lunar distance | 1 LD | 2 LD | 3 LD | 4 LD | 5 LD | 6 LD | 7 LD | 8 LD | 9 LD | 10 LD | 11 LD | 12 LD | 13 LD | 14 LD | 15 LD | 16 LD | 17 LD | 18 LD | 19 LD | 20 LD | 21 LD | 22 LD | 23 LD | 24 LD | 25 LD | 26 LD | 27 LD | 28 LD | 29 LD | 30 LD | 31 LD | 32 LD | 33 LD | 34 LD | 35 LD | 36 LD | 37 LD | 38 LD | 39 LD | 40 LD | 41 LD | 42 LD | 43 LD | 44 LD | 45 LD | 46 LD | 47 LD | 48 LD | 49 LD | 50 LD | 51 LD | 52 LD | 53 LD | 54 LD | 55 LD | 56 LD | 57 LD | 58 LD | 59 LD | 60 LD | 61 LD | 62 LD | 63 LD | 64 LD | 65 LD | 66 LD | 67 LD | 68 LD | 69 LD | 70 LD | 71 LD | 72 LD | 73 LD | 74 LD | 75 LD | 76 LD | 77 LD | 78 LD | 79 LD | 80 LD | 81 LD | 82 LD | 83 LD | 84 LD | 85 LD | 86 LD | 87 LD | 88 LD | 89 LD | 90 LD | 91 LD | 92 LD | 93 LD | 94 LD | 95 LD | 96 LD | 97 LD | 98 LD | 99 LD | 100 LD |
fathom | 210,193,569.55381 ftm | 420,387,139.10761 ftm | 630,580,708.66142 ftm | 840,774,278.21522 ftm | 1,050,967,847.769 ftm | 1,261,161,417.3228 ftm | 1,471,354,986.8766 ftm | 1,681,548,556.4304 ftm | 1,891,742,125.9843 ftm | 2,101,935,695.5381 ftm | 2,312,129,265.0919 ftm | 2,522,322,834.6457 ftm | 2,732,516,404.1995 ftm | 2,942,709,973.7533 ftm | 3,152,903,543.3071 ftm | 3,363,097,112.8609 ftm | 3,573,290,682.4147 ftm | 3,783,484,251.9685 ftm | 3,993,677,821.5223 ftm | 4,203,871,391.0761 ftm | 4,414,064,960.6299 ftm | 4,624,258,530.1837 ftm | 4,834,452,099.7375 ftm | 5,044,645,669.2913 ftm | 5,254,839,238.8451 ftm | 5,465,032,808.399 ftm | 5,675,226,377.9528 ftm | 5,885,419,947.5066 ftm | 6,095,613,517.0604 ftm | 6,305,807,086.6142 ftm | 6,516,000,656.168 ftm | 6,726,194,225.7218 ftm | 6,936,387,795.2756 ftm | 7,146,581,364.8294 ftm | 7,356,774,934.3832 ftm | 7,566,968,503.937 ftm | 7,777,162,073.4908 ftm | 7,987,355,643.0446 ftm | 8,197,549,212.5984 ftm | 8,407,742,782.1522 ftm | 8,617,936,351.706 ftm | 8,828,129,921.2598 ftm | 9,038,323,490.8136 ftm | 9,248,517,060.3675 ftm | 9,458,710,629.9213 ftm | 9,668,904,199.4751 ftm | 9,879,097,769.0289 ftm | 10,089,291,338.583 ftm | 10,299,484,908.136 ftm | 10,509,678,477.69 ftm | 10,719,872,047.244 ftm | 10,930,065,616.798 ftm | 11,140,259,186.352 ftm | 11,350,452,755.906 ftm | 11,560,646,325.459 ftm | 11,770,839,895.013 ftm | 11,981,033,464.567 ftm | 12,191,227,034.121 ftm | 12,401,420,603.675 ftm | 12,611,614,173.228 ftm | 12,821,807,742.782 ftm | 13,032,001,312.336 ftm | 13,242,194,881.89 ftm | 13,452,388,451.444 ftm | 13,662,582,020.997 ftm | 13,872,775,590.551 ftm | 14,082,969,160.105 ftm | 14,293,162,729.659 ftm | 14,503,356,299.213 ftm | 14,713,549,868.766 ftm | 14,923,743,438.32 ftm | 15,133,937,007.874 ftm | 15,344,130,577.428 ftm | 15,554,324,146.982 ftm | 15,764,517,716.535 ftm | 15,974,711,286.089 ftm | 16,184,904,855.643 ftm | 16,395,098,425.197 ftm | 16,605,291,994.751 ftm | 16,815,485,564.304 ftm | 17,025,679,133.858 ftm | 17,235,872,703.412 ftm | 17,446,066,272.966 ftm | 17,656,259,842.52 ftm | 17,866,453,412.073 ftm | 18,076,646,981.627 ftm | 18,286,840,551.181 ftm | 18,497,034,120.735 ftm | 18,707,227,690.289 ftm | 18,917,421,259.843 ftm | 19,127,614,829.396 ftm | 19,337,808,398.95 ftm | 19,548,001,968.504 ftm | 19,758,195,538.058 ftm | 19,968,389,107.612 ftm | 20,178,582,677.165 ftm | 20,388,776,246.719 ftm | 20,598,969,816.273 ftm | 20,809,163,385.827 ftm | 21,019,356,955.381 ftm |
Lunar distance (LD), also called Earth–Moon distance, Earth–Moon characteristic distance, or distance to the Moon, is as a unit of measure in astronomy. It is the average distance from the center of Earth to the center of the Moon.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
lunar distance | LD | ≈ 384402 km | ≈ 384 402 000 m | Science - Astronomy (Length) |
lunar distance | fathoms | lunar distance | fathoms |
---|---|---|---|
1 | ≈ 210193569.55381 | 4 | ≈ 840774278.21522 |
1.5 | ≈ 315290354.33071 | 4.5 | ≈ 945871062.99213 |
2 | ≈ 420387139.10761 | 5 | ≈ 1050967847.769 |
2.5 | ≈ 525483923.88451 | 5.5 | ≈ 1156064632.5459 |
3 | ≈ 630580708.66142 | 6 | ≈ 1261161417.3228 |
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water.
There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fathom | ftm | ≡ 6 ft | = 1.8288 m | Imperial/US |
fathoms | lunar distance | fathoms | lunar distance |
---|---|---|---|
1 | ≈ 4.757519471803E-9 | 4 | ≈ 1.9030077887212E-8 |
1.5 | ≈ 7.1362792077044E-9 | 4.5 | ≈ 2.1408837623113E-8 |
2 | ≈ 9.5150389436059E-9 | 5 | ≈ 2.3787597359015E-8 |
2.5 | ≈ 1.1893798679507E-8 | 5.5 | ≈ 2.6166357094916E-8 |
3 | ≈ 1.4272558415409E-8 | 6 | ≈ 2.8545116830818E-8 |
lunar distance | fathoms |
---|---|
1 | ≈ 210,193,569.55381 |
4.757519471803 × 10-9 | ≈ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |