🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.97 AU - 1.25 AU

Year: 448 Days

Day: 38.5 Hours

Environment

Temp: 10 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.17 AU - 2.25 AU

Year: 1258 Days

Day: 12.8 Hours

Environment

Temp: -100 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,080,787 km

• M1: 1,639,144 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.5

Radius: 9.1

Gravity: 10.78 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.44 AU - 4.92 AU

Year: 3272 Days

Day: 13.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 90,080,787 km

• M1: 119,379 km (0.113 R)
• M2: 193,879 km (0.064 R)
• M3: 254,765 km (0.118 R)
• M4: 381,624 km (0.116 R)
• M5: 441,164 km (0.027 R)
• M6: 591,211 km (0.096 R)
• M7: 694,284 km (0.067 R)
• M8: 815,009 km (0.095 R)
• M9: 1,090,868 km (0.118 R)
• M10: 1,340,696 km (0.055 R)
• M11: 1,465,461 km (0.049 R)
• M12: 1,550,881 km (0.111 R)
• M13: 1,652,608 km (0.069 R)
• M14: 2,443,831 km (0.077 R)
• M15: 2,528,802 km (0.101 R)
• M16: 2,771,899 km (0.1 R)
• M17: 2,968,321 km (0.062 R)
• M18: 3,337,379 km (0.11 R)
• M19: 3,412,926 km (0.118 R)
• M20: 3,643,007 km (0.099 R)
• M21: 4,613,748 km (0.069 R)
• M22: 4,783,093 km (0.072 R)
• M23: 4,911,448 km (0.085 R)
• M24: 5,237,272 km (0.088 R)
• M25: 5,347,376 km (0.12 R)
• M26: 5,570,127 km (0.036 R)
• M27: 5,841,498 km (0.053 R)
• M28: 6,094,019 km (0.099 R)
• M29: 6,279,969 km (0.103 R)
• M30: 6,776,933 km (0.094 R)
• M31: 7,262,079 km (0.112 R)
• M32: 7,583,415 km (0.111 R)
• M33: 7,783,428 km (0.093 R)
• M34: 8,061,380 km (0.067 R)
• M35: 8,368,505 km (0.114 R)
• M36: 8,679,220 km (0.046 R)
• M37: 9,073,260 km (0.116 R)
• M38: 9,499,764 km (0.056 R)
• M39: 9,661,479 km (0.029 R)
• M40: 10,566,995 km (0.114 R)
• M41: 11,413,570 km (0.049 R)
• M42: 11,700,648 km (0.028 R)
• M43: 12,194,171 km (0.103 R)
• M44: 12,252,664 km (0.079 R)
• M45: 12,458,062 km (0.119 R)
• M46: 12,576,095 km (0.104 R)
• M47: 12,813,058 km (0.045 R)
• M48: 13,111,356 km (0.062 R)
• M49: 13,442,266 km (0.096 R)
• M50: 13,745,352 km (0.076 R)
• M51: 13,836,756 km (0.079 R)
• M52: 14,699,487 km (0.118 R)
• M53: 14,761,869 km (0.06 R)
• M54: 14,855,368 km (0.096 R)
• M55: 15,168,925 km (0.11 R)
• M56: 16,444,396 km (0.113 R)
• M57: 17,357,542 km (0.042 R)
• M58: 17,555,310 km (0.069 R)
• M59: 18,825,695 km (0.062 R)
• M60: 18,927,123 km (0.061 R)
• M61: 19,028,849 km (0.114 R)
• M62: 19,164,834 km (0.066 R)
• M63: 19,267,009 km (0.056 R)
• M64: 20,786,026 km (0.12 R)
• M65: 21,206,845 km (0.104 R)
• M66: 21,914,742 km (0.113 R)
• M67: 22,092,913 km (0.119 R)
• M68: 22,164,271 km (0.073 R)
• M69: 22,810,384 km (0.119 R)
• M70: 23,644,841 km (0.076 R)
• M71: 23,754,496 km (0.062 R)
• M72: 24,047,559 km (0.118 R)
• M73: 24,415,569 km (0.104 R)
• M74: 24,489,471 km (0.083 R)
• M75: 24,563,372 km (0.094 R)
• M76: 24,637,273 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.1

Radius: 15

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.83 AU - 6.27 AU

Year: 4345 Days

Day: 7.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 90,080,787 km

• M1: 228,885 km (0.117 R)
• M2: 350,358 km (0.091 R)
• M3: 550,670 km (0.063 R)
• M4: 650,152 km (0.119 R)
• M5: 839,543 km (0.084 R)
• M6: 947,703 km (0.109 R)
• M7: 1,155,793 km (0.079 R)
• M8: 1,405,771 km (0.083 R)
• M9: 1,800,560 km (0.096 R)
• M10: 2,018,823 km (0.108 R)
• M11: 2,184,727 km (0.113 R)
• M12: 2,323,853 km (0.112 R)
• M13: 2,677,054 km (0.067 R)
• M14: 3,134,225 km (0.101 R)
• M15: 3,239,392 km (0.072 R)
• M16: 3,525,423 km (0.111 R)
• M17: 3,708,531 km (0.104 R)
• M18: 4,065,322 km (0.104 R)
• M19: 4,335,346 km (0.104 R)
• M20: 4,852,805 km (0.082 R)
• M21: 5,474,534 km (0.107 R)
• M22: 5,816,515 km (0.104 R)
• M23: 6,099,554 km (0.086 R)
• M24: 7,160,801 km (0.069 R)
• M25: 7,441,148 km (0.058 R)
• M26: 7,653,577 km (0.108 R)
• M27: 8,157,422 km (0.079 R)
• M28: 9,273,422 km (0.108 R)
• M29: 10,017,821 km (0.1 R)
• M30: 10,331,678 km (0.062 R)
• M31: 10,516,132 km (0.105 R)
• M32: 10,861,853 km (0.096 R)
• M33: 11,130,231 km (0.116 R)
• M34: 11,292,395 km (0.101 R)
• M35: 11,618,967 km (0.114 R)
• M36: 11,865,954 km (0.107 R)
• M37: 12,309,511 km (0.112 R)
• M38: 12,702,056 km (0.118 R)
• M39: 12,899,974 km (0.112 R)
• M40: 13,155,786 km (0.073 R)
• M41: 14,372,017 km (0.042 R)
• M42: 14,519,221 km (0.085 R)
• M43: 15,352,930 km (0.058 R)
• M44: 15,927,536 km (0.118 R)
• M45: 16,141,012 km (0.065 R)
• M46: 16,386,053 km (0.111 R)
• M47: 16,756,158 km (0.097 R)
• M48: 17,977,775 km (0.086 R)
• M49: 18,615,361 km (0.039 R)
• M50: 18,711,702 km (0.115 R)
• M51: 19,033,935 km (0.108 R)
• M52: 19,292,889 km (0.099 R)
• M53: 19,945,735 km (0.113 R)
• M54: 20,274,850 km (0.087 R)
• M55: 20,572,699 km (0.119 R)
• M56: 21,407,455 km (0.088 R)
• M57: 21,508,284 km (0.047 R)
• M58: 22,800,361 km (0.102 R)
• M59: 23,110,029 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.5

Radius: 5.6

Gravity: 19.91 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 10.58 AU - 15.1 AU

Year: 17616 Days

Day: 20.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 90,080,787 km

• M1: 206,744 km (0.074 R)
• M2: 387,010 km (0.115 R)
• M3: 494,271 km (0.09 R)
• M4: 919,429 km (0.105 R)
• M5: 1,040,154 km (0.101 R)
• M6: 1,115,103 km (0.119 R)
• M7: 1,270,535 km (0.071 R)
• M8: 1,990,400 km (0.027 R)
• M9: 2,341,057 km (0.047 R)
• M10: 2,440,091 km (0.079 R)
• M11: 2,991,060 km (0.061 R)
• M12: 3,062,717 km (0.102 R)
• M13: 3,964,792 km (0.094 R)
• M14: 4,082,975 km (0.102 R)
• M15: 4,363,471 km (0.086 R)
• M16: 4,444,702 km (0.059 R)
• M17: 4,985,199 km (0.08 R)
• M18: 5,198,526 km (0.084 R)
• M19: 5,328,078 km (0.098 R)
• M20: 5,546,191 km (0.102 R)
• M21: 5,722,867 km (0.12 R)
• M22: 6,036,424 km (0.114 R)
• M23: 6,963,033 km (0.097 R)
• M24: 7,735,706 km (0.084 R)
• M25: 7,982,692 km (0.1 R)
• M26: 8,484,443 km (0.114 R)
• M27: 8,739,208 km (0.029 R)
• M28: 9,308,428 km (0.107 R)
• M29: 9,889,616 km (0.048 R)
• M30: 10,050,135 km (0.058 R)
• M31: 10,103,840 km (0.118 R)
• M32: 10,157,695 km (0.067 R)
• M33: 10,482,472 km (0.073 R)
• M34: 10,646,132 km (0.08 R)
• M35: 11,646,045 km (0.089 R)
• M36: 13,201,115 km (0.101 R)
• M37: 13,259,906 km (0.101 R)
• M38: 13,674,293 km (0.068 R)
• M39: 13,912,901 km (0.102 R)
• M40: 14,759,176 km (0.039 R)
• M41: 15,871,436 km (0.059 R)
• M42: 16,185,143 km (0.094 R)
• M43: 16,500,944 km (0.067 R)
• M44: 16,946,447 km (0.098 R)
• M45: 17,267,035 km (0.077 R)
• M46: 18,701,529 km (0.101 R)
• M47: 19,232,601 km (0.107 R)
• M48: 20,581,825 km (0.113 R)
• M49: 20,786,774 km (0.103 R)
• M50: 21,061,136 km (0.093 R)
• M51: 21,613,601 km (0.069 R)
• M52: 25,611,455 km (0.098 R)
• M53: 26,720,274 km (0.114 R)
• M54: 27,168,170 km (0.099 R)
• M55: 27,693,857 km (0.088 R)
• M56: 30,683,570 km (0.108 R)
• M57: 31,309,338 km (0.032 R)
• M58: 32,176,707 km (0.073 R)
• M59: 32,494,153 km (0.068 R)
• M60: 33,131,889 km (0.109 R)
• M61: 33,693,480 km (0.107 R)
• M62: 34,338,994 km (0.083 R)
• M63: 35,478,631 km (0.118 R)
• M64: 35,724,420 km (0.091 R)
• M65: 36,382,651 km (0.105 R)
• M66: 36,961,894 km (0.114 R)
• M67: 37,294,151 km (0.099 R)
• M68: 37,627,604 km (0.115 R)
• M69: 38,802,097 km (0.067 R)
• M70: 40,500,632 km (0.052 R)
• M71: 41,014,949 km (0.076 R)
• M72: 41,186,987 km (0.08 R)
• M73: 41,790,464 km (0.07 R)
• M74: 42,919,330 km (0.067 R)
• M75: 44,410,372 km (0.036 R)
• M76: 45,384,254 km (0.092 R)
• M77: 48,802,117 km (0.105 R)
• M78: 49,806,965 km (0.11 R)
• M79: 51,651,208 km (0.058 R)
• M80: 53,330,145 km (0.11 R)
• M81: 53,517,741 km (0.116 R)
• M82: 57,316,479 km (0.063 R)
• M83: 57,604,904 km (0.084 R)
• M84: 57,990,268 km (0.11 R)
• M85: 59,054,208 km (0.068 R)
• M86: 59,151,148 km (0.077 R)
• M87: 60,711,005 km (0.086 R)
• M88: 60,808,991 km (0.093 R)
• M89: 64,269,938 km (0.068 R)
• M90: 65,471,059 km (0.1 R)
• M91: 65,672,119 km (0.09 R)
• M92: 65,772,649 km (0.039 R)
• M93: 66,276,045 km (0.101 R)
• M94: 66,679,810 km (0.031 R)
• M95: 67,692,588 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 275.4

Radius: 7.3

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 11.09 AU - 16.43 AU

Year: 19543 Days

Day: 16.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 90,080,787 km

• M1: 92,601 km (0.088 R)
• M2: 146,008 km (0.113 R)
• M3: 202,556 km (0.113 R)
• M4: 349,461 km (0.101 R)
• M5: 902,225 km (0.05 R)
• M6: 1,202,168 km (0.089 R)
• M7: 1,810,583 km (0.068 R)
• M8: 1,915,750 km (0.087 R)
• M9: 2,921,048 km (0.071 R)
• M10: 2,982,832 km (0.076 R)
• M11: 3,427,287 km (0.078 R)
• M12: 3,492,512 km (0.094 R)
• M13: 3,591,097 km (0.061 R)
• M14: 4,167,198 km (0.096 R)
• M15: 4,555,255 km (0.119 R)
• M16: 4,808,225 km (0.076 R)
• M17: 5,826,687 km (0.114 R)
• M18: 6,704,079 km (0.046 R)
• M19: 7,241,883 km (0.107 R)
• M20: 7,410,031 km (0.097 R)
• M21: 7,579,675 km (0.099 R)
• M22: 7,750,516 km (0.1 R)
• M23: 8,009,171 km (0.067 R)
• M24: 8,183,153 km (0.106 R)
• M25: 8,270,668 km (0.06 R)
• M26: 8,402,464 km (0.054 R)
• M27: 8,623,719 km (0.099 R)
• M28: 8,846,919 km (0.105 R)
• M29: 9,299,004 km (0.107 R)
• M30: 9,481,962 km (0.102 R)
• M31: 10,084,692 km (0.099 R)
• M32: 13,228,042 km (0.037 R)
• M33: 13,537,111 km (0.071 R)
• M34: 14,057,712 km (0.091 R)
• M35: 14,584,745 km (0.105 R)
• M36: 14,850,581 km (0.089 R)
• M37: 15,712,414 km (0.095 R)
• M38: 17,147,058 km (0.1 R)
• M39: 17,315,206 km (0.06 R)
• M40: 17,427,703 km (0.082 R)
• M41: 18,336,061 km (0.047 R)
• M42: 18,450,653 km (0.073 R)
• M43: 19,668,679 km (0.098 R)
• M44: 19,903,548 km (0.091 R)
• M45: 20,080,373 km (0.114 R)
• M46: 20,435,668 km (0.09 R)
• M47: 20,495,058 km (0.1 R)
• M48: 20,554,448 km (0.066 R)
• M49: 20,613,988 km (0.113 R)
• M50: 21,332,656 km (0.081 R)
• M51: 22,671,408 km (0.084 R)
• M52: 22,732,892 km (0.045 R)
• M53: 23,413,114 km (0.072 R)
• M54: 23,475,197 km (0.063 R)
• M55: 24,225,580 km (0.06 R)
• M56: 24,920,163 km (0.085 R)
• M57: 26,912,807 km (0.106 R)
• M58: 27,043,106 km (0.055 R)
• M59: 27,763,570 km (0.074 R)
• M60: 28,159,256 km (0.092 R)
• M61: 30,165,214 km (0.115 R)
• M62: 31,253,838 km (0.105 R)
• M63: 31,322,353 km (0.112 R)
• M64: 31,871,826 km (0.084 R)
• M65: 31,940,791 km (0.054 R)
• M66: 32,632,681 km (0.083 R)
• M67: 33,399,370 km (0.089 R)
• M68: 34,525,244 km (0.111 R)
• M69: 35,449,160 km (0.061 R)
• M70: 36,093,628 km (0.105 R)
• M71: 36,165,435 km (0.089 R)
• M72: 36,525,367 km (0.112 R)
• M73: 37,466,637 km (0.073 R)
• M74: 39,447,014 km (0.085 R)
• M75: 40,040,319 km (0.115 R)
• M76: 40,263,519 km (0.117 R)
• M77: 41,611,695 km (0.095 R)
• M78: 43,279,562 km (0.105 R)
• M79: 43,585,190 km (0.08 R)
• M80: 43,661,635 km (0.064 R)
• M81: 44,044,904 km (0.09 R)
• M82: 45,201,146 km (0.043 R)
• M83: 45,977,559 km (0.104 R)
• M84: 46,758,310 km (0.097 R)
• M85: 47,622,388 km (0.069 R)
• M86: 48,650,125 km (0.118 R)
• M87: 49,047,457 km (0.096 R)
• M88: 49,445,836 km (0.095 R)
• M89: 50,486,439 km (0.107 R)
• M90: 53,324,161 km (0.111 R)
• M91: 54,062,127 km (0.099 R)
• M92: 54,308,964 km (0.097 R)
• M93: 55,051,418 km (0.116 R)
• M94: 55,216,873 km (0.077 R)

Asteroid Belt

Center: 14.59 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 15.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.5

Radius: 7.3

Gravity: 15.9 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 11.67 AU - 19.15 AU

Year: 23162 Days

Day: 20 Hours

Environment

Temp: -197 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 90,080,787 km

• M1: 512,373 km (0.085 R)
• M2: 1,037,162 km (0.115 R)
• M3: 2,126,983 km (0.096 R)
• M4: 2,360,355 km (0.115 R)
• M5: 2,684,235 km (0.079 R)
• M6: 3,509,117 km (0.081 R)
• M7: 3,692,225 km (0.114 R)
• M8: 4,357,636 km (0.092 R)
• M9: 4,906,062 km (0.101 R)
• M10: 4,957,075 km (0.09 R)
• M11: 5,371,162 km (0.094 R)
• M12: 5,742,464 km (0.075 R)
• M13: 7,309,502 km (0.114 R)
• M14: 7,484,980 km (0.094 R)
• M15: 9,124,722 km (0.084 R)
• M16: 9,376,795 km (0.11 R)
• M17: 9,695,139 km (0.083 R)
• M18: 10,211,850 km (0.042 R)
• M19: 10,407,973 km (0.087 R)
• M20: 11,204,881 km (0.104 R)
• M21: 13,068,421 km (0.119 R)
• M22: 15,099,960 km (0.111 R)
• M23: 15,248,810 km (0.068 R)
• M24: 15,473,057 km (0.047 R)
• M25: 16,840,980 km (0.113 R)
• M26: 18,326,487 km (0.076 R)
• M27: 18,804,303 km (0.11 R)
• M28: 19,528,656 km (0.079 R)
• M29: 19,853,433 km (0.025 R)
• M30: 20,262,134 km (0.062 R)
• M31: 20,921,561 km (0.115 R)
• M32: 21,924,017 km (0.045 R)
• M33: 22,261,659 km (0.11 R)
• M34: 22,346,332 km (0.077 R)
• M35: 22,771,339 km (0.049 R)
• M36: 25,111,947 km (0.058 R)
• M37: 26,894,556 km (0.06 R)
• M38: 27,165,477 km (0.109 R)
• M39: 27,801,119 km (0.11 R)
• M40: 28,533,550 km (0.087 R)
• M41: 30,674,295 km (0.082 R)
• M42: 31,051,880 km (0.084 R)
• M43: 31,811,688 km (0.027 R)
• M44: 32,385,545 km (0.12 R)
• M45: 32,481,438 km (0.107 R)
• M46: 33,932,387 km (0.093 R)
• M47: 34,616,648 km (0.11 R)
• M48: 35,009,791 km (0.028 R)
• M49: 36,197,898 km (0.119 R)
• M50: 36,896,968 km (0.042 R)
• M51: 37,600,677 km (0.082 R)
• M52: 38,004,741 km (0.116 R)
• M53: 39,737,982 km (0.117 R)
• M54: 41,080,622 km (0.114 R)
• M55: 41,496,804 km (0.068 R)
• M56: 41,914,331 km (0.095 R)
• M57: 43,704,420 km (0.097 R)
• M58: 46,165,604 km (0.046 R)
• M59: 47,576,611 km (0.064 R)
• M60: 48,671,518 km (0.105 R)
• M61: 48,891,576 km (0.101 R)
• M62: 49,001,680 km (0.108 R)
• M63: 49,553,547 km (0.1 R)
• M64: 52,343,397 km (0.068 R)
• M65: 52,907,531 km (0.116 R)
• M66: 54,497,607 km (0.101 R)
• M67: 56,565,049 km (0.1 R)
• M68: 57,143,843 km (0.073 R)
• M69: 57,259,782 km (0.059 R)
• M70: 58,424,102 km (0.101 R)
• M71: 59,478,767 km (0.106 R)
• M72: 60,894,561 km (0.091 R)
• M73: 61,131,524 km (0.105 R)
• M74: 61,250,155 km (0.083 R)
• M75: 61,487,717 km (0.093 R)
• M76: 61,606,647 km (0.08 R)
• M77: 63,278,852 km (0.085 R)
• M78: 65,936,608 km (0.116 R)
• M79: 66,423,699 km (0.088 R)
• M80: 67,892,301 km (0.098 R)
• M81: 68,261,209 km (0.091 R)
• M82: 69,495,392 km (0.119 R)
• M83: 73,368,032 km (0.046 R)
• M84: 73,620,254 km (0.084 R)
• M85: 76,669,657 km (0.097 R)
• M86: 77,181,880 km (0.088 R)
• M87: 77,566,795 km (0.08 R)
• M88: 77,695,150 km (0.096 R)
• M89: 78,725,431 km (0.044 R)
• M90: 79,500,946 km (0.108 R)
• M91: 80,669,006 km (0.117 R)
• M92: 80,929,456 km (0.1 R)
• M93: 83,811,609 km (0.105 R)
• M94: 84,075,350 km (0.096 R)
• M95: 84,207,295 km (0.093 R)
• M96: 86,594,129 km (0.054 R)
• M97: 89,272,081 km (0.094 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 218 - 11,207 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit