earth radius | 1 R⊕ | 2 R⊕ | 3 R⊕ | 4 R⊕ | 5 R⊕ | 6 R⊕ | 7 R⊕ | 8 R⊕ | 9 R⊕ | 10 R⊕ | 11 R⊕ | 12 R⊕ | 13 R⊕ | 14 R⊕ | 15 R⊕ | 16 R⊕ | 17 R⊕ | 18 R⊕ | 19 R⊕ | 20 R⊕ | 21 R⊕ | 22 R⊕ | 23 R⊕ | 24 R⊕ | 25 R⊕ | 26 R⊕ | 27 R⊕ | 28 R⊕ | 29 R⊕ | 30 R⊕ | 31 R⊕ | 32 R⊕ | 33 R⊕ | 34 R⊕ | 35 R⊕ | 36 R⊕ | 37 R⊕ | 38 R⊕ | 39 R⊕ | 40 R⊕ | 41 R⊕ | 42 R⊕ | 43 R⊕ | 44 R⊕ | 45 R⊕ | 46 R⊕ | 47 R⊕ | 48 R⊕ | 49 R⊕ | 50 R⊕ | 51 R⊕ | 52 R⊕ | 53 R⊕ | 54 R⊕ | 55 R⊕ | 56 R⊕ | 57 R⊕ | 58 R⊕ | 59 R⊕ | 60 R⊕ | 61 R⊕ | 62 R⊕ | 63 R⊕ | 64 R⊕ | 65 R⊕ | 66 R⊕ | 67 R⊕ | 68 R⊕ | 69 R⊕ | 70 R⊕ | 71 R⊕ | 72 R⊕ | 73 R⊕ | 74 R⊕ | 75 R⊕ | 76 R⊕ | 77 R⊕ | 78 R⊕ | 79 R⊕ | 80 R⊕ | 81 R⊕ | 82 R⊕ | 83 R⊕ | 84 R⊕ | 85 R⊕ | 86 R⊕ | 87 R⊕ | 88 R⊕ | 89 R⊕ | 90 R⊕ | 91 R⊕ | 92 R⊕ | 93 R⊕ | 94 R⊕ | 95 R⊕ | 96 R⊕ | 97 R⊕ | 98 R⊕ | 99 R⊕ | 100 R⊕ |
lunar distance | 0.0165738 LD | 0.0331476 LD | 0.0497214 LD | 0.0662952 LD | 0.0828690 LD | 0.0994428 LD | 0.1160166 LD | 0.1325904 LD | 0.1491642 LD | 0.1657380 LD | 0.1823117 LD | 0.1988855 LD | 0.2154593 LD | 0.2320331 LD | 0.2486069 LD | 0.2651807 LD | 0.2817545 LD | 0.2983283 LD | 0.3149021 LD | 0.3314759 LD | 0.3480497 LD | 0.3646235 LD | 0.3811973 LD | 0.3977711 LD | 0.4143449 LD | 0.4309187 LD | 0.4474925 LD | 0.4640663 LD | 0.4806401 LD | 0.4972139 LD | 0.5137876 LD | 0.5303614 LD | 0.5469352 LD | 0.5635090 LD | 0.5800828 LD | 0.5966566 LD | 0.6132304 LD | 0.6298042 LD | 0.6463780 LD | 0.6629518 LD | 0.6795256 LD | 0.6960994 LD | 0.7126732 LD | 0.7292470 LD | 0.7458208 LD | 0.7623946 LD | 0.7789684 LD | 0.7955422 LD | 0.8121160 LD | 0.8286898 LD | 0.8452636 LD | 0.8618373 LD | 0.8784111 LD | 0.8949849 LD | 0.9115587 LD | 0.9281325 LD | 0.9447063 LD | 0.9612801 LD | 0.9778539 LD | 0.9944277 LD | 1.0110015 LD | 1.0275753 LD | 1.0441491 LD | 1.0607229 LD | 1.0772967 LD | 1.0938705 LD | 1.1104443 LD | 1.1270181 LD | 1.1435919 LD | 1.1601657 LD | 1.1767395 LD | 1.1933133 LD | 1.2098870 LD | 1.2264608 LD | 1.2430346 LD | 1.2596084 LD | 1.2761822 LD | 1.2927560 LD | 1.3093298 LD | 1.3259036 LD | 1.3424774 LD | 1.3590512 LD | 1.3756250 LD | 1.3921988 LD | 1.4087726 LD | 1.4253464 LD | 1.4419202 LD | 1.4584940 LD | 1.4750678 LD | 1.4916416 LD | 1.5082154 LD | 1.5247892 LD | 1.5413629 LD | 1.5579367 LD | 1.5745105 LD | 1.5910843 LD | 1.6076581 LD | 1.6242319 LD | 1.6408057 LD | 1.6573795 LD |
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in astronomy and geology, where it is usually denoted by R⊕.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
earth radius | R⊕ | ≈ 6,371 km | ≈ 6,371 km | Science - Astronomy (Length) |
earth radius | lunar distance | earth radius | lunar distance |
---|---|---|---|
1 | ≈ 0.016573795141545 | 4 | ≈ 0.066295180566178 |
1.5 | ≈ 0.024860692712317 | 4.5 | ≈ 0.07458207813695 |
2 | ≈ 0.033147590283089 | 5 | ≈ 0.082868975707723 |
2.5 | ≈ 0.041434487853861 | 5.5 | ≈ 0.091155873278495 |
3 | ≈ 0.049721385424634 | 6 | ≈ 0.099442770849267 |
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 | earth radius | lunar distance | earth radius |
---|---|---|---|
1 | ≈ 60.336210955894 | 4 | ≈ 241.34484382358 |
1.5 | ≈ 90.504316433841 | 4.5 | ≈ 271.51294930152 |
2 | ≈ 120.67242191179 | 5 | ≈ 301.68105477947 |
2.5 | ≈ 150.84052738973 | 5.5 | ≈ 331.84916025742 |
3 | ≈ 181.00863286768 | 6 | ≈ 362.01726573536 |
earth radius | lunar distance |
---|---|
1 | ≈ 0.0165738 |
60.3362110 | ≈ 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 …) |