🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.84 AU - 0.84 AU

Year: 284 Days

Day: 36.3 Hours

Environment

Temp: 86 °C

Axial Tilt: 34.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.25 AU - 2.55 AU

Year: 1372 Days

Day: 12.2 Hours

Environment

Temp: -94 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,223,861 km

• M1: 1,277,865 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.6

Radius: 14.3

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.6 AU - 5.62 AU

Year: 4262 Days

Day: 13.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 76,223,861 km

• M1: 232,924 km (0.084 R)
• M2: 363,822 km (0.114 R)
• M3: 491,429 km (0.08 R)
• M4: 639,381 km (0.107 R)
• M5: 1,295,368 km (0.088 R)
• M6: 2,002,517 km (0.117 R)
• M7: 2,256,983 km (0.099 R)
• M8: 2,486,167 km (0.094 R)
• M9: 2,667,928 km (0.049 R)
• M10: 2,948,873 km (0.116 R)
• M11: 3,279,335 km (0.067 R)
• M12: 3,398,864 km (0.088 R)
• M13: 3,580,924 km (0.083 R)
• M14: 4,320,087 km (0.048 R)
• M15: 4,876,891 km (0.083 R)
• M16: 5,292,025 km (0.076 R)
• M17: 5,766,848 km (0.103 R)
• M18: 5,984,962 km (0.109 R)
• M19: 6,255,435 km (0.091 R)
• M20: 7,325,060 km (0.106 R)
• M21: 7,667,639 km (0.119 R)
• M22: 7,961,748 km (0.056 R)
• M23: 8,205,144 km (0.117 R)
• M24: 8,423,557 km (0.102 R)
• M25: 9,034,215 km (0.07 R)
• M26: 9,316,507 km (0.096 R)
• M27: 9,487,347 km (0.114 R)
• M28: 9,659,235 km (0.09 R)
• M29: 9,861,043 km (0.117 R)
• M30: 10,682,335 km (0.113 R)
• M31: 10,801,565 km (0.081 R)
• M32: 10,891,174 km (0.101 R)
• M33: 11,221,935 km (0.086 R)
• M34: 11,434,364 km (0.077 R)
• M35: 11,955,413 km (0.076 R)
• M36: 12,172,330 km (0.116 R)
• M37: 12,735,865 km (0.083 R)
• M38: 13,468,595 km (0.049 R)
• M39: 13,694,339 km (0.049 R)
• M40: 14,247,701 km (0.116 R)
• M41: 14,941,536 km (0.04 R)
• M42: 15,951,771 km (0.072 R)
• M43: 16,361,968 km (0.102 R)
• M44: 16,879,876 km (0.11 R)
• M45: 17,053,559 km (0.109 R)
• M46: 17,227,990 km (0.073 R)
• M47: 17,473,181 km (0.064 R)
• M48: 17,613,803 km (0.115 R)
• M49: 18,215,635 km (0.111 R)
• M50: 18,358,202 km (0.103 R)
• M51: 18,752,243 km (0.117 R)
• M52: 20,061,374 km (0.089 R)
• M53: 20,356,231 km (0.091 R)
• M54: 20,504,333 km (0.109 R)
• M55: 20,838,684 km (0.109 R)
• M56: 21,062,483 km (0.065 R)
• M57: 21,287,179 km (0.056 R)
• M58: 21,399,826 km (0.118 R)
• M59: 21,550,321 km (0.066 R)
• M60: 21,966,054 km (0.04 R)
• M61: 22,384,479 km (0.073 R)
• M62: 22,690,407 km (0.087 R)
• M63: 23,074,873 km (0.08 R)
• M64: 23,306,451 km (0.108 R)
• M65: 23,577,821 km (0.07 R)
• M66: 23,967,075 km (0.089 R)
• M67: 24,319,378 km (0.062 R)
• M68: 24,594,488 km (0.059 R)
• M69: 24,870,646 km (0.116 R)
• M70: 25,386,310 km (0.118 R)
• M71: 26,186,658 km (0.117 R)
• M72: 26,347,626 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.7

Radius: 11.2

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.49 AU - 6.85 AU

Year: 5655 Days

Day: 9.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 76,223,861 km

• M1: 202,107 km (0.064 R)
• M2: 316,699 km (0.101 R)
• M3: 487,390 km (0.037 R)
• M4: 731,683 km (0.088 R)
• M5: 926,759 km (0.07 R)
• M6: 1,046,138 km (0.081 R)
• M7: 1,284,896 km (0.105 R)
• M8: 1,721,871 km (0.074 R)
• M9: 2,044,704 km (0.114 R)
• M10: 2,243,818 km (0.088 R)
• M11: 2,449,366 km (0.064 R)
• M12: 2,554,533 km (0.041 R)
• M13: 2,769,505 km (0.051 R)
• M14: 2,968,171 km (0.073 R)
• M15: 3,125,848 km (0.061 R)
• M16: 3,473,363 km (0.062 R)
• M17: 3,615,930 km (0.09 R)
• M18: 3,711,972 km (0.096 R)
• M19: 3,833,445 km (0.077 R)
• M20: 4,205,495 km (0.096 R)
• M21: 4,511,722 km (0.088 R)
• M22: 4,825,279 km (0.085 R)
• M23: 5,227,099 km (0.113 R)
• M24: 5,977,781 km (0.027 R)
• M25: 6,063,202 km (0.116 R)
• M26: 6,293,283 km (0.044 R)
• M27: 6,497,036 km (0.032 R)
• M28: 6,643,791 km (0.084 R)
• M29: 6,851,283 km (0.108 R)
• M30: 7,060,870 km (0.101 R)
• M31: 7,333,437 km (0.079 R)
• M32: 7,671,379 km (0.079 R)
• M33: 8,077,238 km (0.043 R)
• M34: 8,490,278 km (0.09 R)
• M35: 8,845,124 km (0.078 R)
• M36: 9,204,907 km (0.102 R)
• M37: 9,703,217 km (0.102 R)
• M38: 9,938,834 km (0.096 R)
• M39: 10,074,369 km (0.113 R)
• M40: 10,176,395 km (0.05 R)
• M41: 10,278,720 km (0.107 R)
• M42: 10,415,752 km (0.064 R)
• M43: 11,039,874 km (0.119 R)
• M44: 12,179,211 km (0.09 R)
• M45: 13,095,349 km (0.089 R)
• M46: 13,957,631 km (0.11 R)
• M47: 14,109,473 km (0.093 R)
• M48: 14,491,396 km (0.117 R)
• M49: 14,683,779 km (0.109 R)
• M50: 15,148,729 km (0.063 R)
• M51: 15,265,715 km (0.11 R)
• M52: 16,053,497 km (0.12 R)
• M53: 17,341,236 km (0.095 R)
• M54: 18,121,538 km (0.109 R)
• M55: 18,871,323 km (0.099 R)
• M56: 19,165,731 km (0.101 R)
• M57: 20,660,064 km (0.093 R)
• M58: 22,725,113 km (0.112 R)
• M59: 23,127,980 km (0.082 R)
• M60: 23,398,005 km (0.101 R)
• M61: 24,168,434 km (0.083 R)
• M62: 24,488,124 km (0.1 R)
• M63: 24,579,678 km (0.04 R)
• M64: 24,901,164 km (0.052 R)
• M65: 25,409,198 km (0.07 R)
• M66: 25,780,799 km (0.106 R)
• M67: 26,435,440 km (0.057 R)
• M68: 27,332,728 km (0.11 R)
• M69: 27,761,176 km (0.095 R)
• M70: 28,239,889 km (0.116 R)
• M71: 28,432,123 km (0.117 R)
• M72: 28,528,464 km (0.098 R)
• M73: 29,108,454 km (0.108 R)
• M74: 30,034,765 km (0.09 R)
• M75: 31,766,360 km (0.047 R)
• M76: 32,669,482 km (0.063 R)
• M77: 32,871,290 km (0.117 R)
• M78: 33,886,760 km (0.107 R)
• M79: 34,091,111 km (0.11 R)
• M80: 34,244,598 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.8

Radius: 14.2

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 9.45 AU - 11.19 AU

Year: 12232 Days

Day: 12.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 76,223,861 km

• M1: 677,978 km (0.033 R)
• M2: 1,325,288 km (0.117 R)
• M3: 1,855,163 km (0.043 R)
• M4: 3,033,546 km (0.115 R)
• M5: 3,392,431 km (0.072 R)
• M6: 3,662,156 km (0.099 R)
• M7: 4,115,737 km (0.102 R)
• M8: 4,587,419 km (0.097 R)
• M9: 5,038,307 km (0.083 R)
• M10: 5,464,212 km (0.03 R)
• M11: 5,622,038 km (0.106 R)
• M12: 6,517,381 km (0.099 R)
• M13: 6,769,304 km (0.081 R)
• M14: 7,588,352 km (0.109 R)
• M15: 7,942,600 km (0.027 R)
• M16: 8,667,551 km (0.095 R)
• M17: 9,178,278 km (0.089 R)
• M18: 10,670,068 km (0.12 R)
• M19: 10,818,469 km (0.056 R)
• M20: 10,967,618 km (0.107 R)
• M21: 11,067,400 km (0.116 R)
• M22: 11,267,712 km (0.118 R)
• M23: 11,520,083 km (0.107 R)
• M24: 11,774,250 km (0.077 R)
• M25: 12,081,674 km (0.065 R)
• M26: 13,497,767 km (0.085 R)
• M27: 14,252,788 km (0.08 R)
• M28: 14,361,695 km (0.06 R)
• M29: 15,973,013 km (0.057 R)
• M30: 16,427,492 km (0.07 R)
• M31: 16,656,377 km (0.036 R)
• M32: 17,816,658 km (0.082 R)
• M33: 18,883,290 km (0.112 R)
• M34: 19,002,969 km (0.077 R)
• M35: 19,909,532 km (0.088 R)
• M36: 20,092,490 km (0.071 R)
• M37: 20,460,202 km (0.113 R)
• M38: 20,830,008 km (0.034 R)
• M39: 22,521,959 km (0.116 R)
• M40: 22,648,968 km (0.081 R)
• M41: 22,776,276 km (0.112 R)
• M42: 23,868,191 km (0.114 R)
• M43: 26,236,325 km (0.111 R)
• M44: 27,856,320 km (0.104 R)
• M45: 28,747,325 km (0.05 R)
• M46: 29,578,192 km (0.113 R)
• M47: 30,909,613 km (0.109 R)
• M48: 31,689,467 km (0.115 R)
• M49: 34,359,789 km (0.086 R)
• M50: 34,506,245 km (0.108 R)
• M51: 35,684,926 km (0.105 R)
• M52: 35,981,579 km (0.036 R)
• M53: 36,652,226 km (0.084 R)
• M54: 37,552,805 km (0.114 R)
• M55: 37,779,147 km (0.117 R)
• M56: 38,536,711 km (0.11 R)
• M57: 39,913,011 km (0.043 R)
• M58: 41,227,677 km (0.119 R)
• M59: 42,085,771 km (0.118 R)
• M60: 42,634,944 km (0.089 R)
• M61: 42,871,159 km (0.037 R)
• M62: 43,186,512 km (0.093 R)
• M63: 43,423,624 km (0.078 R)
• M64: 43,899,196 km (0.102 R)
• M65: 46,545,433 km (0.11 R)
• M66: 46,869,611 km (0.07 R)
• M67: 47,683,573 km (0.114 R)
• M68: 48,010,445 km (0.081 R)
• M69: 48,174,254 km (0.032 R)
• M70: 48,913,268 km (0.071 R)
• M71: 49,242,982 km (0.12 R)
• M72: 49,490,716 km (0.069 R)
• M73: 51,319,998 km (0.12 R)
• M74: 51,822,797 km (0.041 R)
• M75: 52,074,869 km (0.119 R)
• M76: 52,495,688 km (0.043 R)
• M77: 54,361,173 km (0.086 R)
• M78: 54,531,865 km (0.094 R)
• M79: 54,788,126 km (0.077 R)
• M80: 55,473,583 km (0.059 R)
• M81: 56,853,175 km (0.094 R)
• M82: 57,634,076 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 534.5

Radius: 3.1

Gravity: 55.62 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 12.43 AU - 12.75 AU

Year: 16482 Days

Day: 15.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 76,223,861 km

• M1: 48,619 km (0.05 R)
• M2: 91,105 km (0.108 R)
• M3: 163,062 km (0.039 R)
• M4: 187,147 km (0.088 R)
• M5: 441,463 km (0.08 R)
• M6: 645,664 km (0.052 R)
• M7: 789,428 km (0.087 R)
• M8: 854,054 km (0.088 R)
• M9: 1,277,267 km (0.119 R)
• M10: 1,536,669 km (0.045 R)
• M11: 2,469,711 km (0.114 R)
• M12: 2,532,842 km (0.07 R)
• M13: 2,856,571 km (0.108 R)
• M14: 3,057,032 km (0.098 R)
• M15: 3,976,760 km (0.049 R)
• M16: 4,582,033 km (0.047 R)
• M17: 4,620,929 km (0.058 R)
• M18: 4,935,084 km (0.098 R)
• M19: 5,094,705 km (0.111 R)
• M20: 5,215,580 km (0.077 R)
• M21: 5,255,972 km (0.111 R)
• M22: 5,378,193 km (0.043 R)
• M23: 6,002,764 km (0.11 R)
• M24: 7,048,752 km (0.096 R)
• M25: 7,093,482 km (0.111 R)
• M26: 7,409,732 km (0.11 R)
• M27: 7,500,837 km (0.051 R)
• M28: 7,684,394 km (0.107 R)
• M29: 9,898,143 km (0.119 R)
• M30: 10,505,810 km (0.057 R)
• M31: 10,865,892 km (0.092 R)
• M32: 11,387,091 km (0.057 R)
• M33: 11,650,832 km (0.081 R)
• M34: 12,508,177 km (0.075 R)
• M35: 13,608,021 km (0.03 R)
• M36: 13,663,821 km (0.078 R)
• M37: 15,314,932 km (0.098 R)
• M38: 16,311,703 km (0.08 R)
• M39: 16,728,183 km (0.102 R)
• M40: 16,787,873 km (0.064 R)
• M41: 17,027,828 km (0.077 R)
• M42: 18,059,754 km (0.073 R)
• M43: 18,182,424 km (0.082 R)
• M44: 18,552,230 km (0.081 R)
• M45: 20,247,025 km (0.079 R)
• M46: 20,887,304 km (0.039 R)
• M47: 21,080,584 km (0.092 R)
• M48: 21,145,210 km (0.09 R)
• M49: 21,599,090 km (0.115 R)
• M50: 22,252,982 km (0.111 R)
• M51: 23,179,442 km (0.061 R)
• M52: 24,050,999 km (0.092 R)
• M53: 24,253,555 km (0.037 R)
• M54: 25,001,395 km (0.098 R)
• M55: 25,894,943 km (0.105 R)
• M56: 26,519,663 km (0.062 R)
• M57: 26,868,825 km (0.11 R)
• M58: 27,501,325 km (0.115 R)
• M59: 28,709,178 km (0.088 R)
• M60: 28,852,343 km (0.09 R)
• M61: 30,224,903 km (0.1 R)
• M62: 31,470,754 km (0.119 R)
• M63: 31,692,459 km (0.096 R)
• M64: 31,988,662 km (0.081 R)
• M65: 32,434,913 km (0.047 R)
• M66: 33,183,052 km (0.118 R)
• M67: 34,696,384 km (0.046 R)
• M68: 35,461,427 km (0.102 R)
• M69: 37,320,031 km (0.085 R)
• M70: 37,398,271 km (0.098 R)
• M71: 38,497,815 km (0.117 R)
• M72: 39,687,567 km (0.064 R)
• M73: 41,697,265 km (0.104 R)
• M74: 41,859,429 km (0.11 R)
• M75: 44,897,762 km (0.053 R)
• M76: 45,230,467 km (0.109 R)
• M77: 45,814,647 km (0.036 R)
• M78: 47,666,968 km (0.061 R)
• M79: 48,176,349 km (0.118 R)
• M80: 48,346,441 km (0.104 R)
• M81: 51,444,015 km (0.082 R)
• M82: 55,049,174 km (0.097 R)
• M83: 55,940,777 km (0.086 R)
• M84: 56,030,087 km (0.12 R)
• M85: 56,119,547 km (0.09 R)
• M86: 56,209,156 km (0.053 R)
• M87: 57,196,951 km (0.111 R)
• M88: 57,557,482 km (0.115 R)
• M89: 57,828,553 km (0.103 R)
• M90: 58,009,417 km (0.065 R)
• M91: 58,553,205 km (0.03 R)
• M92: 58,916,578 km (0.078 R)
• M93: 59,737,123 km (0.043 R)
• M94: 60,102,889 km (0.032 R)
• M95: 60,286,147 km (0.097 R)
• M96: 61,389,281 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 829.8

Radius: 6.4

Gravity: 20.26 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 12.02 AU - 14.9 AU

Year: 18220 Days

Day: 15 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 76,223,861 km

• M1: 205,697 km (0.102 R)
• M2: 279,000 km (0.03 R)
• M3: 398,828 km (0.085 R)
• M4: 495,169 km (0.11 R)
• M5: 688,749 km (0.117 R)
• M6: 830,867 km (0.084 R)
• M7: 880,383 km (0.102 R)
• M8: 1,035,068 km (0.032 R)
• M9: 1,581,399 km (0.116 R)
• M10: 1,770,341 km (0.053 R)
• M11: 1,966,614 km (0.094 R)
• M12: 2,707,422 km (0.086 R)
• M13: 2,971,911 km (0.05 R)
• M14: 3,244,778 km (0.114 R)
• M15: 3,983,043 km (0.087 R)
• M16: 4,371,100 km (0.063 R)
• M17: 4,636,487 km (0.053 R)
• M18: 6,992,504 km (0.1 R)
• M19: 7,564,865 km (0.091 R)
• M20: 9,942,274 km (0.073 R)
• M21: 10,058,063 km (0.102 R)
• M22: 10,525,856 km (0.086 R)
• M23: 10,702,980 km (0.081 R)
• M24: 11,543,121 km (0.107 R)
• M25: 12,156,024 km (0.08 R)
• M26: 12,279,891 km (0.109 R)
• M27: 12,404,207 km (0.058 R)
• M28: 12,466,439 km (0.115 R)
• M29: 13,095,199 km (0.076 R)
• M30: 14,777,577 km (0.045 R)
• M31: 16,389,943 km (0.089 R)
• M32: 17,775,518 km (0.054 R)
• M33: 18,696,293 km (0.118 R)
• M34: 18,839,309 km (0.03 R)
• M35: 19,487,367 km (0.087 R)
• M36: 19,996,448 km (0.077 R)
• M37: 21,325,625 km (0.084 R)
• M38: 21,699,919 km (0.075 R)
• M39: 23,295,380 km (0.102 R)
• M40: 23,603,552 km (0.094 R)
• M41: 24,223,934 km (0.045 R)
• M42: 25,164,606 km (0.084 R)
• M43: 25,957,624 km (0.088 R)
• M44: 26,037,360 km (0.094 R)
• M45: 27,975,550 km (0.116 R)
• M46: 28,714,414 km (0.103 R)
• M47: 28,879,420 km (0.12 R)
• M48: 28,961,998 km (0.117 R)
• M49: 29,127,603 km (0.117 R)
• M50: 29,876,340 km (0.078 R)
• M51: 30,884,331 km (0.116 R)
• M52: 31,647,729 km (0.091 R)
• M53: 33,020,140 km (0.057 R)
• M54: 35,291,484 km (0.086 R)
• M55: 35,822,706 km (0.112 R)
• M56: 37,072,596 km (0.111 R)
• M57: 39,890,721 km (0.044 R)
• M58: 41,278,840 km (0.119 R)
• M59: 41,371,890 km (0.063 R)
• M60: 42,025,632 km (0.106 R)
• M61: 42,119,280 km (0.057 R)
• M62: 44,483,376 km (0.111 R)
• M63: 44,865,598 km (0.119 R)
• M64: 46,696,078 km (0.103 R)
• M65: 47,084,583 km (0.046 R)
• M66: 47,962,573 km (0.118 R)
• M67: 49,141,554 km (0.102 R)
• M68: 51,528,089 km (0.09 R)
• M69: 53,444,139 km (0.067 R)
• M70: 54,870,704 km (0.108 R)
• M71: 55,588,774 km (0.071 R)
• M72: 57,553,293 km (0.118 R)
• M73: 57,865,504 km (0.04 R)
• M74: 58,596,289 km (0.068 R)
• M75: 60,489,600 km (0.117 R)
• M76: 60,912,962 km (0.037 R)
• M77: 61,549,950 km (0.112 R)
• M78: 63,259,404 km (0.087 R)
• M79: 63,366,816 km (0.082 R)
• M80: 64,335,761 km (0.098 R)
• M81: 64,443,621 km (0.112 R)
• M82: 65,743,926 km (0.037 R)
• M83: 66,397,369 km (0.096 R)
• M84: 69,364,045 km (0.096 R)
• M85: 70,029,157 km (0.094 R)
• M86: 70,251,310 km (0.117 R)
• M87: 71,701,212 km (0.113 R)
• M88: 72,373,655 km (0.053 R)
• M89: 72,710,699 km (0.053 R)
• M90: 72,823,196 km (0.085 R)
• M91: 73,048,341 km (0.114 R)
• M92: 74,857,428 km (0.085 R)
• M93: 76,223,855 km (0.12 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: 282 - 16,984 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit