🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.65 AU - 0.67 AU

Year: 195 Days

Day: 40 Hours

Environment

Temp: 189 °C

Axial Tilt: 14.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.77 AU - 1.07 AU

Year: 321 Days

Day: 22.4 Hours

Environment

Temp: 111 °C

Axial Tilt: 33 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.85 AU - 1.17 AU

Year: 369 Days

Day: 23.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.81 AU - 3.19 AU

Year: 1888 Days

Day: 19.2 Hours

Environment

Temp: -103 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 93,315,011 km

• M1: 454,927 km (0.083 R)
• M2: 1,301,950 km (0.108 R)

Asteroid Belt

Center: 6.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.3

Radius: 13.3

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.48 AU - 11.38 AU

Year: 11372 Days

Day: 8.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 93,315,011 km

• M1: 173,234 km (0.07 R)
• M2: 280,646 km (0.098 R)
• M3: 505,042 km (0.087 R)
• M4: 590,912 km (0.086 R)
• M5: 920,027 km (0.117 R)
• M6: 1,411,306 km (0.036 R)
• M7: 1,519,017 km (0.116 R)
• M8: 2,585,500 km (0.104 R)
• M9: 2,800,622 km (0.071 R)
• M10: 3,021,727 km (0.092 R)
• M11: 3,106,101 km (0.101 R)
• M12: 3,364,157 km (0.075 R)
• M13: 3,840,626 km (0.116 R)
• M14: 3,932,330 km (0.067 R)
• M15: 4,434,230 km (0.116 R)
• M16: 4,595,347 km (0.119 R)
• M17: 5,123,877 km (0.055 R)
• M18: 5,293,072 km (0.062 R)
• M19: 5,395,546 km (0.109 R)
• M20: 6,095,515 km (0.067 R)
• M21: 6,602,652 km (0.09 R)
• M22: 6,861,306 km (0.096 R)
• M23: 6,973,206 km (0.12 R)
• M24: 7,503,530 km (0.097 R)
• M25: 9,089,866 km (0.117 R)
• M26: 9,460,869 km (0.083 R)
• M27: 11,345,353 km (0.089 R)
• M28: 12,832,805 km (0.091 R)
• M29: 14,765,160 km (0.056 R)
• M30: 15,396,762 km (0.103 R)
• M31: 16,686,296 km (0.087 R)
• M32: 17,497,117 km (0.085 R)
• M33: 18,268,742 km (0.1 R)
• M34: 18,789,493 km (0.104 R)
• M35: 19,209,563 km (0.093 R)
• M36: 19,526,711 km (0.066 R)
• M37: 19,632,776 km (0.117 R)
• M38: 19,845,504 km (0.064 R)
• M39: 20,166,092 km (0.075 R)
• M40: 20,596,186 km (0.113 R)
• M41: 21,138,179 km (0.06 R)
• M42: 21,520,252 km (0.114 R)
• M43: 21,629,907 km (0.103 R)
• M44: 22,180,727 km (0.106 R)
• M45: 22,402,281 km (0.053 R)
• M46: 22,624,733 km (0.12 R)
• M47: 22,959,683 km (0.075 R)
• M48: 23,747,615 km (0.076 R)
• M49: 24,315,788 km (0.098 R)
• M50: 25,407,702 km (0.047 R)
• M51: 25,581,685 km (0.06 R)
• M52: 28,959,904 km (0.097 R)
• M53: 29,141,665 km (0.097 R)
• M54: 29,566,972 km (0.066 R)
• M55: 29,872,152 km (0.091 R)
• M56: 30,301,049 km (0.112 R)
• M57: 30,485,503 km (0.074 R)
• M58: 31,288,993 km (0.086 R)
• M59: 31,662,240 km (0.105 R)
• M60: 31,787,004 km (0.1 R)
• M61: 32,224,877 km (0.046 R)
• M62: 33,233,317 km (0.052 R)
• M63: 34,379,984 km (0.109 R)
• M64: 35,994,295 km (0.084 R)
• M65: 36,124,445 km (0.098 R)
• M66: 39,028,588 km (0.103 R)
• M67: 41,938,267 km (0.088 R)
• M68: 43,107,823 km (0.114 R)
• M69: 44,288,150 km (0.079 R)
• M70: 44,497,587 km (0.049 R)
• M71: 44,917,359 km (0.082 R)
• M72: 45,408,638 km (0.071 R)
• M73: 45,549,410 km (0.077 R)
• M74: 45,901,863 km (0.065 R)
• M75: 46,467,642 km (0.089 R)
• M76: 46,964,606 km (0.058 R)
• M77: 47,606,231 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697.2

Radius: 5

Gravity: 27.89 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 11.56 AU - 16.84 AU

Year: 19447 Days

Day: 17.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 93,315,011 km

• M1: 243,396 km (0.09 R)
• M2: 274,512 km (0.08 R)
• M3: 901,327 km (0.049 R)
• M4: 1,193,043 km (0.096 R)
• M5: 1,334,862 km (0.085 R)
• M6: 1,634,806 km (0.107 R)
• M7: 1,760,617 km (0.105 R)
• M8: 1,824,645 km (0.027 R)
• M9: 2,021,666 km (0.091 R)
• M10: 3,621,016 km (0.082 R)
• M11: 3,702,846 km (0.112 R)
• M12: 4,292,561 km (0.045 R)
• M13: 4,335,795 km (0.111 R)
• M14: 5,794,225 km (0.113 R)
• M15: 5,938,138 km (0.08 R)
• M16: 6,278,473 km (0.028 R)
• M17: 6,675,207 km (0.107 R)
• M18: 6,826,151 km (0.112 R)
• M19: 7,597,178 km (0.093 R)
• M20: 8,395,582 km (0.087 R)
• M21: 8,612,948 km (0.028 R)
• M22: 9,332,214 km (0.078 R)
• M23: 9,613,907 km (0.1 R)
• M24: 10,417,697 km (0.062 R)
• M25: 10,945,627 km (0.11 R)
• M26: 11,602,811 km (0.111 R)
• M27: 14,615,862 km (0.098 R)
• M28: 14,942,883 km (0.109 R)
• M29: 15,604,105 km (0.115 R)
• M30: 17,023,639 km (0.111 R)
• M31: 17,783,596 km (0.088 R)
• M32: 17,853,309 km (0.093 R)
• M33: 18,979,631 km (0.08 R)
• M34: 19,911,626 km (0.047 R)
• M35: 22,043,845 km (0.05 R)
• M36: 22,569,382 km (0.043 R)
• M37: 22,871,420 km (0.103 R)
• M38: 23,098,958 km (0.098 R)
• M39: 23,632,574 km (0.067 R)
• M40: 24,016,293 km (0.113 R)
• M41: 24,712,072 km (0.101 R)
• M42: 29,352,000 km (0.112 R)
• M43: 30,261,555 km (0.081 R)
• M44: 32,789,160 km (0.113 R)
• M45: 33,217,010 km (0.095 R)
• M46: 33,560,487 km (0.068 R)
• M47: 33,646,655 km (0.045 R)
• M48: 35,208,457 km (0.091 R)
• M49: 35,646,629 km (0.086 R)
• M50: 37,149,340 km (0.1 R)
• M51: 37,595,291 km (0.061 R)
• M52: 38,043,038 km (0.12 R)
• M53: 38,312,463 km (0.099 R)
• M54: 38,672,845 km (0.077 R)
• M55: 39,578,361 km (0.113 R)
• M56: 40,033,886 km (0.104 R)
• M57: 40,766,168 km (0.094 R)
• M58: 42,336,945 km (0.045 R)
• M59: 43,363,785 km (0.118 R)
• M60: 43,833,223 km (0.118 R)
• M61: 43,927,320 km (0.083 R)
• M62: 44,777,335 km (0.075 R)
• M63: 44,872,031 km (0.082 R)
• M64: 46,781,349 km (0.046 R)
• M65: 47,070,072 km (0.079 R)
• M66: 47,455,885 km (0.097 R)
• M67: 50,580,087 km (0.028 R)
• M68: 50,777,556 km (0.092 R)
• M69: 54,881,774 km (0.098 R)
• M70: 55,694,838 km (0.088 R)
• M71: 57,951,522 km (0.108 R)
• M72: 58,158,117 km (0.099 R)
• M73: 58,883,218 km (0.094 R)
• M74: 59,194,830 km (0.072 R)
• M75: 61,181,490 km (0.063 R)
• M76: 61,919,007 km (0.091 R)
• M77: 62,130,240 km (0.07 R)
• M78: 62,341,621 km (0.083 R)
• M79: 62,659,367 km (0.058 R)
• M80: 63,402,719 km (0.1 R)
• M81: 63,509,083 km (0.043 R)
• M82: 63,828,774 km (0.082 R)
• M83: 64,469,651 km (0.051 R)
• M84: 64,897,950 km (0.103 R)
• M85: 65,327,445 km (0.102 R)
• M86: 69,234,044 km (0.112 R)
• M87: 69,782,470 km (0.11 R)
• M88: 69,892,424 km (0.117 R)
• M89: 70,112,333 km (0.087 R)
• M90: 71,658,427 km (0.1 R)
• M91: 71,880,131 km (0.065 R)
• M92: 72,324,437 km (0.027 R)
• M93: 73,103,991 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.3

Radius: 6.5

Gravity: 22.28 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 16.44 AU - 18.88 AU

Year: 26972 Days

Day: 21 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 93,315,011 km

• M1: 199,863 km (0.107 R)
• M2: 440,715 km (0.06 R)
• M3: 727,644 km (0.076 R)
• M4: 1,411,606 km (0.099 R)
• M5: 1,751,342 km (0.119 R)
• M6: 2,157,800 km (0.052 R)
• M7: 2,637,710 km (0.103 R)
• M8: 3,343,512 km (0.096 R)
• M9: 3,896,426 km (0.051 R)
• M10: 4,263,091 km (0.032 R)
• M11: 4,531,619 km (0.12 R)
• M12: 6,870,731 km (0.103 R)
• M13: 7,829,205 km (0.075 R)
• M14: 8,224,293 km (0.11 R)
• M15: 8,491,325 km (0.072 R)
• M16: 10,800,218 km (0.067 R)
• M17: 11,461,740 km (0.059 R)
• M18: 12,516,405 km (0.062 R)
• M19: 14,235,733 km (0.089 R)
• M20: 14,475,838 km (0.106 R)
• M21: 14,798,072 km (0.099 R)
• M22: 15,122,699 km (0.115 R)
• M23: 17,975,531 km (0.115 R)
• M24: 18,757,927 km (0.085 R)
• M25: 19,374,121 km (0.076 R)
• M26: 20,086,357 km (0.06 R)
• M27: 20,265,724 km (0.099 R)
• M28: 20,535,898 km (0.109 R)
• M29: 21,262,046 km (0.114 R)
• M30: 21,720,264 km (0.111 R)
• M31: 21,996,721 km (0.097 R)
• M32: 22,181,624 km (0.046 R)
• M33: 22,367,126 km (0.091 R)
• M34: 22,739,475 km (0.113 R)
• M35: 25,017,102 km (0.105 R)
• M36: 25,792,169 km (0.109 R)
• M37: 26,575,314 km (0.074 R)
• M38: 26,673,749 km (0.078 R)
• M39: 27,465,571 km (0.116 R)
• M40: 29,478,560 km (0.083 R)
• M41: 30,399,933 km (0.117 R)
• M42: 33,644,860 km (0.097 R)
• M43: 34,714,934 km (0.102 R)
• M44: 37,438,363 km (0.109 R)
• M45: 38,213,130 km (0.082 R)
• M46: 38,658,334 km (0.115 R)
• M47: 39,217,082 km (0.109 R)
• M48: 42,280,697 km (0.045 R)
• M49: 42,510,629 km (0.104 R)
• M50: 43,550,633 km (0.076 R)
• M51: 44,131,970 km (0.069 R)
• M52: 44,482,029 km (0.089 R)
• M53: 44,599,015 km (0.098 R)
• M54: 45,420,158 km (0.105 R)
• M55: 45,655,625 km (0.084 R)
• M56: 45,773,508 km (0.053 R)
• M57: 46,246,237 km (0.087 R)
• M58: 46,958,323 km (0.109 R)
• M59: 50,450,685 km (0.047 R)
• M60: 58,832,205 km (0.037 R)
• M61: 59,990,541 km (0.057 R)
• M62: 63,115,790 km (0.113 R)
• M63: 65,627,389 km (0.117 R)
• M64: 66,293,698 km (0.075 R)
• M65: 66,828,361 km (0.094 R)
• M66: 67,902,025 km (0.099 R)
• M67: 69,252,146 km (0.1 R)
• M68: 69,794,737 km (0.098 R)
• M69: 70,474,809 km (0.055 R)
• M70: 71,704,503 km (0.094 R)
• M71: 71,978,866 km (0.108 R)
• M72: 74,879,419 km (0.078 R)
• M73: 75,854,648 km (0.083 R)
• M74: 77,536,427 km (0.105 R)
• M75: 77,958,891 km (0.092 R)
• M76: 78,099,812 km (0.114 R)
• M77: 78,805,765 km (0.062 R)
• M78: 80,508,936 km (0.088 R)
• M79: 80,794,070 km (0.117 R)
• M80: 84,819,599 km (0.104 R)
• M81: 85,836,266 km (0.053 R)
• M82: 86,710,815 km (0.119 R)
• M83: 89,499,619 km (0.059 R)
• M84: 92,168,744 km (0.087 R)
• M85: 94,262,666 km (0.116 R)
• M86: 98,497,482 km (0.097 R)
• M87: 99,413,021 km (0.108 R)
• M88: 101,868,072 km (0.057 R)
• M89: 102,022,157 km (0.108 R)
• M90: 102,176,393 km (0.055 R)
• M91: 102,330,628 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 108.2

Radius: 6.7

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 13.93 AU - 22.31 AU

Year: 28033 Days

Day: 15.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 93,315,011 km

• M1: 311,463 km (0.059 R)
• M2: 1,471,893 km (0.116 R)
• M3: 3,161,302 km (0.112 R)
• M4: 4,376,486 km (0.044 R)
• M5: 4,752,575 km (0.104 R)
• M6: 4,822,138 km (0.066 R)
• M7: 5,318,204 km (0.106 R)
• M8: 5,830,427 km (0.057 R)
• M9: 7,338,972 km (0.118 R)
• M10: 7,621,862 km (0.086 R)
• M11: 8,534,259 km (0.047 R)
• M12: 8,703,754 km (0.114 R)
• M13: 9,393,250 km (0.043 R)
• M14: 9,480,615 km (0.072 R)
• M15: 9,921,780 km (0.093 R)
• M16: 10,100,100 km (0.106 R)
• M17: 11,099,863 km (0.096 R)
• M18: 11,799,382 km (0.095 R)
• M19: 17,347,369 km (0.074 R)
• M20: 18,649,918 km (0.085 R)
• M21: 19,479,887 km (0.081 R)
• M22: 20,605,312 km (0.099 R)
• M23: 22,800,959 km (0.071 R)
• M24: 22,918,543 km (0.112 R)
• M25: 24,405,546 km (0.104 R)
• M26: 25,251,821 km (0.116 R)
• M27: 27,597,067 km (0.065 R)
• M28: 27,785,112 km (0.1 R)
• M29: 28,922,504 km (0.048 R)
• M30: 32,029,353 km (0.104 R)
• M31: 32,359,067 km (0.093 R)
• M32: 35,172,554 km (0.108 R)
• M33: 35,990,555 km (0.112 R)
• M34: 36,196,102 km (0.1 R)
• M35: 37,437,316 km (0.08 R)
• M36: 38,132,946 km (0.112 R)
• M37: 41,315,491 km (0.108 R)
• M38: 41,674,376 km (0.119 R)
• M39: 42,829,721 km (0.089 R)
• M40: 43,265,649 km (0.117 R)
• M41: 46,730,934 km (0.083 R)
• M42: 48,081,653 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.9

Radius: 7.3

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 18.91 AU - 20.99 AU

Year: 32385 Days

Day: 23.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 93,315,011 km

• M1: 145,409 km (0.055 R)
• M2: 727,494 km (0.073 R)
• M3: 893,249 km (0.071 R)
• M4: 1,293,274 km (0.11 R)
• M5: 1,359,396 km (0.115 R)
• M6: 2,607,790 km (0.11 R)
• M7: 3,353,685 km (0.055 R)
• M8: 3,679,060 km (0.104 R)
• M9: 4,063,377 km (0.117 R)
• M10: 4,360,030 km (0.112 R)
• M11: 4,921,920 km (0.112 R)
• M12: 5,079,147 km (0.084 R)
• M13: 5,724,662 km (0.115 R)
• M14: 5,890,117 km (0.09 R)
• M15: 5,945,618 km (0.07 R)
• M16: 6,057,068 km (0.092 R)
• M17: 6,282,213 km (0.068 R)
• M18: 7,091,837 km (0.077 R)
• M19: 7,150,778 km (0.057 R)
• M20: 7,508,766 km (0.111 R)
• M21: 7,811,552 km (0.083 R)
• M22: 7,995,109 km (0.104 R)
• M23: 8,180,161 km (0.055 R)
• M24: 10,373,864 km (0.117 R)
• M25: 11,051,692 km (0.083 R)
• M26: 11,120,208 km (0.035 R)
• M27: 11,674,019 km (0.078 R)
• M28: 11,883,905 km (0.046 R)
• M29: 12,664,507 km (0.108 R)
• M30: 13,024,739 km (0.102 R)
• M31: 13,608,170 km (0.099 R)
• M32: 13,755,375 km (0.104 R)
• M33: 17,283,640 km (0.076 R)
• M34: 17,442,962 km (0.094 R)
• M35: 18,166,567 km (0.063 R)
• M36: 18,491,194 km (0.087 R)
• M37: 18,654,256 km (0.106 R)
• M38: 20,059,578 km (0.113 R)
• M39: 20,143,353 km (0.119 R)
• M40: 20,227,278 km (0.067 R)
• M41: 23,234,045 km (0.114 R)
• M42: 23,322,009 km (0.077 R)
• M43: 25,194,226 km (0.096 R)
• M44: 25,465,597 km (0.091 R)
• M45: 28,232,260 km (0.098 R)
• M46: 29,175,474 km (0.116 R)
• M47: 29,460,608 km (0.089 R)
• M48: 32,951,624 km (0.103 R)
• M49: 33,546,126 km (0.101 R)
• M50: 33,645,608 km (0.068 R)
• M51: 35,249,597 km (0.087 R)
• M52: 37,289,513 km (0.118 R)
• M53: 37,598,732 km (0.095 R)
• M54: 38,219,862 km (0.11 R)
• M55: 39,577,164 km (0.107 R)
• M56: 41,269,265 km (0.12 R)
• M57: 42,553,862 km (0.053 R)
• M58: 42,661,423 km (0.045 R)
• M59: 43,525,800 km (0.115 R)
• M60: 45,932,530 km (0.063 R)
• M61: 46,374,742 km (0.103 R)
• M62: 46,707,298 km (0.053 R)
• M63: 47,263,353 km (0.098 R)
• M64: 50,645,462 km (0.071 R)
• M65: 51,904,926 km (0.095 R)
• M66: 54,104,763 km (0.088 R)
• M67: 54,571,658 km (0.105 R)
• M68: 55,274,768 km (0.11 R)
• M69: 55,980,720 km (0.117 R)
• M70: 56,571,183 km (0.118 R)
• M71: 57,758,691 km (0.099 R)
• M72: 61,734,852 km (0.111 R)
• M73: 63,817,404 km (0.116 R)
• M74: 64,434,346 km (0.062 R)
• M75: 66,047,610 km (0.038 R)
• M76: 66,421,754 km (0.073 R)
• M77: 68,555,319 km (0.074 R)
• M78: 69,440,340 km (0.054 R)
• M79: 69,947,776 km (0.065 R)
• M80: 71,221,751 km (0.118 R)
• M81: 74,699,453 km (0.06 R)
• M82: 74,829,453 km (0.086 R)
• M83: 76,524,547 km (0.117 R)
• M84: 77,179,785 km (0.106 R)
• M85: 77,442,479 km (0.087 R)
• M86: 80,085,275 km (0.117 R)
• M87: 80,351,260 km (0.053 R)
• M88: 82,220,785 km (0.109 R)
• M89: 83,834,647 km (0.067 R)
• M90: 84,781,003 km (0.06 R)
• M91: 88,601,284 km (0.105 R)
• M92: 90,393,915 km (0.071 R)
• M93: 91,086,553 km (0.093 R)
• M94: 91,503,034 km (0.084 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 13,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit