🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.2 AU - 1.28 AU

Year: 485 Days

Day: 16.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 55.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.67 AU - 2.17 AU

Year: 935 Days

Day: 18.3 Hours

Environment

Temp: -56 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.34 AU - 3.2 AU

Year: 1620 Days

Day: 20.4 Hours

Environment

Temp: -89 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,457,394 km

• M1: 283,039 km (0.119 R)
• M2: 1,879,996 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.71 AU - 3.03 AU

Year: 1709 Days

Day: 28.9 Hours

Environment

Temp: -84 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,457,394 km

• M1: 816,056 km (0.093 R)
• M2: 1,148,762 km (0.052 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.81 AU - 5.59 AU

Year: 4168 Days

Day: 45.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.3

Radius: 12.8

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.49 AU - 5.67 AU

Year: 4633 Days

Day: 6.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 66,457,394 km

• M1: 223,050 km (0.116 R)
• M2: 325,076 km (0.09 R)
• M3: 587,770 km (0.087 R)
• M4: 724,802 km (0.085 R)
• M5: 1,072,766 km (0.083 R)
• M6: 1,472,193 km (0.053 R)
• M7: 1,805,796 km (0.109 R)
• M8: 1,917,246 km (0.094 R)
• M9: 2,562,312 km (0.119 R)
• M10: 2,670,172 km (0.079 R)
• M11: 2,853,430 km (0.11 R)
• M12: 2,965,479 km (0.116 R)
• M13: 3,060,024 km (0.04 R)
• M14: 3,193,915 km (0.078 R)
• M15: 3,330,049 km (0.086 R)
• M16: 3,448,081 km (0.113 R)
• M17: 3,688,784 km (0.105 R)
• M18: 3,997,405 km (0.085 R)
• M19: 4,123,217 km (0.092 R)
• M20: 4,421,963 km (0.089 R)
• M21: 4,508,730 km (0.036 R)
• M22: 4,728,041 km (0.108 R)
• M23: 5,758,022 km (0.113 R)
• M24: 5,853,017 km (0.039 R)
• M25: 5,948,460 km (0.041 R)
• M26: 6,630,926 km (0.107 R)
• M27: 6,805,506 km (0.056 R)
• M28: 6,906,036 km (0.088 R)
• M29: 7,159,305 km (0.049 R)
• M30: 7,261,481 km (0.119 R)
• M31: 7,597,029 km (0.081 R)
• M32: 7,990,471 km (0.112 R)
• M33: 8,256,606 km (0.1 R)
• M34: 8,907,057 km (0.119 R)
• M35: 9,377,842 km (0.045 R)
• M36: 9,517,865 km (0.069 R)
• M37: 9,630,363 km (0.108 R)
• M38: 9,715,185 km (0.099 R)
• M39: 10,721,530 km (0.117 R)
• M40: 10,838,665 km (0.111 R)
• M41: 11,460,693 km (0.065 R)
• M42: 11,610,440 km (0.081 R)
• M43: 12,155,276 km (0.115 R)
• M44: 12,246,830 km (0.067 R)
• M45: 12,925,705 km (0.05 R)
• M46: 13,238,364 km (0.096 R)
• M47: 13,743,856 km (0.112 R)
• M48: 13,966,906 km (0.065 R)
• M49: 14,159,139 km (0.085 R)
• M50: 14,449,210 km (0.066 R)
• M51: 14,676,000 km (0.045 R)
• M52: 14,936,899 km (0.048 R)
• M53: 15,661,850 km (0.072 R)
• M54: 15,995,304 km (0.113 R)
• M55: 16,465,938 km (0.076 R)
• M56: 17,421,121 km (0.041 R)
• M57: 18,044,495 km (0.109 R)
• M58: 18,323,944 km (0.112 R)
• M59: 18,429,111 km (0.049 R)
• M60: 18,816,420 km (0.093 R)
• M61: 19,170,967 km (0.101 R)
• M62: 19,384,742 km (0.095 R)
• M63: 19,563,362 km (0.114 R)
• M64: 19,814,537 km (0.088 R)
• M65: 20,102,962 km (0.039 R)
• M66: 20,320,028 km (0.118 R)
• M67: 21,270,124 km (0.079 R)
• M68: 21,639,482 km (0.114 R)
• M69: 21,824,833 km (0.105 R)
• M70: 21,973,683 km (0.072 R)
• M71: 23,099,856 km (0.106 R)
• M72: 24,514,753 km (0.082 R)
• M73: 24,824,271 km (0.12 R)
• M74: 25,330,211 km (0.077 R)
• M75: 26,036,313 km (0.1 R)
• M76: 26,510,538 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.3

Radius: 14.2

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.13 AU - 6.85 AU

Year: 5153 Days

Day: 13 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 66,457,394 km

• M1: 180,864 km (0.097 R)
• M2: 271,520 km (0.05 R)
• M3: 457,769 km (0.093 R)
• M4: 558,898 km (0.088 R)
• M5: 748,887 km (0.042 R)
• M6: 953,836 km (0.088 R)
• M7: 1,130,362 km (0.109 R)
• M8: 1,247,945 km (0.104 R)
• M9: 1,390,662 km (0.114 R)
• M10: 1,560,904 km (0.101 R)
• M11: 1,682,228 km (0.099 R)
• M12: 1,899,444 km (0.046 R)
• M13: 2,005,808 km (0.057 R)
• M14: 2,150,769 km (0.119 R)
• M15: 2,286,903 km (0.075 R)
• M16: 2,660,000 km (0.099 R)
• M17: 2,753,050 km (0.113 R)
• M18: 3,334,686 km (0.084 R)
• M19: 3,464,238 km (0.096 R)
• M20: 3,639,866 km (0.081 R)
• M21: 4,045,874 km (0.094 R)
• M22: 4,419,121 km (0.082 R)
• M23: 4,674,335 km (0.081 R)
• M24: 4,918,030 km (0.034 R)
• M25: 5,115,948 km (0.049 R)
• M26: 5,384,177 km (0.078 R)
• M27: 5,554,120 km (0.103 R)
• M28: 5,777,919 km (0.025 R)
• M29: 5,952,050 km (0.107 R)
• M30: 6,180,935 km (0.108 R)
• M31: 6,412,962 km (0.106 R)
• M32: 6,629,579 km (0.098 R)
• M33: 6,738,935 km (0.034 R)
• M34: 6,830,489 km (0.077 R)
• M35: 7,014,794 km (0.077 R)
• M36: 7,200,744 km (0.064 R)
• M37: 7,313,092 km (0.106 R)
• M38: 7,577,581 km (0.052 R)
• M39: 7,749,319 km (0.108 R)
• M40: 7,845,361 km (0.026 R)
• M41: 8,155,178 km (0.12 R)
• M42: 8,272,463 km (0.104 R)
• M43: 8,508,528 km (0.104 R)
• M44: 8,727,091 km (0.112 R)
• M45: 8,927,253 km (0.047 R)
• M46: 9,189,947 km (0.109 R)
• M47: 9,660,881 km (0.041 R)
• M48: 10,118,650 km (0.118 R)
• M49: 10,562,358 km (0.119 R)
• M50: 10,669,021 km (0.096 R)
• M51: 11,077,423 km (0.043 R)
• M52: 12,109,499 km (0.098 R)
• M53: 12,512,964 km (0.079 R)
• M54: 12,648,500 km (0.119 R)
• M55: 13,126,465 km (0.025 R)
• M56: 13,425,511 km (0.092 R)
• M57: 13,564,189 km (0.096 R)
• M58: 13,773,177 km (0.04 R)
• M59: 14,335,814 km (0.118 R)
• M60: 14,738,831 km (0.115 R)
• M61: 15,193,758 km (0.081 R)
• M62: 15,921,552 km (0.093 R)
• M63: 16,043,923 km (0.115 R)
• M64: 16,363,613 km (0.086 R)
• M65: 16,561,382 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.1

Radius: 14.6

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.89 AU - 10.09 AU

Year: 9474 Days

Day: 6.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 66,457,394 km

• M1: 344,973 km (0.12 R)
• M2: 468,092 km (0.097 R)
• M3: 597,195 km (0.087 R)
• M4: 1,272,180 km (0.083 R)
• M5: 2,185,176 km (0.087 R)
• M6: 2,367,536 km (0.077 R)
• M7: 2,860,461 km (0.097 R)
• M8: 3,207,079 km (0.085 R)
• M9: 3,415,768 km (0.085 R)
• M10: 3,598,128 km (0.116 R)
• M11: 3,909,591 km (0.096 R)
• M12: 4,004,735 km (0.069 R)
• M13: 4,327,866 km (0.11 R)
• M14: 4,659,375 km (0.087 R)
• M15: 4,896,488 km (0.063 R)
• M16: 5,068,376 km (0.075 R)
• M17: 5,172,496 km (0.059 R)
• M18: 5,921,233 km (0.074 R)
• M19: 6,104,640 km (0.114 R)
• M20: 6,895,415 km (0.108 R)
• M21: 7,127,441 km (0.1 R)
• M22: 7,440,699 km (0.064 R)
• M23: 7,559,330 km (0.119 R)
• M24: 8,203,050 km (0.117 R)
• M25: 8,448,989 km (0.112 R)
• M26: 9,032,420 km (0.087 R)
• M27: 9,201,615 km (0.047 R)
• M28: 9,586,082 km (0.035 R)
• M29: 10,019,317 km (0.085 R)
• M30: 10,194,496 km (0.045 R)
• M31: 10,815,627 km (0.116 R)
• M32: 11,130,830 km (0.113 R)
• M33: 11,403,397 km (0.113 R)
• M34: 11,494,652 km (0.104 R)
• M35: 11,955,114 km (0.104 R)
• M36: 12,515,807 km (0.082 R)
• M37: 14,347,333 km (0.112 R)
• M38: 14,644,136 km (0.083 R)
• M39: 15,395,117 km (0.101 R)
• M40: 15,749,813 km (0.055 R)
• M41: 16,209,976 km (0.113 R)
• M42: 16,622,717 km (0.096 R)
• M43: 16,934,629 km (0.09 R)
• M44: 17,881,733 km (0.119 R)
• M45: 17,988,097 km (0.065 R)
• M46: 18,792,036 km (0.107 R)
• M47: 18,900,195 km (0.108 R)
• M48: 19,334,627 km (0.11 R)
• M49: 20,937,120 km (0.09 R)
• M50: 21,161,516 km (0.065 R)
• M51: 22,812,179 km (0.119 R)
• M52: 26,720,573 km (0.097 R)
• M53: 27,575,974 km (0.119 R)
• M54: 27,883,697 km (0.12 R)
• M55: 28,688,982 km (0.06 R)
• M56: 29,251,021 km (0.12 R)
• M57: 30,132,452 km (0.101 R)
• M58: 30,767,495 km (0.114 R)
• M59: 31,921,642 km (0.063 R)
• M60: 32,179,998 km (0.059 R)
• M61: 33,024,628 km (0.08 R)
• M62: 33,285,975 km (0.104 R)
• M63: 34,868,421 km (0.067 R)
• M64: 35,134,556 km (0.076 R)
• M65: 36,138,657 km (0.111 R)
• M66: 36,407,933 km (0.077 R)
• M67: 36,813,194 km (0.1 R)
• M68: 37,764,636 km (0.076 R)
• M69: 37,901,219 km (0.092 R)
• M70: 41,087,803 km (0.041 R)
• M71: 44,575,678 km (0.092 R)
• M72: 44,792,295 km (0.056 R)
• M73: 45,009,212 km (0.043 R)
• M74: 45,298,983 km (0.061 R)
• M75: 46,904,168 km (0.076 R)
• M76: 47,198,128 km (0.064 R)
• M77: 47,566,289 km (0.066 R)
• M78: 47,861,445 km (0.078 R)
• M79: 48,602,254 km (0.049 R)
• M80: 48,825,155 km (0.104 R)
• M81: 49,197,504 km (0.063 R)
• M82: 50,095,091 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965.3

Radius: 3.2

Gravity: 94.27 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 12.68 AU - 16.84 AU

Year: 19930 Days

Day: 22.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 66,457,394 km

• M1: 69,862 km (0.085 R)
• M2: 112,498 km (0.11 R)
• M3: 165,904 km (0.12 R)
• M4: 262,544 km (0.112 R)
• M5: 695,032 km (0.114 R)
• M6: 798,254 km (0.059 R)
• M7: 1,649,167 km (0.09 R)
• M8: 1,928,616 km (0.09 R)
• M9: 2,222,725 km (0.037 R)
• M10: 2,570,091 km (0.079 R)
• M11: 2,770,253 km (0.064 R)
• M12: 3,444,192 km (0.109 R)
• M13: 3,531,856 km (0.084 R)
• M14: 3,981,099 km (0.051 R)
• M15: 4,027,025 km (0.089 R)
• M16: 4,119,477 km (0.066 R)
• M17: 4,883,174 km (0.055 R)
• M18: 7,648,341 km (0.103 R)
• M19: 9,361,835 km (0.12 R)
• M20: 10,993,648 km (0.077 R)
• M21: 11,252,453 km (0.113 R)
• M22: 12,307,417 km (0.082 R)
• M23: 12,441,457 km (0.03 R)
• M24: 12,711,032 km (0.044 R)
• M25: 13,808,482 km (0.1 R)
• M26: 14,298,116 km (0.085 R)
• M27: 14,936,001 km (0.067 R)
• M28: 15,222,481 km (0.089 R)
• M29: 15,655,567 km (0.058 R)
• M30: 15,946,535 km (0.063 R)
• M31: 16,386,352 km (0.094 R)
• M32: 16,755,859 km (0.053 R)
• M33: 17,653,895 km (0.067 R)
• M34: 17,729,442 km (0.093 R)
• M35: 18,875,511 km (0.11 R)
• M36: 19,030,046 km (0.032 R)
• M37: 20,124,055 km (0.105 R)
• M38: 22,453,892 km (0.034 R)
• M39: 23,775,440 km (0.097 R)
• M40: 25,804,436 km (0.101 R)
• M41: 26,147,913 km (0.079 R)
• M42: 26,493,035 km (0.108 R)
• M43: 28,152,374 km (0.112 R)
• M44: 28,683,447 km (0.101 R)
• M45: 30,025,190 km (0.048 R)
• M46: 30,115,398 km (0.068 R)
• M47: 31,845,946 km (0.047 R)
• M48: 32,862,463 km (0.11 R)
• M49: 34,643,127 km (0.086 R)
• M50: 36,166,781 km (0.112 R)
• M51: 36,743,780 km (0.114 R)
• M52: 37,809,515 km (0.102 R)
• M53: 37,906,904 km (0.115 R)
• M54: 38,885,423 km (0.105 R)
• M55: 39,971,205 km (0.116 R)
• M56: 40,966,928 km (0.095 R)
• M57: 42,374,794 km (0.102 R)
• M58: 43,696,042 km (0.112 R)
• M59: 45,134,126 km (0.108 R)
• M60: 45,237,349 km (0.05 R)
• M61: 47,320,050 km (0.107 R)
• M62: 47,635,104 km (0.113 R)
• M63: 47,740,271 km (0.112 R)
• M64: 51,146,764 km (0.084 R)
• M65: 51,577,905 km (0.108 R)
• M66: 52,444,077 km (0.084 R)
• M67: 53,205,979 km (0.108 R)
• M68: 53,533,598 km (0.064 R)
• M69: 54,740,554 km (0.097 R)
• M70: 55,402,823 km (0.091 R)
• M71: 57,069,643 km (0.118 R)
• M72: 57,965,435 km (0.111 R)
• M73: 58,415,126 km (0.064 R)
• M74: 59,091,608 km (0.058 R)
• M75: 59,317,800 km (0.111 R)
• M76: 60,338,805 km (0.108 R)
• M77: 60,566,493 km (0.082 R)
• M78: 61,365,645 km (0.097 R)
• M79: 62,974,420 km (0.11 R)
• M80: 65,296,628 km (0.108 R)
• M81: 65,530,300 km (0.116 R)
• M82: 66,820,881 km (0.113 R)
• M83: 68,831,925 km (0.102 R)
• M84: 68,950,855 km (0.097 R)
• M85: 69,069,935 km (0.086 R)
• M86: 71,102,970 km (0.104 R)
• M87: 72,187,405 km (0.118 R)
• M88: 72,429,006 km (0.12 R)
• M89: 72,671,055 km (0.119 R)
• M90: 77,072,225 km (0.103 R)
• M91: 77,319,211 km (0.034 R)
• M92: 78,558,330 km (0.087 R)
• M93: 79,803,882 km (0.074 R)
• M94: 81,307,340 km (0.111 R)
• M95: 84,978,921 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.8

Radius: 3.2

Gravity: 26.25 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 16.66 AU - 18.64 AU

Year: 26061 Days

Day: 23.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 66,457,394 km

• M1: 45,777 km (0.119 R)
• M2: 96,491 km (0.062 R)
• M3: 213,775 km (0.091 R)
• M4: 286,779 km (0.113 R)
• M5: 782,397 km (0.104 R)
• M6: 850,165 km (0.115 R)
• M7: 1,514,529 km (0.103 R)
• M8: 3,975,713 km (0.116 R)
• M9: 4,777,558 km (0.106 R)
• M10: 5,324,787 km (0.069 R)
• M11: 6,159,543 km (0.099 R)
• M12: 8,143,510 km (0.042 R)
• M13: 8,391,842 km (0.093 R)
• M14: 8,743,696 km (0.084 R)
• M15: 9,100,338 km (0.069 R)
• M16: 9,461,617 km (0.119 R)
• M17: 9,722,665 km (0.065 R)
• M18: 11,670,279 km (0.083 R)
• M19: 13,323,635 km (0.098 R)
• M20: 14,445,769 km (0.097 R)
• M21: 15,659,456 km (0.091 R)
• M22: 17,221,707 km (0.119 R)
• M23: 17,732,135 km (0.078 R)
• M24: 17,924,667 km (0.082 R)
• M25: 18,832,876 km (0.105 R)
• M26: 19,822,466 km (0.073 R)
• M27: 19,955,758 km (0.11 R)
• M28: 20,022,478 km (0.1 R)
• M29: 23,100,604 km (0.093 R)
• M30: 23,451,561 km (0.12 R)
• M31: 24,229,918 km (0.055 R)
• M32: 24,443,694 km (0.072 R)
• M33: 24,658,067 km (0.071 R)
• M34: 25,521,846 km (0.119 R)
• M35: 27,130,920 km (0.084 R)
• M36: 27,798,576 km (0.116 R)
• M37: 29,986,444 km (0.116 R)
• M38: 30,522,902 km (0.086 R)
• M39: 30,599,796 km (0.045 R)
• M40: 31,449,661 km (0.111 R)
• M41: 32,072,736 km (0.056 R)
• M42: 32,150,826 km (0.109 R)
• M43: 32,307,306 km (0.096 R)
• M44: 34,524,945 km (0.109 R)
• M45: 36,057,425 km (0.107 R)
• M46: 37,200,802 km (0.103 R)
• M47: 38,522,050 km (0.114 R)
• M48: 38,771,430 km (0.117 R)
• M49: 39,774,633 km (0.07 R)
• M50: 39,942,631 km (0.105 R)
• M51: 40,617,019 km (0.057 R)
• M52: 41,210,174 km (0.108 R)
• M53: 41,550,360 km (0.052 R)
• M54: 48,278,973 km (0.041 R)
• M55: 48,907,284 km (0.056 R)
• M56: 51,264,198 km (0.117 R)
• M57: 51,905,076 km (0.052 R)
• M58: 53,750,665 km (0.054 R)
• M59: 53,843,565 km (0.1 R)
• M60: 54,401,714 km (0.117 R)
• M61: 56,181,929 km (0.118 R)
• M62: 61,054,033 km (0.066 R)
• M63: 62,122,461 km (0.063 R)
• M64: 63,491,131 km (0.056 R)
• M65: 63,883,976 km (0.092 R)
• M66: 63,982,411 km (0.12 R)
• M67: 65,562,763 km (0.098 R)
• M68: 66,059,278 km (0.118 R)

Kuiper Belt

Range: 31.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 16,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit