🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.49 AU - 0.77 AU

Year: 184 Days

Day: 37.2 Hours

Environment

Temp: 202 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.94 AU - 0.94 AU

Year: 336 Days

Day: 18.9 Hours

Environment

Temp: 22 °C

Axial Tilt: 4.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,651,340 km

• M1: 26,778 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.39 AU - 1.81 AU

Year: 747 Days

Day: 14.3 Hours

Environment

Temp: -45 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678

Radius: 11.8

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.72 AU - 5.82 AU

Year: 4464 Days

Day: 14.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 65,651,340 km

• M1: 170,392 km (0.107 R)
• M2: 328,517 km (0.092 R)
• M3: 575,204 km (0.105 R)
• M4: 705,504 km (0.114 R)
• M5: 1,091,017 km (0.092 R)
• M6: 1,358,648 km (0.105 R)
• M7: 1,508,096 km (0.045 R)
• M8: 1,775,278 km (0.05 R)
• M9: 1,939,686 km (0.074 R)
• M10: 2,355,119 km (0.039 R)
• M11: 2,647,733 km (0.109 R)
• M12: 2,741,680 km (0.117 R)
• M13: 2,932,866 km (0.067 R)
• M14: 3,030,105 km (0.12 R)
• M15: 3,512,408 km (0.056 R)
• M16: 3,762,686 km (0.106 R)
• M17: 4,413,885 km (0.034 R)
• M18: 5,123,577 km (0.114 R)
• M19: 5,288,883 km (0.117 R)
• M20: 5,673,200 km (0.117 R)
• M21: 5,770,738 km (0.105 R)
• M22: 6,342,501 km (0.07 R)
• M23: 6,596,668 km (0.088 R)
• M24: 6,828,395 km (0.101 R)
• M25: 7,755,004 km (0.096 R)
• M26: 7,945,143 km (0.079 R)
• M27: 8,136,778 km (0.089 R)
• M28: 8,496,710 km (0.103 R)
• M29: 8,636,584 km (0.083 R)
• M30: 9,232,433 km (0.076 R)
• M31: 9,695,438 km (0.112 R)
• M32: 9,929,708 km (0.072 R)
• M33: 10,825,052 km (0.048 R)
• M34: 11,068,148 km (0.087 R)
• M35: 11,777,242 km (0.049 R)
• M36: 12,532,861 km (0.073 R)
• M37: 13,110,009 km (0.067 R)
• M38: 13,597,549 km (0.076 R)
• M39: 13,728,447 km (0.117 R)
• M40: 13,892,855 km (0.109 R)
• M41: 14,157,194 km (0.099 R)
• M42: 14,356,608 km (0.095 R)
• M43: 15,367,292 km (0.109 R)
• M44: 15,915,717 km (0.095 R)
• M45: 16,192,474 km (0.065 R)
• M46: 16,470,576 km (0.101 R)
• M47: 16,820,635 km (0.086 R)
• M48: 17,993,183 km (0.05 R)
• M49: 18,245,405 km (0.069 R)
• M50: 18,353,714 km (0.112 R)
• M51: 18,898,998 km (0.111 R)
• M52: 19,081,956 km (0.105 R)
• M53: 19,560,370 km (0.112 R)
• M54: 20,005,574 km (0.106 R)
• M55: 20,379,120 km (0.116 R)
• M56: 20,641,963 km (0.056 R)
• M57: 21,360,930 km (0.038 R)
• M58: 21,742,704 km (0.094 R)
• M59: 22,165,318 km (0.095 R)
• M60: 22,474,387 km (0.073 R)
• M61: 22,745,907 km (0.091 R)
• M62: 23,018,624 km (0.1 R)
• M63: 23,174,954 km (0.055 R)
• M64: 24,040,827 km (0.112 R)
• M65: 24,438,009 km (0.072 R)
• M66: 24,597,480 km (0.098 R)
• M67: 24,877,378 km (0.066 R)
• M68: 25,118,081 km (0.091 R)
• M69: 25,399,923 km (0.113 R)
• M70: 26,007,440 km (0.074 R)
• M71: 26,374,254 km (0.051 R)
• M72: 26,660,734 km (0.117 R)
• M73: 27,609,334 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.7

Radius: 11.8

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7 AU - 7.04 AU

Year: 6863 Days

Day: 5.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 65,651,340 km

• M1: 402,269 km (0.111 R)
• M2: 512,522 km (0.094 R)
• M3: 635,342 km (0.118 R)
• M4: 884,123 km (0.091 R)
• M5: 1,248,095 km (0.103 R)
• M6: 1,333,515 km (0.117 R)
• M7: 1,565,093 km (0.088 R)
• M8: 1,810,134 km (0.058 R)
• M9: 2,531,196 km (0.09 R)
• M10: 2,641,001 km (0.075 R)
• M11: 2,752,451 km (0.069 R)
• M12: 2,865,697 km (0.091 R)
• M13: 2,957,251 km (0.08 R)
• M14: 3,073,189 km (0.114 R)
• M15: 3,381,959 km (0.066 R)
• M16: 4,210,582 km (0.112 R)
• M17: 5,127,766 km (0.067 R)
• M18: 5,267,790 km (0.113 R)
• M19: 5,466,007 km (0.052 R)
• M20: 5,580,449 km (0.109 R)
• M21: 5,695,640 km (0.089 R)
• M22: 5,899,093 km (0.076 R)
• M23: 6,433,606 km (0.114 R)
• M24: 6,737,290 km (0.116 R)
• M25: 7,045,611 km (0.049 R)
• M26: 7,170,376 km (0.074 R)
• M27: 7,358,719 km (0.069 R)
• M28: 7,804,820 km (0.102 R)
• M29: 7,966,236 km (0.088 R)
• M30: 8,226,836 km (0.082 R)
• M31: 8,523,488 km (0.09 R)
• M32: 9,537,463 km (0.075 R)
• M33: 9,710,248 km (0.119 R)
• M34: 9,988,650 km (0.108 R)
• M35: 10,696,547 km (0.09 R)
• M36: 11,092,832 km (0.116 R)
• M37: 11,714,860 km (0.091 R)
• M38: 11,825,712 km (0.101 R)
• M39: 12,048,613 km (0.098 R)
• M40: 12,687,844 km (0.059 R)
• M41: 12,763,840 km (0.119 R)
• M42: 13,609,068 km (0.03 R)
• M43: 13,881,785 km (0.054 R)
• M44: 14,512,041 km (0.092 R)
• M45: 14,671,063 km (0.04 R)
• M46: 15,071,088 km (0.064 R)
• M47: 15,474,853 km (0.093 R)
• M48: 15,800,378 km (0.073 R)
• M49: 15,964,038 km (0.049 R)
• M50: 16,087,157 km (0.095 R)
• M51: 18,227,603 km (0.062 R)
• M52: 18,399,192 km (0.08 R)
• M53: 18,960,932 km (0.096 R)
• M54: 19,659,853 km (0.061 R)
• M55: 19,879,911 km (0.1 R)
• M56: 21,989,092 km (0.096 R)
• M57: 22,539,014 km (0.109 R)
• M58: 22,631,166 km (0.102 R)
• M59: 23,186,174 km (0.113 R)
• M60: 23,325,749 km (0.11 R)
• M61: 23,605,497 km (0.113 R)
• M62: 23,839,617 km (0.076 R)
• M63: 24,262,830 km (0.104 R)
• M64: 24,688,585 km (0.116 R)
• M65: 24,831,003 km (0.082 R)
• M66: 25,212,178 km (0.107 R)
• M67: 27,196,295 km (0.079 R)
• M68: 27,984,077 km (0.07 R)
• M69: 28,331,144 km (0.105 R)
• M70: 29,733,474 km (0.044 R)
• M71: 30,239,863 km (0.102 R)
• M72: 30,646,919 km (0.064 R)
• M73: 31,466,566 km (0.072 R)
• M74: 31,827,545 km (0.076 R)
• M75: 32,397,364 km (0.103 R)
• M76: 33,022,982 km (0.071 R)
• M77: 33,127,551 km (0.056 R)
• M78: 33,599,831 km (0.111 R)
• M79: 33,705,148 km (0.089 R)
• M80: 35,511,094 km (0.105 R)
• M81: 35,833,178 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.2

Radius: 9.3

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.4 AU - 7.74 AU

Year: 6936 Days

Day: 11.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 65,651,340 km

• M1: 161,715 km (0.118 R)
• M2: 313,108 km (0.109 R)
• M3: 400,174 km (0.12 R)
• M4: 522,994 km (0.059 R)
• M5: 674,088 km (0.117 R)
• M6: 747,840 km (0.105 R)
• M7: 1,003,353 km (0.1 R)
• M8: 1,088,923 km (0.119 R)
• M9: 1,323,343 km (0.104 R)
• M10: 1,417,889 km (0.041 R)
• M11: 1,903,633 km (0.094 R)
• M12: 2,300,067 km (0.107 R)
• M13: 2,626,340 km (0.09 R)
• M14: 2,722,232 km (0.051 R)
• M15: 2,794,937 km (0.111 R)
• M16: 3,042,222 km (0.059 R)
• M17: 3,194,064 km (0.096 R)
• M18: 3,296,688 km (0.109 R)
• M19: 3,691,178 km (0.098 R)
• M20: 3,880,569 km (0.103 R)
• M21: 4,184,701 km (0.115 R)
• M22: 4,268,925 km (0.098 R)
• M23: 4,382,170 km (0.118 R)
• M24: 4,757,212 km (0.096 R)
• M25: 5,507,446 km (0.09 R)
• M26: 5,693,097 km (0.061 R)
• M27: 6,520,971 km (0.069 R)
• M28: 6,651,570 km (0.089 R)
• M29: 7,082,412 km (0.112 R)
• M30: 7,250,560 km (0.096 R)
• M31: 7,762,933 km (0.109 R)
• M32: 7,866,903 km (0.105 R)
• M33: 8,251,819 km (0.103 R)
• M34: 8,428,793 km (0.1 R)
• M35: 8,571,210 km (0.117 R)
• M36: 8,930,993 km (0.118 R)
• M37: 9,702,619 km (0.086 R)
• M38: 10,726,018 km (0.105 R)
• M39: 11,664,146 km (0.091 R)
• M40: 11,783,226 km (0.116 R)
• M41: 12,384,909 km (0.117 R)
• M42: 13,534,718 km (0.106 R)
• M43: 13,701,819 km (0.053 R)
• M44: 13,911,555 km (0.109 R)
• M45: 14,589,981 km (0.081 R)
• M46: 14,761,271 km (0.034 R)
• M47: 15,978,997 km (0.093 R)
• M48: 16,377,227 km (0.082 R)
• M49: 16,958,115 km (0.102 R)
• M50: 17,500,557 km (0.089 R)
• M51: 18,463,220 km (0.093 R)
• M52: 19,443,086 km (0.108 R)
• M53: 19,537,332 km (0.09 R)
• M54: 19,678,852 km (0.114 R)
• M55: 19,868,243 km (0.049 R)
• M56: 20,439,707 km (0.071 R)
• M57: 21,210,285 km (0.107 R)
• M58: 21,794,465 km (0.114 R)
• M59: 22,088,574 km (0.106 R)
• M60: 22,581,499 km (0.094 R)
• M61: 22,978,532 km (0.096 R)
• M62: 23,779,479 km (0.096 R)
• M63: 25,460,361 km (0.064 R)
• M64: 25,977,221 km (0.118 R)
• M65: 27,126,582 km (0.114 R)
• M66: 27,231,899 km (0.107 R)
• M67: 28,185,735 km (0.093 R)
• M68: 28,506,173 km (0.112 R)
• M69: 29,042,781 km (0.057 R)
• M70: 30,344,432 km (0.106 R)
• M71: 31,498,879 km (0.107 R)
• M72: 32,053,588 km (0.078 R)
• M73: 33,850,557 km (0.094 R)
• M74: 34,589,870 km (0.098 R)
• M75: 34,932,898 km (0.115 R)
• M76: 35,162,232 km (0.092 R)
• M77: 35,622,395 km (0.113 R)
• M78: 35,853,224 km (0.065 R)
• M79: 36,839,672 km (0.094 R)
• M80: 37,776,305 km (0.052 R)
• M81: 38,070,564 km (0.104 R)
• M82: 38,365,720 km (0.098 R)
• M83: 38,720,716 km (0.076 R)
• M84: 38,898,738 km (0.115 R)
• M85: 39,017,518 km (0.05 R)
• M86: 39,136,299 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.9

Radius: 9.6

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.37 AU - 9.53 AU

Year: 10718 Days

Day: 10.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 65,651,340 km

• M1: 187,147 km (0.105 R)
• M2: 248,781 km (0.117 R)
• M3: 406,308 km (0.062 R)
• M4: 556,205 km (0.107 R)
• M5: 693,685 km (0.117 R)
• M6: 791,971 km (0.06 R)
• M7: 1,003,503 km (0.111 R)
• M8: 1,396,347 km (0.066 R)
• M9: 2,069,387 km (0.072 R)
• M10: 2,239,630 km (0.079 R)
• M11: 2,619,908 km (0.062 R)
• M12: 3,130,784 km (0.072 R)
• M13: 3,355,181 km (0.117 R)
• M14: 3,760,591 km (0.051 R)
• M15: 3,909,292 km (0.088 R)
• M16: 4,243,044 km (0.096 R)
• M17: 4,554,657 km (0.095 R)
• M18: 4,617,787 km (0.113 R)
• M19: 4,841,436 km (0.051 R)
• M20: 5,365,776 km (0.104 R)
• M21: 5,736,779 km (0.069 R)
• M22: 5,805,145 km (0.094 R)
• M23: 6,503,767 km (0.12 R)
• M24: 6,935,806 km (0.077 R)
• M25: 7,192,067 km (0.115 R)
• M26: 7,339,870 km (0.079 R)
• M27: 8,325,421 km (0.11 R)
• M28: 8,403,062 km (0.075 R)
• M29: 8,794,260 km (0.097 R)
• M30: 9,231,685 km (0.073 R)
• M31: 9,311,869 km (0.117 R)
• M32: 9,392,502 km (0.105 R)
• M33: 9,798,511 km (0.084 R)
• M34: 10,460,182 km (0.044 R)
• M35: 10,838,815 km (0.107 R)
• M36: 11,008,459 km (0.101 R)
• M37: 11,350,589 km (0.066 R)
• M38: 11,479,692 km (0.08 R)
• M39: 11,652,627 km (0.078 R)
• M40: 12,842,977 km (0.077 R)
• M41: 13,429,850 km (0.104 R)
• M42: 13,841,244 km (0.119 R)
• M43: 15,337,372 km (0.102 R)
• M44: 15,575,682 km (0.065 R)
• M45: 16,492,866 km (0.073 R)
• M46: 16,688,091 km (0.047 R)
• M47: 17,477,070 km (0.085 R)
• M48: 17,626,369 km (0.119 R)
• M49: 17,876,048 km (0.074 R)
• M50: 18,632,265 km (0.116 R)
• M51: 18,886,731 km (0.116 R)
• M52: 19,193,556 km (0.086 R)
• M53: 19,502,027 km (0.087 R)
• M54: 19,915,965 km (0.09 R)
• M55: 20,647,049 km (0.026 R)
• M56: 21,174,831 km (0.109 R)
• M57: 21,760,357 km (0.086 R)
• M58: 23,220,282 km (0.119 R)
• M59: 25,497,012 km (0.101 R)
• M60: 25,722,905 km (0.106 R)
• M61: 26,919,838 km (0.075 R)
• M62: 31,340,455 km (0.064 R)
• M63: 31,582,354 km (0.112 R)
• M64: 32,068,398 km (0.051 R)
• M65: 32,190,171 km (0.053 R)
• M66: 32,251,207 km (0.089 R)
• M67: 32,373,278 km (0.101 R)
• M68: 32,801,876 km (0.102 R)
• M69: 34,098,740 km (0.111 R)
• M70: 35,098,054 km (0.118 R)
• M71: 35,475,340 km (0.11 R)
• M72: 36,107,092 km (0.032 R)
• M73: 36,806,312 km (0.062 R)
• M74: 37,317,638 km (0.107 R)
• M75: 38,735,825 km (0.115 R)
• M76: 39,451,502 km (0.111 R)
• M77: 39,909,271 km (0.075 R)
• M78: 40,434,509 km (0.093 R)
• M79: 41,558,288 km (0.103 R)
• M80: 42,826,430 km (0.094 R)
• M81: 43,296,915 km (0.111 R)
• M82: 43,499,022 km (0.118 R)
• M83: 44,786,461 km (0.045 R)
• M84: 44,922,745 km (0.073 R)
• M85: 45,400,710 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.7

Radius: 10.7

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 8.76 AU - 13.54 AU

Year: 13737 Days

Day: 13.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 65,651,340 km

• M1: 198,516 km (0.097 R)
• M2: 304,731 km (0.055 R)
• M3: 456,573 km (0.112 R)
• M4: 800,648 km (0.086 R)
• M5: 887,714 km (0.047 R)
• M6: 1,024,745 km (0.075 R)
• M7: 1,144,573 km (0.09 R)
• M8: 1,243,906 km (0.101 R)
• M9: 1,320,500 km (0.026 R)
• M10: 2,112,472 km (0.095 R)
• M11: 2,236,039 km (0.067 R)
• M12: 2,490,805 km (0.1 R)
• M13: 3,977,508 km (0.107 R)
• M14: 4,208,786 km (0.111 R)
• M15: 4,766,039 km (0.081 R)
• M16: 4,888,410 km (0.05 R)
• M17: 5,053,416 km (0.102 R)
• M18: 5,220,218 km (0.037 R)
• M19: 5,304,292 km (0.04 R)
• M20: 6,037,172 km (0.106 R)
• M21: 6,214,296 km (0.092 R)
• M22: 6,755,989 km (0.113 R)
• M23: 6,986,221 km (0.088 R)
• M24: 7,079,121 km (0.117 R)
• M25: 7,932,876 km (0.037 R)
• M26: 8,322,878 km (0.07 R)
• M27: 8,520,197 km (0.115 R)
• M28: 9,376,196 km (0.052 R)
• M29: 9,736,577 km (0.101 R)
• M30: 9,840,398 km (0.06 R)
• M31: 10,154,105 km (0.088 R)
• M32: 10,630,873 km (0.103 R)
• M33: 10,737,686 km (0.072 R)
• M34: 10,952,659 km (0.117 R)
• M35: 11,277,735 km (0.092 R)
• M36: 12,723,149 km (0.104 R)
• M37: 13,064,980 km (0.117 R)
• M38: 14,226,159 km (0.047 R)
• M39: 14,640,246 km (0.085 R)
• M40: 16,894,836 km (0.086 R)
• M41: 17,712,388 km (0.092 R)
• M42: 18,995,190 km (0.089 R)
• M43: 19,451,314 km (0.105 R)
• M44: 20,507,325 km (0.112 R)
• M45: 21,446,500 km (0.085 R)
• M46: 22,125,974 km (0.086 R)
• M47: 22,194,340 km (0.1 R)
• M48: 22,881,593 km (0.062 R)
• M49: 23,227,762 km (0.062 R)
• M50: 24,347,502 km (0.11 R)
• M51: 24,630,093 km (0.114 R)
• M52: 25,127,356 km (0.115 R)
• M53: 25,843,481 km (0.066 R)
• M54: 27,222,624 km (0.076 R)
• M55: 27,295,927 km (0.104 R)
• M56: 27,589,587 km (0.084 R)
• M57: 27,663,040 km (0.085 R)
• M58: 28,476,703 km (0.06 R)
• M59: 29,223,346 km (0.073 R)
• M60: 29,976,272 km (0.109 R)
• M61: 30,659,336 km (0.065 R)
• M62: 31,424,379 km (0.11 R)
• M63: 31,578,166 km (0.08 R)
• M64: 31,963,679 km (0.052 R)
• M65: 34,151,249 km (0.106 R)
• M66: 35,342,946 km (0.057 R)
• M67: 37,440,757 km (0.114 R)
• M68: 39,661,537 km (0.057 R)
• M69: 39,827,740 km (0.052 R)
• M70: 41,840,131 km (0.097 R)
• M71: 45,440,802 km (0.113 R)
• M72: 46,838,495 km (0.065 R)
• M73: 46,926,309 km (0.079 R)
• M74: 47,014,123 km (0.059 R)
• M75: 47,278,013 km (0.106 R)
• M76: 48,427,524 km (0.077 R)
• M77: 50,303,780 km (0.094 R)
• M78: 50,573,804 km (0.11 R)
• M79: 51,567,882 km (0.034 R)
• M80: 52,477,138 km (0.096 R)
• M81: 53,116,669 km (0.087 R)
• M82: 57,196,053 km (0.095 R)
• M83: 57,290,001 km (0.113 R)
• M84: 58,137,173 km (0.085 R)
• M85: 61,567,303 km (0.071 R)
• M86: 63,015,859 km (0.054 R)
• M87: 65,356,767 km (0.111 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 192 - 17,110 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit