🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.2

Radius: 8.2

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.43 AU - 0.69 AU

Year: 279 Days

Day: 6.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,338,964 km

• M1: 119,529 km (0.095 R)
• M2: 205,099 km (0.114 R)
• M3: 260,151 km (0.109 R)
• M4: 364,420 km (0.075 R)
• M5: 458,069 km (0.113 R)
• M6: 575,204 km (0.084 R)
• M7: 631,752 km (0.09 R)
• M8: 703,110 km (0.043 R)
• M9: 757,713 km (0.113 R)
• M10: 834,008 km (0.115 R)
• M11: 1,064,239 km (0.04 R)
• M12: 1,146,817 km (0.117 R)
• M13: 1,204,412 km (0.088 R)
• M14: 1,274,723 km (0.077 R)
• M15: 1,326,634 km (0.033 R)
• M16: 1,424,022 km (0.027 R)
• M17: 1,482,066 km (0.081 R)
• M18: 1,553,574 km (0.083 R)
• M19: 1,613,413 km (0.103 R)
• M20: 1,704,668 km (0.098 R)
• M21: 1,824,645 km (0.068 R)
• M22: 1,919,789 km (0.049 R)
• M23: 2,063,553 km (0.111 R)
• M24: 2,120,101 km (0.108 R)
• M25: 2,182,035 km (0.106 R)
• M26: 2,322,208 km (0.096 R)
• M27: 2,435,753 km (0.064 R)
• M28: 2,520,724 km (0.066 R)
• M29: 2,955,456 km (0.089 R)
• M30: 3,078,724 km (0.052 R)
• M31: 3,132,729 km (0.112 R)
• M32: 3,357,874 km (0.062 R)
• M33: 3,622,512 km (0.058 R)
• M34: 3,794,999 km (0.07 R)
• M35: 3,847,208 km (0.096 R)
• M36: 4,040,938 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.2

Radius: 12.7

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.39 AU - 1.49 AU

Year: 1152 Days

Day: 6.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 83,338,964 km

• M1: 185,950 km (0.089 R)
• M2: 286,929 km (0.089 R)
• M3: 367,712 km (0.067 R)
• M4: 466,147 km (0.049 R)
• M5: 570,267 km (0.089 R)
• M6: 1,021,903 km (0.109 R)
• M7: 1,165,218 km (0.094 R)
• M8: 1,464,114 km (0.113 R)
• M9: 1,572,423 km (0.043 R)
• M10: 1,749,846 km (0.1 R)
• M11: 2,145,084 km (0.071 R)
• M12: 2,332,231 km (0.077 R)
• M13: 2,667,629 km (0.071 R)
• M14: 2,835,478 km (0.083 R)
• M15: 2,926,434 km (0.052 R)
• M16: 3,076,480 km (0.066 R)
• M17: 3,348,300 km (0.097 R)
• M18: 3,566,712 km (0.112 R)
• M19: 3,665,297 km (0.079 R)
• M20: 4,094,344 km (0.098 R)
• M21: 4,249,776 km (0.107 R)
• M22: 4,486,590 km (0.108 R)
• M23: 4,620,031 km (0.07 R)
• M24: 4,741,355 km (0.103 R)
• M25: 5,208,998 km (0.084 R)
• M26: 5,349,470 km (0.077 R)
• M27: 5,476,928 km (0.119 R)
• M28: 5,720,623 km (0.101 R)
• M29: 5,997,079 km (0.098 R)
• M30: 6,100,152 km (0.117 R)
• M31: 6,203,674 km (0.109 R)
• M32: 6,548,198 km (0.069 R)
• M33: 6,669,522 km (0.093 R)
• M34: 6,761,076 km (0.1 R)
• M35: 7,303,218 km (0.119 R)
• M36: 7,508,168 km (0.071 R)
• M37: 7,619,319 km (0.111 R)
• M38: 7,715,061 km (0.111 R)
• M39: 8,037,146 km (0.049 R)
• M40: 8,150,840 km (0.089 R)
• M41: 8,265,133 km (0.056 R)
• M42: 8,594,697 km (0.093 R)
• M43: 8,894,940 km (0.083 R)
• M44: 8,979,014 km (0.099 R)
• M45: 9,437,382 km (0.103 R)
• M46: 9,695,438 km (0.094 R)
• M47: 9,781,906 km (0.089 R)
• M48: 9,973,241 km (0.079 R)
• M49: 10,165,774 km (0.059 R)
• M50: 10,590,033 km (0.1 R)
• M51: 10,804,407 km (0.055 R)
• M52: 10,894,166 km (0.073 R)
• M53: 11,128,586 km (0.04 R)
• M54: 11,328,448 km (0.066 R)
• M55: 11,510,958 km (0.052 R)
• M56: 11,602,661 km (0.085 R)
• M57: 11,768,266 km (0.107 R)
• M58: 11,916,218 km (0.105 R)
• M59: 12,213,918 km (0.104 R)
• M60: 12,382,365 km (0.096 R)
• M61: 12,664,956 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.3

Radius: 11.7

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.67 AU - 3.13 AU

Year: 3293 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 83,338,964 km

• M1: 167,699 km (0.12 R)
• M2: 288,275 km (0.098 R)
• M3: 380,727 km (0.109 R)
• M4: 479,910 km (0.065 R)
• M5: 657,333 km (0.091 R)
• M6: 764,296 km (0.05 R)
• M7: 897,288 km (0.112 R)
• M8: 1,209,948 km (0.103 R)
• M9: 1,287,888 km (0.114 R)
• M10: 1,544,748 km (0.081 R)
• M11: 1,805,646 km (0.105 R)
• M12: 2,454,901 km (0.04 R)
• M13: 2,971,313 km (0.112 R)
• M14: 3,140,658 km (0.12 R)
• M15: 3,281,728 km (0.097 R)
• M16: 3,456,908 km (0.108 R)
• M17: 3,700,902 km (0.109 R)
• M18: 3,833,445 km (0.108 R)
• M19: 4,086,116 km (0.085 R)
• M20: 4,171,686 km (0.098 R)
• M21: 4,292,412 km (0.104 R)
• M22: 4,449,190 km (0.117 R)
• M23: 4,572,609 km (0.074 R)
• M24: 4,715,026 km (0.041 R)
• M25: 5,411,703 km (0.096 R)
• M26: 5,714,788 km (0.099 R)
• M27: 5,791,382 km (0.097 R)
• M28: 6,023,409 km (0.036 R)
• M29: 6,258,577 km (0.045 R)
• M30: 6,516,633 km (0.1 R)
• M31: 6,636,910 km (0.031 R)
• M32: 6,941,042 km (0.077 R)
• M33: 7,064,011 km (0.063 R)
• M34: 7,291,251 km (0.092 R)
• M35: 7,374,577 km (0.03 R)
• M36: 7,647,294 km (0.098 R)
• M37: 8,332,901 km (0.09 R)
• M38: 8,661,118 km (0.108 R)
• M39: 9,262,651 km (0.054 R)
• M40: 9,488,843 km (0.11 R)
• M41: 9,785,646 km (0.113 R)
• M42: 10,108,777 km (0.103 R)
• M43: 10,341,850 km (0.104 R)
• M44: 10,670,966 km (0.076 R)
• M45: 10,765,661 km (0.053 R)
• M46: 11,703,490 km (0.1 R)
• M47: 12,243,987 km (0.045 R)
• M48: 12,368,004 km (0.076 R)
• M49: 13,400,528 km (0.071 R)
• M50: 13,940,128 km (0.106 R)
• M51: 14,225,561 km (0.097 R)
• M52: 14,565,597 km (0.118 R)
• M53: 15,120,306 km (0.086 R)
• M54: 15,280,076 km (0.111 R)
• M55: 15,628,190 km (0.089 R)
• M56: 15,762,828 km (0.062 R)
• M57: 16,114,533 km (0.113 R)
• M58: 16,660,715 km (0.108 R)
• M59: 17,102,178 km (0.098 R)
• M60: 17,463,607 km (0.115 R)
• M61: 17,715,380 km (0.11 R)
• M62: 17,940,076 km (0.059 R)
• M63: 18,222,367 km (0.036 R)
• M64: 18,677,145 km (0.061 R)
• M65: 18,820,011 km (0.076 R)
• M66: 18,905,880 km (0.12 R)
• M67: 19,164,385 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.1

Radius: 8.4

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.62 AU - 6.28 AU

Year: 8484 Days

Day: 13 Hours

Environment

Temp: -219 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 83,338,964 km

• M1: 105,766 km (0.119 R)
• M2: 171,140 km (0.102 R)
• M3: 637,885 km (0.095 R)
• M4: 1,032,525 km (0.118 R)
• M5: 1,474,137 km (0.094 R)
• M6: 1,573,171 km (0.091 R)
• M7: 2,190,711 km (0.077 R)
• M8: 2,537,329 km (0.096 R)
• M9: 2,827,101 km (0.09 R)
• M10: 2,951,117 km (0.108 R)
• M11: 3,281,728 km (0.097 R)
• M12: 3,517,794 km (0.055 R)
• M13: 3,840,925 km (0.1 R)
• M14: 4,061,881 km (0.081 R)
• M15: 4,201,905 km (0.109 R)
• M16: 4,544,933 km (0.115 R)
• M17: 5,349,321 km (0.097 R)
• M18: 5,410,656 km (0.064 R)
• M19: 5,596,157 km (0.112 R)
• M20: 5,878,299 km (0.094 R)
• M21: 6,752,399 km (0.098 R)
• M22: 6,818,671 km (0.05 R)
• M23: 6,985,622 km (0.102 R)
• M24: 7,255,497 km (0.084 R)
• M25: 7,701,298 km (0.097 R)
• M26: 8,085,466 km (0.072 R)
• M27: 8,368,804 km (0.065 R)
• M28: 8,440,013 km (0.076 R)
• M29: 8,619,381 km (0.072 R)
• M30: 8,691,337 km (0.076 R)
• M31: 8,799,796 km (0.117 R)
• M32: 9,275,068 km (0.082 R)
• M33: 9,385,920 km (0.092 R)
• M34: 9,534,471 km (0.048 R)
• M35: 10,866,789 km (0.1 R)
• M36: 11,534,893 km (0.084 R)
• M37: 11,974,262 km (0.106 R)
• M38: 12,297,244 km (0.059 R)
• M39: 14,039,461 km (0.081 R)
• M40: 14,337,310 km (0.075 R)
• M41: 14,422,731 km (0.089 R)
• M42: 14,508,450 km (0.068 R)
• M43: 14,766,357 km (0.119 R)
• M44: 14,895,909 km (0.107 R)
• M45: 15,243,275 km (0.088 R)
• M46: 15,945,936 km (0.074 R)
• M47: 16,435,271 km (0.108 R)
• M48: 16,614,340 km (0.029 R)
• M49: 17,565,333 km (0.078 R)
• M50: 18,487,454 km (0.102 R)
• M51: 19,236,491 km (0.068 R)
• M52: 20,378,521 km (0.109 R)
• M53: 20,522,883 km (0.075 R)
• M54: 20,667,544 km (0.111 R)
• M55: 20,860,825 km (0.106 R)
• M56: 21,152,092 km (0.094 R)
• M57: 21,444,556 km (0.097 R)
• M58: 21,591,461 km (0.086 R)
• M59: 22,777,622 km (0.076 R)
• M60: 23,077,566 km (0.096 R)
• M61: 24,340,920 km (0.111 R)
• M62: 24,442,946 km (0.047 R)
• M63: 24,698,758 km (0.061 R)
• M64: 25,678,624 km (0.108 R)
• M65: 25,990,835 km (0.087 R)
• M66: 27,996,344 km (0.084 R)
• M67: 28,532,353 km (0.055 R)
• M68: 29,288,570 km (0.118 R)
• M69: 30,160,726 km (0.064 R)
• M70: 31,707,568 km (0.039 R)
• M71: 32,715,558 km (0.096 R)
• M72: 32,771,807 km (0.063 R)
• M73: 33,166,895 km (0.05 R)
• M74: 33,620,326 km (0.096 R)
• M75: 34,418,730 km (0.088 R)
• M76: 34,533,322 km (0.075 R)
• M77: 35,512,291 km (0.108 R)
• M78: 36,383,698 km (0.103 R)
• M79: 37,144,553 km (0.078 R)
• M80: 37,556,396 km (0.119 R)
• M81: 37,615,487 km (0.078 R)
• M82: 38,860,740 km (0.042 R)
• M83: 39,278,866 km (0.091 R)
• M84: 39,939,041 km (0.084 R)
• M85: 40,300,619 km (0.095 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.2

Radius: 3.9

Gravity: 61.81 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 6.95 AU - 10.67 AU

Year: 17438 Days

Day: 21.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 83,338,964 km

• M1: 51,013 km (0.077 R)
• M2: 75,697 km (0.112 R)
• M3: 283,189 km (0.071 R)
• M4: 390,600 km (0.047 R)
• M5: 449,242 km (0.094 R)
• M6: 553,512 km (0.084 R)
• M7: 665,561 km (0.078 R)
• M8: 784,790 km (0.106 R)
• M9: 1,476,830 km (0.06 R)
• M10: 1,538,614 km (0.081 R)
• M11: 1,664,426 km (0.102 R)
• M12: 2,200,734 km (0.068 R)
• M13: 2,635,166 km (0.094 R)
• M14: 2,900,703 km (0.111 R)
• M15: 2,939,299 km (0.108 R)
• M16: 3,498,047 km (0.044 R)
• M17: 3,916,622 km (0.119 R)
• M18: 4,175,426 km (0.082 R)
• M19: 4,984,601 km (0.118 R)
• M20: 5,646,422 km (0.076 R)
• M21: 6,036,872 km (0.107 R)
• M22: 6,335,320 km (0.105 R)
• M23: 6,638,705 km (0.117 R)
• M24: 7,050,548 km (0.104 R)
• M25: 8,500,301 km (0.106 R)
• M26: 9,059,946 km (0.117 R)
• M27: 9,344,182 km (0.109 R)
• M28: 9,863,287 km (0.086 R)
• M29: 10,629,378 km (0.119 R)
• M30: 10,989,460 km (0.109 R)
• M31: 11,721,292 km (0.05 R)
• M32: 12,721,504 km (0.117 R)
• M33: 12,912,091 km (0.097 R)
• M34: 13,360,436 km (0.11 R)
• M35: 13,683,867 km (0.108 R)
• M36: 15,136,911 km (0.12 R)
• M37: 15,406,337 km (0.06 R)
• M38: 15,745,325 km (0.086 R)
• M39: 16,292,854 km (0.105 R)
• M40: 17,477,070 km (0.101 R)
• M41: 17,830,570 km (0.098 R)
• M42: 17,901,480 km (0.081 R)
• M43: 18,329,330 km (0.106 R)
• M44: 19,633,225 km (0.072 R)
• M45: 22,023,649 km (0.098 R)
• M46: 22,558,611 km (0.056 R)
• M47: 23,641,550 km (0.083 R)
• M48: 23,719,490 km (0.096 R)
• M49: 24,425,293 km (0.11 R)
• M50: 27,153,061 km (0.064 R)
• M51: 27,234,741 km (0.12 R)
• M52: 27,973,605 km (0.101 R)
• M53: 28,469,821 km (0.041 R)
• M54: 28,635,875 km (0.04 R)
• M55: 30,993,986 km (0.116 R)
• M56: 31,679,144 km (0.118 R)
• M57: 33,501,246 km (0.044 R)
• M58: 33,588,761 km (0.081 R)
• M59: 34,204,207 km (0.076 R)
• M60: 35,535,478 km (0.087 R)
• M61: 36,162,443 km (0.042 R)
• M62: 37,700,459 km (0.074 R)
• M63: 39,907,626 km (0.044 R)
• M64: 40,372,725 km (0.119 R)
• M65: 41,214,513 km (0.09 R)
• M66: 42,725,002 km (0.039 R)
• M67: 44,061,659 km (0.072 R)
• M68: 44,349,785 km (0.106 R)
• M69: 45,605,808 km (0.067 R)
• M70: 45,800,136 km (0.115 R)
• M71: 45,994,613 km (0.104 R)
• M72: 47,462,468 km (0.099 R)
• M73: 48,647,881 km (0.049 R)
• M74: 49,842,869 km (0.071 R)
• M75: 50,443,953 km (0.089 R)
• M76: 50,846,072 km (0.115 R)
• M77: 54,615,490 km (0.078 R)
• M78: 55,442,317 km (0.096 R)
• M79: 56,585,843 km (0.107 R)
• M80: 57,212,808 km (0.104 R)
• M81: 60,062,797 km (0.118 R)
• M82: 62,526,824 km (0.067 R)
• M83: 63,933,941 km (0.115 R)
• M84: 65,899,657 km (0.086 R)
• M85: 68,996,483 km (0.101 R)
• M86: 69,666,232 km (0.096 R)
• M87: 70,001,930 km (0.098 R)
• M88: 71,124,662 km (0.084 R)
• M89: 73,615,766 km (0.223 R)
• M90: 75,675,130 km (0.186 R)
• M91: 75,905,212 km (0.113 R)
• M92: 76,135,443 km (0.105 R)
• M93: 76,250,633 km (0.052 R)
• M94: 76,596,503 km (0.207 R)
• M95: 76,827,482 km (0.141 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.1

Radius: 7.3

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 9.2 AU - 12.52 AU

Year: 23866 Days

Day: 21.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 83,338,964 km

• M1: 93,349 km (0.074 R)
• M2: 186,848 km (0.11 R)
• M3: 707,448 km (0.099 R)
• M4: 1,502,262 km (0.082 R)
• M5: 1,699,133 km (0.08 R)
• M6: 1,800,710 km (0.11 R)
• M7: 2,376,063 km (0.096 R)
• M8: 2,451,760 km (0.083 R)
• M9: 2,882,901 km (0.101 R)
• M10: 4,266,082 km (0.096 R)
• M11: 4,358,534 km (0.1 R)
• M12: 4,639,778 km (0.119 R)
• M13: 4,687,350 km (0.102 R)
• M14: 5,368,768 km (0.097 R)
• M15: 5,418,734 km (0.108 R)
• M16: 5,670,358 km (0.065 R)
• M17: 6,876,715 km (0.026 R)
• M18: 7,314,438 km (0.119 R)
• M19: 7,761,287 km (0.115 R)
• M20: 8,044,925 km (0.115 R)
• M21: 8,274,408 km (0.026 R)
• M22: 8,739,657 km (0.095 R)
• M23: 8,975,573 km (0.094 R)
• M24: 9,153,894 km (0.084 R)
• M25: 9,273,422 km (0.059 R)
• M26: 9,574,413 km (0.059 R)
• M27: 10,124,485 km (0.095 R)
• M28: 10,372,219 km (0.09 R)
• M29: 10,434,451 km (0.096 R)
• M30: 10,873,671 km (0.102 R)
• M31: 12,030,661 km (0.042 R)
• M32: 12,293,055 km (0.117 R)
• M33: 12,491,123 km (0.106 R)
• M34: 13,497,169 km (0.115 R)
• M35: 15,372,677 km (0.071 R)
• M36: 16,594,892 km (0.038 R)
• M37: 19,900,257 km (0.117 R)
• M38: 20,600,674 km (0.096 R)
• M39: 20,993,368 km (0.073 R)
• M40: 22,669,313 km (0.111 R)
• M41: 22,993,342 km (0.098 R)
• M42: 23,074,724 km (0.108 R)
• M43: 23,400,697 km (0.083 R)
• M44: 23,564,208 km (0.116 R)
• M45: 23,974,854 km (0.118 R)
• M46: 24,553,648 km (0.096 R)
• M47: 26,829,032 km (0.094 R)
• M48: 27,343,798 km (0.12 R)
• M49: 28,383,054 km (0.098 R)
• M50: 31,667,775 km (0.078 R)
• M51: 32,850,196 km (0.077 R)
• M52: 33,125,157 km (0.111 R)
• M53: 33,492,869 km (0.09 R)
• M54: 35,445,570 km (0.094 R)
• M55: 39,362,790 km (0.117 R)
• M56: 41,817,990 km (0.09 R)
• M57: 42,514,219 km (0.088 R)
• M58: 42,614,001 km (0.095 R)
• M59: 44,120,002 km (0.057 R)
• M60: 45,745,682 km (0.042 R)
• M61: 45,847,858 km (0.102 R)
• M62: 46,668,701 km (0.111 R)
• M63: 46,874,548 km (0.058 R)
• M64: 48,012,689 km (0.101 R)
• M65: 48,116,510 km (0.067 R)
• M66: 49,055,236 km (0.064 R)
• M67: 49,264,524 km (0.12 R)
• M68: 49,684,295 km (0.12 R)
• M69: 49,999,797 km (0.114 R)
• M70: 51,268,686 km (0.087 R)
• M71: 52,227,160 km (0.103 R)
• M72: 53,084,206 km (0.093 R)
• M73: 54,378,527 km (0.081 R)
• M74: 55,138,334 km (0.082 R)
• M75: 56,010,939 km (0.043 R)
• M76: 57,328,298 km (0.104 R)
• M77: 60,105,582 km (0.088 R)
• M78: 62,019,088 km (0.075 R)
• M79: 62,245,580 km (0.103 R)
• M80: 62,699,310 km (0.086 R)
• M81: 65,099,009 km (0.119 R)
• M82: 66,021,131 km (0.072 R)
• M83: 68,930,360 km (0.107 R)
• M84: 70,814,246 km (0.106 R)
• M85: 71,881,328 km (0.113 R)
• M86: 72,238,119 km (0.064 R)
• M87: 74,512,007 km (0.068 R)
• M88: 74,632,283 km (0.118 R)
• M89: 77,052,328 km (0.095 R)
• M90: 77,174,101 km (0.066 R)
• M91: 79,375,134 km (0.069 R)
• M92: 80,236,818 km (0.104 R)
• M93: 80,360,087 km (0.097 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: 486 - 14,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit