027 R)
• M64: 26,524,600 km (0.059 R)
• M65: 27,518,678 km (0.111 R)
• M66: 27,623,995 km (0.098 R)
• M67: 27,993,801 km (0.095 R)
• M68: 28,311,995 km (0.078 R)
• M69: 28,471,616 km (0.039 R)
• M70: 28,684,793 km (0.078 R)
• M71: 29,381,471 km (0.109 R)
• M72: 30,518,564 km (0.061 R)
• M73: 31,559,765 km (0.114 R)
• M74: 31,946,326 km (0.119 R)
• M75: 32,168,030 km (0.096 R)
• M76: 32,612,635 km (0.079 R)
• M77: 33,452,029 km (0.037 R)
• M78: 33,508,128 km (0.062 R)
• M79: 33,564,377 km (0.078 R)
• M80: 34,980,620 km (0.107 R)
• M81: 35,380,644 km (0.064 R)
• M82: 36,358,416 km (0.063 R)
• M83: 37,695,372 km (0.071 R)
• M84: 38,576,055 km (0.091 R)
• M85: 38,811,971 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.2

Radius: 12.2

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.77 AU - 6.11 AU

Year: 8324 Days

Day: 11.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 66,631,989 km

• M1: 255,513 km (0.106 R)
• M2: 498,460 km (0.11 R)
• M3: 755,320 km (0.097 R)
• M4: 927,208 km (0.114 R)
• M5: 1,018,462 km (0.048 R)
• M6: 1,151,604 km (0.112 R)
• M7: 1,311,525 km (0.117 R)
• M8: 1,587,533 km (0.116 R)
• M9: 1,676,244 km (0.09 R)
• M10: 1,953,000 km (0.08 R)
• M11: 2,550,943 km (0.116 R)
• M12: 2,629,482 km (0.103 R)
• M13: 2,816,330 km (0.11 R)
• M14: 3,607,253 km (0.092 R)
• M15: 3,725,735 km (0.111 R)
• M16: 3,905,851 km (0.119 R)
• M17: 4,058,291 km (0.116 R)
• M18: 4,243,792 km (0.101 R)
• M19: 4,980,861 km (0.114 R)
• M20: 5,381,335 km (0.085 R)
• M21: 6,001,567 km (0.066 R)
• M22: 6,499,878 km (0.104 R)
• M23: 6,644,689 km (0.101 R)
• M24: 6,790,547 km (0.087 R)
• M25: 7,460,296 km (0.078 R)
• M26: 7,650,136 km (0.048 R)
• M27: 7,803,175 km (0.033 R)
• M28: 7,996,006 km (0.116 R)
• M29: 8,190,184 km (0.057 R)
• M30: 8,464,996 km (0.075 R)
• M31: 8,543,983 km (0.069 R)
• M32: 9,104,227 km (0.097 R)
• M33: 9,225,850 km (0.108 R)
• M34: 11,244,374 km (0.053 R)
• M35: 11,769,762 km (0.033 R)
• M36: 12,527,924 km (0.092 R)
• M37: 13,072,460 km (0.087 R)
• M38: 13,209,791 km (0.035 R)
• M39: 13,950,600 km (0.059 R)
• M40: 14,704,872 km (0.037 R)
• M41: 14,895,610 km (0.105 R)
• M42: 15,424,139 km (0.12 R)
• M43: 15,763,726 km (0.103 R)
• M44: 15,909,883 km (0.037 R)
• M45: 16,697,815 km (0.072 R)
• M46: 17,548,728 km (0.04 R)
• M47: 18,157,890 km (0.094 R)
• M48: 18,567,938 km (0.118 R)
• M49: 19,292,740 km (0.113 R)
• M50: 19,397,159 km (0.116 R)
• M51: 19,553,938 km (0.084 R)
• M52: 20,663,505 km (0.114 R)
• M53: 21,793,418 km (0.07 R)
• M54: 22,338,552 km (0.095 R)
• M55: 23,219,983 km (0.095 R)
• M56: 24,733,315 km (0.077 R)
• M57: 24,960,255 km (0.116 R)
• M58: 26,451,895 km (0.081 R)
• M59: 26,858,503 km (0.047 R)
• M60: 27,150,218 km (0.118 R)
• M61: 29,221,102 km (0.089 R)
• M62: 30,305,836 km (0.081 R)
• M63: 30,609,520 km (0.084 R)
• M64: 31,342,549 km (0.049 R)
• M65: 31,834,277 km (0.093 R)
• M66: 34,648,213 km (0.091 R)
• M67: 34,838,651 km (0.119 R)
• M68: 35,859,956 km (0.101 R)
• M69: 36,181,143 km (0.114 R)
• M70: 36,891,284 km (0.105 R)
• M71: 37,801,587 km (0.111 R)
• M72: 38,193,982 km (0.073 R)
• M73: 39,114,906 km (0.12 R)
• M74: 40,109,583 km (0.118 R)
• M75: 40,509,907 km (0.116 R)
• M76: 41,179,955 km (0.074 R)
• M77: 44,240,130 km (0.077 R)
• M78: 44,722,732 km (0.093 R)
• M79: 44,999,189 km (0.103 R)
• M80: 45,276,394 km (0.084 R)
• M81: 46,950,993 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 911.5

Radius: 7.4

Gravity: 16.65 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.06 AU - 8.48 AU

Year: 14208 Days

Day: 24.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 66,631,989 km

• M1: 179,517 km (0.116 R)
• M2: 226,641 km (0.098 R)
• M3: 324,179 km (0.113 R)
• M4: 584,928 km (0.104 R)
• M5: 997,519 km (0.039 R)
• M6: 1,271,881 km (0.075 R)
• M7: 1,377,497 km (0.109 R)
• M8: 1,828,984 km (0.12 R)
• M9: 2,164,681 km (0.081 R)
• M10: 2,858,067 km (0.085 R)
• M11: 3,210,969 km (0.101 R)
• M12: 3,503,133 km (0.114 R)
• M13: 3,765,977 km (0.109 R)
• M14: 4,390,548 km (0.072 R)
• M15: 5,777,769 km (0.112 R)
• M16: 6,725,471 km (0.096 R)
• M17: 8,409,495 km (0.052 R)
• M18: 9,066,678 km (0.065 R)
• M19: 9,169,153 km (0.104 R)
• M20: 9,272,226 km (0.05 R)
• M21: 11,080,415 km (0.103 R)
• M22: 11,300,174 km (0.072 R)
• M23: 11,465,929 km (0.057 R)
• M24: 12,193,573 km (0.028 R)
• M25: 12,706,095 km (0.096 R)
• M26: 13,109,561 km (0.092 R)
• M27: 13,458,722 km (0.096 R)
• M28: 13,575,857 km (0.072 R)
• M29: 13,752,083 km (0.093 R)
• M30: 14,166,320 km (0.115 R)
• M31: 14,345,089 km (0.037 R)
• M32: 14,946,473 km (0.095 R)
• M33: 15,433,414 km (0.078 R)
• M34: 16,610,749 km (0.101 R)
• M35: 17,178,623 km (0.102 R)
• M36: 19,380,255 km (0.048 R)
• M37: 20,312,399 km (0.075 R)
• M38: 20,446,738 km (0.1 R)
• M39: 22,775,677 km (0.064 R)
• M40: 23,195,299 km (0.059 R)
• M41: 23,265,461 km (0.105 R)
• M42: 24,540,932 km (0.108 R)
• M43: 24,612,440 km (0.072 R)
• M44: 24,827,412 km (0.103 R)
• M45: 25,042,983 km (0.117 R)
• M46: 25,403,813 km (0.059 R)
• M47: 25,621,029 km (0.092 R)
• M48: 26,569,629 km (0.106 R)
• M49: 27,603,949 km (0.059 R)
• M50: 29,407,800 km (0.073 R)
• M51: 30,017,411 km (0.115 R)
• M52: 30,170,450 km (0.099 R)
• M53: 31,017,024 km (0.049 R)
• M54: 32,027,558 km (0.12 R)
• M55: 33,444,399 km (0.067 R)
• M56: 34,640,733 km (0.089 R)
• M57: 35,203,820 km (0.103 R)
• M58: 37,075,139 km (0.112 R)
• M59: 37,733,520 km (0.058 R)
• M60: 39,815,922 km (0.111 R)
• M61: 40,321,264 km (0.112 R)
• M62: 40,744,027 km (0.117 R)
• M63: 41,423,351 km (0.102 R)
• M64: 41,764,434 km (0.087 R)
• M65: 41,935,425 km (0.12 R)
• M66: 43,224,659 km (0.094 R)
• M67: 44,352,328 km (0.113 R)
• M68: 45,402,056 km (0.102 R)
• M69: 45,753,761 km (0.064 R)
• M70: 46,636,837 km (0.105 R)
• M71: 46,814,260 km (0.103 R)
• M72: 48,599,711 km (0.116 R)
• M73: 49,772,109 km (0.109 R)
• M74: 50,589,213 km (0.106 R)
• M75: 51,869,172 km (0.099 R)
• M76: 52,421,039 km (0.098 R)
• M77: 53,716,107 km (0.102 R)
• M78: 54,928,000 km (0.116 R)
• M79: 56,999,631 km (0.108 R)
• M80: 57,189,172 km (0.045 R)
• M81: 59,000,652 km (0.057 R)
• M82: 60,347,482 km (0.063 R)
• M83: 60,540,762 km (0.069 R)
• M84: 61,412,768 km (0.085 R)
• M85: 63,169,346 km (0.104 R)
• M86: 63,562,041 km (0.1 R)
• M87: 63,856,898 km (0.107 R)
• M88: 63,955,334 km (0.106 R)
• M89: 64,448,259 km (0.103 R)
• M90: 64,744,612 km (0.097 R)
• M91: 66,631,939 km (0.113 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 14,377 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit