🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.11 AU - 1.43 AU

Year: 503 Days

Day: 13.1 Hours

Environment

Temp: 15 °C

Axial Tilt: 34.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 95,349,738 km

• M1: 37,399 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.27 AU - 1.81 AU

Year: 672 Days

Day: 43.4 Hours

Environment

Temp: -1 °C

Axial Tilt: 47.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.97 AU - 2.57 AU

Year: 1202 Days

Day: 38.6 Hours

Environment

Temp: -71 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.48 AU - 3.02 AU

Year: 1603 Days

Day: 27.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.26 AU - 4.06 AU

Year: 2461 Days

Day: 33.8 Hours

Environment

Temp: -99 °C

Axial Tilt: 5.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,349,738 km

• M1: 920,177 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.8

Radius: 10

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.94 AU - 9.32 AU

Year: 7407 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 95,349,738 km

• M1: 130,300 km (0.106 R)
• M2: 223,798 km (0.111 R)
• M3: 358,436 km (0.073 R)
• M4: 535,860 km (0.099 R)
• M5: 1,013,675 km (0.059 R)
• M6: 2,622,899 km (0.082 R)
• M7: 2,690,368 km (0.107 R)
• M8: 2,827,250 km (0.062 R)
• M9: 2,948,873 km (0.089 R)
• M10: 3,696,264 km (0.083 R)
• M11: 3,791,408 km (0.109 R)
• M12: 4,869,710 km (0.064 R)
• M13: 6,014,433 km (0.109 R)
• M14: 7,478,398 km (0.085 R)
• M15: 7,647,593 km (0.111 R)
• M16: 8,689,692 km (0.067 R)
• M17: 8,969,888 km (0.082 R)
• M18: 9,775,622 km (0.09 R)
• M19: 10,200,630 km (0.089 R)
• M20: 11,123,798 km (0.055 R)
• M21: 11,483,731 km (0.071 R)
• M22: 11,567,356 km (0.116 R)
• M23: 12,329,109 km (0.117 R)
• M24: 12,903,864 km (0.113 R)
• M25: 13,165,361 km (0.083 R)
• M26: 14,318,760 km (0.097 R)
• M27: 14,589,532 km (0.099 R)
• M28: 14,740,626 km (0.094 R)
• M29: 14,983,573 km (0.055 R)
• M30: 15,227,866 km (0.103 R)
• M31: 15,504,174 km (0.081 R)
• M32: 16,815,848 km (0.085 R)
• M33: 16,879,128 km (0.091 R)
• M34: 17,197,023 km (0.091 R)
• M35: 18,065,289 km (0.065 R)
• M36: 18,881,944 km (0.094 R)
• M37: 19,311,440 km (0.048 R)
• M38: 20,382,111 km (0.069 R)
• M39: 22,128,218 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.7

Radius: 10.3

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.32 AU - 8.7 AU

Year: 7968 Days

Day: 6.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 95,349,738 km

• M1: 537,954 km (0.098 R)
• M2: 639,531 km (0.117 R)
• M3: 847,173 km (0.108 R)
• M4: 950,545 km (0.092 R)
• M5: 1,095,505 km (0.045 R)
• M6: 2,380,102 km (0.072 R)
• M7: 2,734,051 km (0.114 R)
• M8: 2,838,171 km (0.1 R)
• M9: 2,997,044 km (0.077 R)
• M10: 3,131,831 km (0.064 R)
• M11: 3,435,216 km (0.063 R)
• M12: 3,893,584 km (0.119 R)
• M13: 5,058,802 km (0.119 R)
• M14: 5,187,456 km (0.114 R)
• M15: 5,880,543 km (0.085 R)
• M16: 5,948,161 km (0.072 R)
• M17: 6,186,620 km (0.037 R)
• M18: 6,567,646 km (0.074 R)
• M19: 6,778,728 km (0.097 R)
• M20: 7,063,862 km (0.032 R)
• M21: 8,318,539 km (0.117 R)
• M22: 9,323,986 km (0.106 R)
• M23: 9,482,111 km (0.081 R)
• M24: 9,961,722 km (0.118 R)
• M25: 10,204,520 km (0.091 R)
• M26: 10,326,741 km (0.036 R)
• M27: 10,572,381 km (0.061 R)
• M28: 11,028,056 km (0.034 R)
• M29: 11,363,305 km (0.07 R)
• M30: 11,872,685 km (0.106 R)
• M31: 12,476,462 km (0.05 R)
• M32: 12,563,528 km (0.085 R)
• M33: 12,913,737 km (0.101 R)
• M34: 14,346,885 km (0.112 R)
• M35: 14,667,024 km (0.079 R)
• M36: 15,035,932 km (0.106 R)
• M37: 15,924,095 km (0.109 R)
• M38: 16,685,249 km (0.091 R)
• M39: 17,555,759 km (0.093 R)
• M40: 17,751,283 km (0.057 R)
• M41: 18,739,377 km (0.095 R)
• M42: 18,839,159 km (0.108 R)
• M43: 19,189,816 km (0.091 R)
• M44: 19,290,346 km (0.086 R)
• M45: 19,542,568 km (0.084 R)
• M46: 19,795,987 km (0.079 R)
• M47: 20,923,506 km (0.114 R)
• M48: 21,234,670 km (0.103 R)
• M49: 21,861,634 km (0.113 R)
• M50: 22,071,969 km (0.053 R)
• M51: 22,177,436 km (0.107 R)
• M52: 22,600,648 km (0.074 R)
• M53: 22,973,296 km (0.042 R)
• M54: 23,724,726 km (0.039 R)
• M55: 24,593,142 km (0.089 R)
• M56: 25,416,828 km (0.04 R)
• M57: 25,804,436 km (0.116 R)
• M58: 26,417,189 km (0.113 R)
• M59: 28,113,030 km (0.112 R)
• M60: 28,341,765 km (0.076 R)
• M61: 28,916,371 km (0.086 R)
• M62: 29,494,866 km (0.056 R)
• M63: 30,194,086 km (0.099 R)
• M64: 30,311,072 km (0.12 R)
• M65: 31,016,575 km (0.117 R)
• M66: 31,134,758 km (0.1 R)
• M67: 31,906,234 km (0.103 R)
• M68: 33,407,448 km (0.036 R)
• M69: 34,808,732 km (0.096 R)
• M70: 34,992,887 km (0.079 R)
• M71: 35,115,856 km (0.097 R)
• M72: 37,416,821 km (0.075 R)
• M73: 38,047,077 km (0.069 R)
• M74: 39,254,182 km (0.107 R)
• M75: 39,766,106 km (0.096 R)
• M76: 40,796,835 km (0.083 R)
• M77: 40,926,237 km (0.083 R)
• M78: 41,120,715 km (0.107 R)
• M79: 41,640,717 km (0.108 R)
• M80: 42,621,481 km (0.105 R)
• M81: 43,279,711 km (0.036 R)
• M82: 43,742,417 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.3

Radius: 14.8

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 11.63 AU - 13.71 AU

Year: 15851 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 95,349,738 km

• M1: 204,650 km (0.116 R)
• M2: 533,316 km (0.101 R)
• M3: 685,607 km (0.114 R)
• M4: 777,759 km (0.063 R)
• M5: 1,105,379 km (0.064 R)
• M6: 1,836,463 km (0.054 R)
• M7: 2,110,078 km (0.118 R)
• M8: 2,697,399 km (0.062 R)
• M9: 2,820,967 km (0.103 R)
• M10: 3,170,876 km (0.104 R)
• M11: 3,636,724 km (0.038 R)
• M12: 3,912,882 km (0.079 R)
• M13: 4,160,317 km (0.118 R)
• M14: 5,201,069 km (0.087 R)
• M15: 5,512,981 km (0.09 R)
• M16: 5,871,268 km (0.113 R)
• M17: 6,736,841 km (0.075 R)
• M18: 7,292,896 km (0.075 R)
• M19: 7,466,879 km (0.088 R)
• M20: 7,730,620 km (0.108 R)
• M21: 8,177,169 km (0.051 R)
• M22: 9,614,356 km (0.06 R)
• M23: 9,805,542 km (0.077 R)
• M24: 10,289,042 km (0.068 R)
• M25: 10,484,567 km (0.104 R)
• M26: 10,929,172 km (0.11 R)
• M27: 12,768,926 km (0.086 R)
• M28: 13,510,034 km (0.087 R)
• M29: 13,885,974 km (0.111 R)
• M30: 14,923,584 km (0.058 R)
• M31: 15,479,789 km (0.066 R)
• M32: 16,497,952 km (0.107 R)
• M33: 17,130,901 km (0.103 R)
• M34: 17,363,077 km (0.081 R)
• M35: 17,537,807 km (0.071 R)
• M36: 17,713,285 km (0.053 R)
• M37: 18,598,905 km (0.118 R)
• M38: 19,741,533 km (0.088 R)
• M39: 20,413,527 km (0.102 R)
• M40: 21,217,167 km (0.032 R)
• M41: 22,347,229 km (0.117 R)
• M42: 22,600,947 km (0.118 R)
• M43: 24,013,899 km (0.098 R)
• M44: 24,404,050 km (0.117 R)
• M45: 24,600,023 km (0.044 R)
• M46: 24,862,119 km (0.111 R)
• M47: 25,323,030 km (0.116 R)
• M48: 26,857,007 km (0.095 R)
• M49: 27,194,499 km (0.086 R)
• M50: 28,010,257 km (0.036 R)
• M51: 28,421,202 km (0.066 R)
• M52: 28,558,533 km (0.098 R)
• M53: 29,874,994 km (0.098 R)
• M54: 30,928,163 km (0.105 R)
• M55: 31,281,962 km (0.114 R)
• M56: 31,850,883 km (0.118 R)
• M57: 34,014,367 km (0.098 R)
• M58: 38,330,116 km (0.069 R)
• M59: 39,474,091 km (0.108 R)
• M60: 40,551,794 km (0.093 R)
• M61: 43,684,373 km (0.109 R)
• M62: 43,843,097 km (0.075 R)
• M63: 44,639,257 km (0.087 R)
• M64: 45,199,351 km (0.052 R)
• M65: 45,520,538 km (0.043 R)
• M66: 46,084,372 km (0.105 R)
• M67: 47,300,453 km (0.079 R)
• M68: 47,789,788 km (0.101 R)
• M69: 48,035,128 km (0.066 R)
• M70: 48,691,414 km (0.106 R)
• M71: 49,020,679 km (0.076 R)
• M72: 49,350,542 km (0.103 R)
• M73: 53,198,050 km (0.077 R)
• M74: 53,877,075 km (0.04 R)
• M75: 55,157,782 km (0.066 R)
• M76: 56,707,915 km (0.099 R)
• M77: 56,881,000 km (0.066 R)
• M78: 57,314,535 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.8

Radius: 5.1

Gravity: 16.18 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 13.6 AU - 21.58 AU

Year: 25928 Days

Day: 20.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 95,349,738 km

• M1: 82,877 km (0.069 R)
• M2: 152,141 km (0.112 R)
• M3: 724,802 km (0.042 R)
• M4: 1,802,056 km (0.103 R)
• M5: 2,242,771 km (0.08 R)
• M6: 2,493,348 km (0.11 R)
• M7: 2,715,201 km (0.109 R)
• M8: 2,866,744 km (0.038 R)
• M9: 2,982,234 km (0.095 R)
• M10: 3,257,643 km (0.04 R)
• M11: 3,623,560 km (0.082 R)
• M12: 3,748,474 km (0.1 R)
• M13: 3,959,856 km (0.11 R)
• M14: 4,527,430 km (0.096 R)
• M15: 4,707,247 km (0.119 R)
• M16: 4,889,307 km (0.049 R)
• M17: 5,449,402 km (0.117 R)
• M18: 5,931,556 km (0.1 R)
• M19: 7,091,388 km (0.094 R)
• M20: 7,143,448 km (0.09 R)
• M21: 7,405,244 km (0.118 R)
• M22: 9,267,887 km (0.119 R)
• M23: 10,309,238 km (0.096 R)
• M24: 10,843,751 km (0.079 R)
• M25: 10,903,740 km (0.071 R)
• M26: 11,448,276 km (0.111 R)
• M27: 11,631,683 km (0.077 R)
• M28: 12,125,655 km (0.105 R)
• M29: 12,375,185 km (0.054 R)
• M30: 12,437,866 km (0.101 R)
• M31: 13,134,095 km (0.081 R)
• M32: 13,519,010 km (0.096 R)
• M33: 15,095,921 km (0.099 R)
• M34: 15,499,237 km (0.049 R)
• M35: 15,837,927 km (0.109 R)
• M36: 16,660,864 km (0.107 R)
• M37: 16,730,128 km (0.077 R)
• M38: 19,066,847 km (0.111 R)
• M39: 20,015,148 km (0.069 R)
• M40: 20,088,750 km (0.055 R)
• M41: 20,236,104 km (0.109 R)
• M42: 20,829,409 km (0.107 R)
• M43: 22,796,771 km (0.063 R)
• M44: 22,950,557 km (0.12 R)
• M45: 24,585,812 km (0.052 R)
• M46: 25,457,369 km (0.077 R)
• M47: 26,743,013 km (0.104 R)
• M48: 28,793,701 km (0.073 R)
• M49: 29,209,882 km (0.039 R)
• M50: 29,628,008 km (0.096 R)
• M51: 30,554,916 km (0.106 R)
• M52: 30,639,738 km (0.081 R)
• M53: 31,662,689 km (0.08 R)
• M54: 32,092,184 km (0.099 R)
• M55: 32,178,352 km (0.054 R)
• M56: 33,392,339 km (0.114 R)
• M57: 33,829,464 km (0.094 R)
• M58: 34,444,760 km (0.038 R)
• M59: 35,241,219 km (0.059 R)
• M60: 37,757,605 km (0.117 R)
• M61: 38,670,302 km (0.043 R)
• M62: 39,405,575 km (0.108 R)
• M63: 39,867,533 km (0.058 R)
• M64: 41,639,221 km (0.095 R)
• M65: 41,921,213 km (0.091 R)
• M66: 42,203,953 km (0.104 R)
• M67: 42,298,349 km (0.102 R)
• M68: 42,676,533 km (0.106 R)
• M69: 44,969,419 km (0.091 R)
• M70: 45,258,741 km (0.086 R)
• M71: 46,910,452 km (0.118 R)
• M72: 47,105,976 km (0.084 R)
• M73: 47,399,936 km (0.042 R)
• M74: 48,088,086 km (0.109 R)
• M75: 48,383,991 km (0.083 R)
• M76: 50,372,445 km (0.099 R)
• M77: 53,506,670 km (0.071 R)
• M78: 53,608,846 km (0.103 R)
• M79: 53,711,021 km (0.104 R)
• M80: 56,807,547 km (0.119 R)
• M81: 57,747,770 km (0.107 R)
• M82: 59,431,943 km (0.059 R)
• M83: 60,067,734 km (0.062 R)
• M84: 62,633,038 km (0.107 R)
• M85: 62,956,170 km (0.104 R)
• M86: 65,998,990 km (0.052 R)
• M87: 68,867,081 km (0.095 R)
• M88: 70,428,284 km (0.09 R)
• M89: 70,540,183 km (0.041 R)
• M90: 71,100,876 km (0.053 R)
• M91: 72,339,546 km (0.119 R)
• M92: 72,791,781 km (0.038 R)
• M93: 75,524,635 km (0.108 R)
• M94: 76,673,247 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 693.9

Radius: 7.7

Gravity: 11.7 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 17.67 AU - 19.25 AU

Year: 27876 Days

Day: 22.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 95,349,738 km

• M1: 129,402 km (0.086 R)
• M2: 288,574 km (0.1 R)
• M3: 385,663 km (0.065 R)
• M4: 495,169 km (0.062 R)
• M5: 773,720 km (0.096 R)
• M6: 945,159 km (0.085 R)
• M7: 1,936,096 km (0.106 R)
• M8: 2,052,184 km (0.114 R)
• M9: 2,373,520 km (0.119 R)
• M10: 2,498,135 km (0.062 R)
• M11: 2,797,331 km (0.118 R)
• M12: 4,305,427 km (0.071 R)
• M13: 5,574,316 km (0.108 R)
• M14: 6,249,301 km (0.081 R)
• M15: 7,430,825 km (0.073 R)
• M16: 7,675,268 km (0.1 R)
• M17: 7,736,753 km (0.106 R)
• M18: 8,172,232 km (0.105 R)
• M19: 8,424,604 km (0.093 R)
• M20: 9,131,753 km (0.12 R)
• M21: 9,791,181 km (0.065 R)
• M22: 10,194,197 km (0.047 R)
• M23: 10,947,123 km (0.052 R)
• M24: 11,365,399 km (0.053 R)
• M25: 13,089,963 km (0.071 R)
• M26: 13,682,820 km (0.092 R)
• M27: 14,894,712 km (0.104 R)
• M28: 15,280,375 km (0.113 R)
• M29: 16,298,538 km (0.099 R)
• M30: 17,177,127 km (0.043 R)
• M31: 17,744,252 km (0.079 R)
• M32: 18,153,103 km (0.057 R)
• M33: 19,146,882 km (0.11 R)
• M34: 21,187,098 km (0.084 R)
• M35: 23,295,380 km (0.038 R)
• M36: 24,374,280 km (0.116 R)
• M37: 24,555,742 km (0.077 R)
• M38: 25,377,633 km (0.072 R)
• M39: 25,653,492 km (0.103 R)
• M40: 26,301,400 km (0.093 R)
• M41: 26,673,899 km (0.043 R)
• M42: 27,518,678 km (0.097 R)
• M43: 27,802,166 km (0.114 R)
• M44: 28,467,428 km (0.076 R)
• M45: 31,772,793 km (0.057 R)
• M46: 32,368,641 km (0.093 R)
• M47: 33,672,087 km (0.099 R)
• M48: 34,279,604 km (0.037 R)
• M49: 34,890,562 km (0.084 R)
• M50: 35,095,062 km (0.111 R)
• M51: 37,789,170 km (0.082 R)
• M52: 40,227,466 km (0.113 R)
• M53: 40,871,784 km (0.092 R)
• M54: 41,844,768 km (0.067 R)
• M55: 42,279,649 km (0.064 R)
• M56: 42,497,763 km (0.067 R)
• M57: 42,825,382 km (0.066 R)
• M58: 43,154,049 km (0.12 R)
• M59: 43,813,626 km (0.069 R)
• M60: 45,700,504 km (0.104 R)
• M61: 47,387,370 km (0.095 R)
• M62: 49,094,580 km (0.12 R)
• M63: 53,862,564 km (0.068 R)
• M64: 54,691,186 km (0.116 R)
• M65: 55,524,147 km (0.073 R)
• M66: 59,751,185 km (0.056 R)
• M67: 61,841,366 km (0.07 R)
• M68: 62,833,200 km (0.093 R)
• M69: 66,092,938 km (0.058 R)
• M70: 67,107,062 km (0.12 R)
• M71: 68,381,785 km (0.077 R)
• M72: 68,894,008 km (0.07 R)
• M73: 69,022,214 km (0.06 R)
• M74: 69,407,428 km (0.069 R)
• M75: 70,308,905 km (0.107 R)
• M76: 71,214,271 km (0.116 R)
• M77: 72,644,876 km (0.101 R)
• M78: 72,775,475 km (0.107 R)
• M79: 74,084,905 km (0.087 R)
• M80: 74,347,748 km (0.057 R)
• M81: 75,138,223 km (0.079 R)
• M82: 75,402,264 km (0.118 R)
• M83: 75,666,603 km (0.052 R)
• M84: 76,063,785 km (0.072 R)
• M85: 76,860,244 km (0.073 R)
• M86: 77,525,955 km (0.1 R)
• M87: 78,193,610 km (0.119 R)
• M88: 80,208,095 km (0.104 R)
• M89: 85,249,693 km (0.113 R)
• M90: 87,322,671 km (0.09 R)
• M91: 89,272,380 km (0.077 R)
• M92: 89,972,199 km (0.083 R)
• M93: 91,941,206 km (0.107 R)
• M94: 92,082,426 km (0.098 R)

Kuiper Belt

Range: 31.2 - 61.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 12,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit