🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.58 AU - 1.88 AU

Year: 811 Days

Day: 39.9 Hours

Environment

Temp: -34 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.73 AU - 1.85 AU

Year: 854 Days

Day: 47.6 Hours

Environment

Temp: -42 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.7

Radius: 12.5

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 5.06 AU - 6.84 AU

Year: 5173 Days

Day: 14.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 69,871,587 km

• M1: 259,702 km (0.056 R)
• M2: 373,695 km (0.074 R)
• M3: 460,462 km (0.066 R)
• M4: 648,656 km (0.094 R)
• M5: 734,376 km (0.07 R)
• M6: 961,166 km (0.054 R)
• M7: 1,180,776 km (0.101 R)
• M8: 1,336,807 km (0.104 R)
• M9: 1,567,187 km (0.114 R)
• M10: 2,029,894 km (0.079 R)
• M11: 2,474,050 km (0.039 R)
• M12: 2,991,209 km (0.099 R)
• M13: 3,120,462 km (0.084 R)
• M14: 3,817,887 km (0.081 R)
• M15: 4,076,841 km (0.081 R)
• M16: 4,464,000 km (0.117 R)
• M17: 5,615,754 km (0.082 R)
• M18: 6,156,252 km (0.086 R)
• M19: 6,321,557 km (0.047 R)
• M20: 6,685,080 km (0.088 R)
• M21: 6,798,326 km (0.097 R)
• M22: 6,912,170 km (0.075 R)
• M23: 7,026,762 km (0.114 R)
• M24: 7,170,824 km (0.12 R)
• M25: 7,608,847 km (0.067 R)
• M26: 7,875,879 km (0.098 R)
• M27: 8,327,964 km (0.098 R)
• M28: 8,419,368 km (0.081 R)
• M29: 8,912,592 km (0.099 R)
• M30: 9,351,961 km (0.1 R)
• M31: 9,574,413 km (0.119 R)
• M32: 9,670,156 km (0.111 R)
• M33: 10,382,840 km (0.1 R)
• M34: 10,613,071 km (0.092 R)
• M35: 12,376,531 km (0.095 R)
• M36: 12,515,956 km (0.119 R)
• M37: 12,902,068 km (0.105 R)
• M38: 13,256,466 km (0.104 R)
• M39: 13,542,198 km (0.081 R)
• M40: 13,685,961 km (0.088 R)
• M41: 13,902,429 km (0.098 R)
• M42: 14,047,390 km (0.101 R)
• M43: 14,156,447 km (0.115 R)
• M44: 14,448,611 km (0.105 R)
• M45: 15,486,970 km (0.096 R)
• M46: 16,472,670 km (0.102 R)
• M47: 16,626,158 km (0.094 R)
• M48: 16,780,094 km (0.069 R)
• M49: 17,205,850 km (0.109 R)
• M50: 17,322,536 km (0.068 R)
• M51: 17,870,812 km (0.07 R)
• M52: 18,864,142 km (0.034 R)
• M53: 19,185,777 km (0.035 R)
• M54: 19,306,802 km (0.058 R)
• M55: 19,387,585 km (0.111 R)
• M56: 19,509,208 km (0.084 R)
• M57: 19,997,795 km (0.098 R)
• M58: 20,161,455 km (0.09 R)
• M59: 20,821,032 km (0.065 R)
• M60: 21,278,502 km (0.08 R)
• M61: 22,076,607 km (0.115 R)
• M62: 22,373,110 km (0.104 R)
• M63: 22,628,324 km (0.046 R)
• M64: 22,927,370 km (0.08 R)
• M65: 23,184,678 km (0.101 R)
• M66: 23,658,903 km (0.101 R)
• M67: 24,441,749 km (0.095 R)
• M68: 24,616,928 km (0.051 R)
• M69: 25,676,530 km (0.067 R)
• M70: 25,810,121 km (0.055 R)
• M71: 26,301,550 km (0.085 R)
• M72: 27,067,192 km (0.084 R)
• M73: 27,157,698 km (0.097 R)
• M74: 27,293,832 km (0.08 R)
• M75: 27,384,638 km (0.114 R)
• M76: 27,703,282 km (0.102 R)
• M77: 28,023,122 km (0.061 R)
• M78: 28,758,844 km (0.054 R)
• M79: 29,036,498 km (0.032 R)
• M80: 29,361,424 km (0.104 R)
• M81: 31,004,159 km (0.084 R)
• M82: 31,288,694 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.9

Radius: 11.2

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.82 AU - 6.26 AU

Year: 5291 Days

Day: 8.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 69,871,587 km

• M1: 141,968 km (0.058 R)
• M2: 411,245 km (0.103 R)
• M3: 610,060 km (0.095 R)
• M4: 842,386 km (0.099 R)
• M5: 1,004,251 km (0.118 R)
• M6: 1,236,726 km (0.042 R)
• M7: 1,375,552 km (0.063 R)
• M8: 1,552,377 km (0.096 R)
• M9: 1,788,443 km (0.101 R)
• M10: 1,893,311 km (0.061 R)
• M11: 2,018,374 km (0.057 R)
• M12: 2,258,180 km (0.097 R)
• M13: 2,391,172 km (0.077 R)
• M14: 2,785,662 km (0.107 R)
• M15: 3,372,534 km (0.074 R)
• M16: 3,792,456 km (0.071 R)
• M17: 3,974,367 km (0.066 R)
• M18: 4,229,281 km (0.052 R)
• M19: 4,803,887 km (0.106 R)
• M20: 5,225,902 km (0.034 R)
• M21: 5,531,082 km (0.061 R)
• M22: 5,608,275 km (0.025 R)
• M23: 5,920,785 km (0.106 R)
• M24: 6,079,209 km (0.118 R)
• M25: 6,238,979 km (0.104 R)
• M26: 6,535,632 km (0.118 R)
• M27: 6,754,344 km (0.109 R)
• M28: 7,481,689 km (0.069 R)
• M29: 7,796,891 km (0.086 R)
• M30: 7,970,724 km (0.033 R)
• M31: 8,116,582 km (0.04 R)
• M32: 8,381,370 km (0.107 R)
• M33: 8,529,622 km (0.075 R)
• M34: 8,979,911 km (0.095 R)
• M35: 9,070,867 km (0.085 R)
• M36: 9,872,263 km (0.06 R)
• M37: 10,889,528 km (0.076 R)
• M38: 11,575,285 km (0.025 R)
• M39: 11,773,801 km (0.035 R)
• M40: 11,973,365 km (0.064 R)
• M41: 12,545,128 km (0.11 R)
• M42: 12,919,871 km (0.104 R)
• M43: 13,506,294 km (0.083 R)
• M44: 14,066,089 km (0.074 R)
• M45: 14,848,187 km (0.063 R)
• M46: 15,644,497 km (0.099 R)
• M47: 15,717,650 km (0.117 R)
• M48: 15,864,106 km (0.112 R)
• M49: 16,343,418 km (0.108 R)
• M50: 17,052,512 km (0.118 R)
• M51: 17,127,610 km (0.094 R)
• M52: 17,543,342 km (0.09 R)
• M53: 17,657,336 km (0.101 R)
• M54: 18,115,704 km (0.072 R)
• M55: 18,732,795 km (0.084 R)
• M56: 19,200,288 km (0.046 R)
• M57: 19,868,991 km (0.045 R)
• M58: 20,425,495 km (0.076 R)
• M59: 21,027,477 km (0.08 R)
• M60: 21,513,221 km (0.12 R)
• M61: 21,716,674 km (0.114 R)
• M62: 21,880,035 km (0.12 R)
• M63: 23,034,183 km (0.029 R)
• M64: 23,159,097 km (0.082 R)
• M65: 23,576,774 km (0.092 R)
• M66: 23,702,586 km (0.101 R)
• M67: 23,828,697 km (0.117 R)
• M68: 24,589,701 km (0.119 R)
• M69: 25,015,906 km (0.117 R)
• M70: 25,789,177 km (0.063 R)
• M71: 26,309,179 km (0.11 R)
• M72: 26,701,275 km (0.117 R)
• M73: 26,920,137 km (0.091 R)
• M74: 27,978,243 km (0.109 R)
• M75: 28,111,534 km (0.064 R)
• M76: 28,200,395 km (0.071 R)
• M77: 29,681,564 km (0.104 R)
• M78: 30,044,339 km (0.08 R)
• M79: 30,135,294 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607

Radius: 9.7

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 6.49 AU - 7.11 AU

Year: 6321 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 69,871,587 km

• M1: 136,284 km (0.095 R)
• M2: 238,459 km (0.035 R)
• M3: 305,030 km (0.112 R)
• M4: 432,487 km (0.058 R)
• M5: 604,824 km (0.057 R)
• M6: 667,655 km (0.118 R)
• M7: 1,141,432 km (0.078 R)
• M8: 1,205,160 km (0.085 R)
• M9: 1,542,803 km (0.054 R)
• M10: 1,704,369 km (0.074 R)
• M11: 1,833,920 km (0.104 R)
• M12: 2,468,066 km (0.089 R)
• M13: 2,809,149 km (0.105 R)
• M14: 2,896,813 km (0.039 R)
• M15: 3,074,984 km (0.045 R)
• M16: 3,142,752 km (0.075 R)
• M17: 3,302,672 km (0.103 R)
• M18: 3,488,922 km (0.109 R)
• M19: 3,607,104 km (0.061 R)
• M20: 3,678,761 km (0.118 R)
• M21: 3,823,273 km (0.086 R)
• M22: 3,994,263 km (0.083 R)
• M23: 4,093,297 km (0.1 R)
• M24: 4,293,459 km (0.115 R)
• M25: 4,471,480 km (0.116 R)
• M26: 5,046,385 km (0.093 R)
• M27: 5,506,847 km (0.118 R)
• M28: 5,783,902 km (0.111 R)
• M29: 5,896,101 km (0.083 R)
• M30: 6,122,592 km (0.108 R)
• M31: 6,208,162 km (0.101 R)
• M32: 6,323,053 km (0.064 R)
• M33: 6,819,120 km (0.117 R)
• M34: 6,907,981 km (0.039 R)
• M35: 7,086,900 km (0.119 R)
• M36: 8,004,084 km (0.114 R)
• M37: 8,223,545 km (0.115 R)
• M38: 8,413,085 km (0.097 R)
• M39: 9,814,368 km (0.084 R)
• M40: 9,881,239 km (0.066 R)
• M41: 10,972,854 km (0.115 R)
• M42: 11,042,268 km (0.078 R)
• M43: 11,532,799 km (0.096 R)
• M44: 12,066,415 km (0.059 R)
• M45: 12,210,029 km (0.092 R)
• M46: 12,571,607 km (0.12 R)
• M47: 13,714,834 km (0.112 R)
• M48: 13,827,182 km (0.076 R)
• M49: 14,968,015 km (0.095 R)
• M50: 15,393,920 km (0.042 R)
• M51: 15,706,131 km (0.096 R)
• M52: 15,784,520 km (0.078 R)
• M53: 16,138,768 km (0.099 R)
• M54: 16,775,307 km (0.042 R)
• M55: 17,096,493 km (0.096 R)
• M56: 17,177,127 km (0.106 R)
• M57: 17,338,842 km (0.1 R)
• M58: 18,899,896 km (0.025 R)
• M59: 19,739,439 km (0.07 R)
• M60: 20,334,240 km (0.104 R)
• M61: 20,978,259 km (0.079 R)
• M62: 21,847,273 km (0.026 R)
• M63: 23,262,020 km (0.035 R)
• M64: 23,440,939 km (0.085 R)
• M65: 23,935,360 km (0.078 R)
• M66: 24,342,416 km (0.101 R)
• M67: 24,706,238 km (0.049 R)
• M68: 24,980,301 km (0.08 R)
• M69: 25,301,189 km (0.084 R)
• M70: 25,439,118 km (0.102 R)
• M71: 26,365,428 km (0.078 R)
• M72: 26,458,627 km (0.11 R)
• M73: 27,020,367 km (0.051 R)
• M74: 30,276,814 km (0.087 R)
• M75: 31,061,006 km (0.059 R)
• M76: 31,307,394 km (0.047 R)
• M77: 31,406,128 km (0.069 R)
• M78: 31,901,447 km (0.105 R)
• M79: 32,050,446 km (0.074 R)
• M80: 32,249,711 km (0.088 R)
• M81: 33,402,661 km (0.087 R)
• M82: 33,908,302 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.1

Radius: 9.9

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 9.84 AU - 13.22 AU

Year: 13955 Days

Day: 5.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 80.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 69,871,587 km

• M1: 217,515 km (0.113 R)
• M2: 519,105 km (0.12 R)
• M3: 581,487 km (0.11 R)
• M4: 804,388 km (0.044 R)
• M5: 1,014,722 km (0.089 R)
• M6: 1,419,684 km (0.103 R)
• M7: 2,560,667 km (0.103 R)
• M8: 2,816,180 km (0.088 R)
• M9: 3,109,841 km (0.047 R)
• M10: 3,663,203 km (0.046 R)
• M11: 3,854,539 km (0.081 R)
• M12: 3,983,941 km (0.113 R)
• M13: 4,081,927 km (0.107 R)
• M14: 4,448,293 km (0.08 R)
• M15: 4,550,019 km (0.107 R)
• M16: 4,825,279 km (0.084 R)
• M17: 5,176,984 km (0.102 R)
• M18: 5,464,361 km (0.057 R)
• M19: 5,905,226 km (0.04 R)
• M20: 6,017,275 km (0.073 R)
• M21: 7,057,130 km (0.034 R)
• M22: 7,537,040 km (0.071 R)
• M23: 7,658,663 km (0.104 R)
• M24: 7,821,874 km (0.079 R)
• M25: 8,235,064 km (0.048 R)
• M26: 8,996,517 km (0.107 R)
• M27: 9,255,471 km (0.091 R)
• M28: 9,342,237 km (0.111 R)
• M29: 9,516,818 km (0.103 R)
• M30: 9,824,691 km (0.112 R)
• M31: 10,180,733 km (0.082 R)
• M32: 11,043,165 km (0.107 R)
• M33: 11,135,318 km (0.08 R)
• M34: 11,320,370 km (0.115 R)
• M35: 11,740,590 km (0.119 R)
• M36: 12,500,248 km (0.086 R)
• M37: 12,596,290 km (0.106 R)
• M38: 14,771,294 km (0.073 R)
• M39: 15,745,924 km (0.084 R)
• M40: 17,487,692 km (0.104 R)
• M41: 18,517,972 km (0.116 R)
• M42: 18,957,641 km (0.117 R)
• M43: 19,679,600 km (0.035 R)
• M44: 20,467,083 km (0.116 R)
• M45: 20,580,329 km (0.118 R)
• M46: 21,840,840 km (0.092 R)
• M47: 22,714,492 km (0.101 R)
• M48: 23,362,400 km (0.039 R)
• M49: 24,676,618 km (0.08 R)
• M50: 24,857,631 km (0.101 R)
• M51: 25,525,286 km (0.09 R)
• M52: 26,137,441 km (0.081 R)
• M53: 26,445,313 km (0.062 R)
• M54: 26,754,382 km (0.042 R)
• M55: 26,878,249 km (0.077 R)
• M56: 27,313,579 km (0.032 R)
• M57: 27,563,557 km (0.113 R)
• M58: 27,688,621 km (0.09 R)
• M59: 27,939,646 km (0.087 R)
• M60: 28,824,069 km (0.116 R)
• M61: 30,555,365 km (0.103 R)
• M62: 30,685,066 km (0.079 R)
• M63: 30,749,842 km (0.109 R)
• M64: 30,879,693 km (0.087 R)
• M65: 31,990,906 km (0.11 R)
• M66: 33,715,770 km (0.108 R)
• M67: 34,185,208 km (0.099 R)
• M68: 34,656,890 km (0.09 R)
• M69: 35,062,899 km (0.115 R)
• M70: 35,879,703 km (0.077 R)
• M71: 35,948,069 km (0.103 R)
• M72: 36,221,833 km (0.095 R)
• M73: 37,324,070 km (0.1 R)
• M74: 38,507,240 km (0.078 R)
• M75: 38,997,921 km (0.102 R)
• M76: 40,838,872 km (0.085 R)
• M77: 40,981,589 km (0.072 R)
• M78: 41,626,206 km (0.083 R)
• M79: 41,841,776 km (0.074 R)
• M80: 44,018,126 km (0.1 R)
• M81: 44,457,794 km (0.112 R)
• M82: 46,976,723 km (0.041 R)
• M83: 47,126,321 km (0.084 R)
• M84: 47,801,606 km (0.076 R)
• M85: 47,876,704 km (0.115 R)
• M86: 48,706,823 km (0.08 R)
• M87: 50,534,310 km (0.041 R)
• M88: 51,148,410 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.5

Radius: 3.2

Gravity: 60.99 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 13.51 AU - 14.25 AU

Year: 18432 Days

Day: 24.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 69,871,587 km

• M1: 64,477 km (0.099 R)
• M2: 109,655 km (0.103 R)
• M3: 237,262 km (0.05 R)
• M4: 366,964 km (0.103 R)
• M5: 640,877 km (0.086 R)
• M6: 662,419 km (0.081 R)
• M7: 867,817 km (0.094 R)
• M8: 1,066,184 km (0.074 R)
• M9: 1,143,975 km (0.074 R)
• M10: 1,278,015 km (0.084 R)
• M11: 1,502,860 km (0.091 R)
• M12: 2,348,238 km (0.061 R)
• M13: 2,906,387 km (0.088 R)
• M14: 3,855,736 km (0.116 R)
• M15: 4,593,103 km (0.092 R)
• M16: 4,805,532 km (0.062 R)
• M17: 5,596,456 km (0.077 R)
• M18: 6,053,029 km (0.036 R)
• M19: 7,792,852 km (0.071 R)
• M20: 8,508,229 km (0.046 R)
• M21: 9,458,475 km (0.045 R)
• M22: 9,728,200 km (0.077 R)
• M23: 10,832,831 km (0.094 R)
• M24: 10,945,478 km (0.105 R)
• M25: 11,686,885 km (0.084 R)
• M26: 11,976,357 km (0.114 R)
• M27: 12,444,448 km (0.058 R)
• M28: 13,579,896 km (0.104 R)
• M29: 15,123,447 km (0.078 R)
• M30: 15,820,124 km (0.101 R)
• M31: 16,786,676 km (0.031 R)
• M32: 17,375,793 km (0.073 R)
• M33: 17,507,588 km (0.095 R)
• M34: 18,171,803 km (0.106 R)
• M35: 18,574,221 km (0.052 R)
• M36: 19,047,399 km (0.117 R)
• M37: 20,629,846 km (0.091 R)
• M38: 21,401,621 km (0.056 R)
• M39: 22,325,537 km (0.092 R)
• M40: 22,900,741 km (0.114 R)
• M41: 23,117,658 km (0.085 R)
• M42: 24,507,123 km (0.061 R)
• M43: 25,773,170 km (0.08 R)
• M44: 26,831,724 km (0.109 R)
• M45: 28,058,726 km (0.091 R)
• M46: 28,523,527 km (0.114 R)
• M47: 28,679,109 km (0.101 R)
• M48: 28,834,840 km (0.097 R)
• M49: 29,147,200 km (0.109 R)
• M50: 32,170,723 km (0.046 R)
• M51: 33,145,951 km (0.045 R)
• M52: 33,473,122 km (0.087 R)
• M53: 34,048,475 km (0.096 R)
• M54: 34,958,928 km (0.088 R)
• M55: 36,213,456 km (0.117 R)
• M56: 36,297,679 km (0.098 R)
• M57: 37,312,551 km (0.068 R)
• M58: 38,336,848 km (0.098 R)
• M59: 38,508,437 km (0.065 R)
• M60: 39,283,802 km (0.109 R)
• M61: 39,630,122 km (0.088 R)
• M62: 40,064,404 km (0.106 R)
• M63: 40,238,536 km (0.045 R)
• M64: 40,675,063 km (0.097 R)
• M65: 40,937,607 km (0.101 R)
• M66: 41,025,271 km (0.095 R)
• M67: 42,170,742 km (0.119 R)
• M68: 43,594,764 km (0.05 R)
• M69: 43,773,833 km (0.114 R)
• M70: 44,222,776 km (0.109 R)
• M71: 44,673,066 km (0.107 R)
• M72: 45,760,193 km (0.062 R)
• M73: 46,764,294 km (0.104 R)
• M74: 46,855,998 km (0.053 R)
• M75: 47,499,269 km (0.106 R)
• M76: 49,446,285 km (0.108 R)
• M77: 50,101,075 km (0.119 R)
• M78: 50,758,707 km (0.076 R)
• M79: 52,177,643 km (0.109 R)
• M80: 52,272,638 km (0.105 R)
• M81: 53,035,138 km (0.103 R)
• M82: 53,609,444 km (0.089 R)
• M83: 54,185,845 km (0.072 R)
• M84: 54,571,209 km (0.095 R)
• M85: 56,121,791 km (0.083 R)
• M86: 56,707,018 km (0.041 R)
• M87: 57,490,462 km (0.118 R)
• M88: 59,762,554 km (0.044 R)
• M89: 62,164,647 km (0.096 R)
• M90: 62,467,134 km (0.1 R)
• M91: 63,682,018 km (0.072 R)
• M92: 63,783,595 km (0.095 R)
• M93: 63,986,899 km (0.074 R)
• M94: 66,649,741 km (0.075 R)

Kuiper Belt

Range: 30.8 - 46.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 11,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit