astronomical unit | 1 AU | 2 AU | 3 AU | 4 AU | 5 AU | 6 AU | 7 AU | 8 AU | 9 AU | 10 AU | 11 AU | 12 AU | 13 AU | 14 AU | 15 AU | 16 AU | 17 AU | 18 AU | 19 AU | 20 AU | 21 AU | 22 AU | 23 AU | 24 AU | 25 AU | 26 AU | 27 AU | 28 AU | 29 AU | 30 AU | 31 AU | 32 AU | 33 AU | 34 AU | 35 AU | 36 AU | 37 AU | 38 AU | 39 AU | 40 AU | 41 AU | 42 AU | 43 AU | 44 AU | 45 AU | 46 AU | 47 AU | 48 AU | 49 AU | 50 AU | 51 AU | 52 AU | 53 AU | 54 AU | 55 AU | 56 AU | 57 AU | 58 AU | 59 AU | 60 AU | 61 AU | 62 AU | 63 AU | 64 AU | 65 AU | 66 AU | 67 AU | 68 AU | 69 AU | 70 AU | 71 AU | 72 AU | 73 AU | 74 AU | 75 AU | 76 AU | 77 AU | 78 AU | 79 AU | 80 AU | 81 AU | 82 AU | 83 AU | 84 AU | 85 AU | 86 AU | 87 AU | 88 AU | 89 AU | 90 AU | 91 AU | 92 AU | 93 AU | 94 AU | 95 AU | 96 AU | 97 AU | 98 AU | 99 AU | 100 AU |
decameter | 14 959 787 070 dam | 29 919 574 140 dam | 44 879 361 210 dam | 59 839 148 280 dam | 74 798 935 350 dam | 89 758 722 420 dam | 104 718 509 490 dam | 119 678 296 560 dam | 134 638 083 630 dam | 149 597 870 700 dam | 164 557 657 770 dam | 179 517 444 840 dam | 194 477 231 910 dam | 209 437 018 980 dam | 224 396 806 050 dam | 239 356 593 120 dam | 254 316 380 190 dam | 269 276 167 260 dam | 284 235 954 330 dam | 299 195 741 400 dam | 314 155 528 470 dam | 329 115 315 540 dam | 344 075 102 610 dam | 359 034 889 680 dam | 373 994 676 750 dam | 388 954 463 820 dam | 403 914 250 890 dam | 418 874 037 960 dam | 433 833 825 030 dam | 448 793 612 100 dam | 463 753 399 170 dam | 478 713 186 240 dam | 493 672 973 310 dam | 508 632 760 380 dam | 523 592 547 450 dam | 538 552 334 520 dam | 553 512 121 590 dam | 568 471 908 660 dam | 583 431 695 730 dam | 598 391 482 800 dam | 613 351 269 870 dam | 628 311 056 940 dam | 643 270 844 010 dam | 658 230 631 080 dam | 673 190 418 150 dam | 688 150 205 220 dam | 703 109 992 290 dam | 718 069 779 360 dam | 733 029 566 430 dam | 747 989 353 500 dam | 762 949 140 570 dam | 777 908 927 640 dam | 792 868 714 710 dam | 807 828 501 780 dam | 822 788 288 850 dam | 837 748 075 920 dam | 852 707 862 990 dam | 867 667 650 060 dam | 882 627 437 130 dam | 897 587 224 200 dam | 912 547 011 270 dam | 927 506 798 340 dam | 942 466 585 410 dam | 957 426 372 480 dam | 972 386 159 550 dam | 987 345 946 620 dam | 1 002 305 733 690 dam | 1 017 265 520 760 dam | 1 032 225 307 830 dam | 1 047 185 094 900 dam | 1 062 144 881 970 dam | 1 077 104 669 040 dam | 1 092 064 456 110 dam | 1 107 024 243 180 dam | 1 121 984 030 250 dam | 1 136 943 817 320 dam | 1 151 903 604 390 dam | 1 166 863 391 460 dam | 1 181 823 178 530 dam | 1 196 782 965 600 dam | 1 211 742 752 670 dam | 1 226 702 539 740 dam | 1 241 662 326 810 dam | 1 256 622 113 880 dam | 1 271 581 900 950 dam | 1 286 541 688 020 dam | 1 301 501 475 090 dam | 1 316 461 262 160 dam | 1 331 421 049 230 dam | 1 346 380 836 300 dam | 1 361 340 623 370 dam | 1 376 300 410 440 dam | 1 391 260 197 510 dam | 1 406 219 984 580 dam | 1 421 179 771 650 dam | 1 436 139 558 720 dam | 1 451 099 345 790 dam | 1 466 059 132 860 dam | 1 481 018 919 930 dam | 1 495 978 707 000 dam |
The astronomical unit (symbol: au or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 149 597 870 700 metres (about 150 million kilometres, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
astronomical unit | AU | ≡ 149 597 870 700 m ≈ Distance from Earth to Sun | ≡ 149 597 870 700 m | Science - Astronomy (Length) |
astronomical units | decameters | astronomical units | decameters |
---|---|---|---|
1 | ≡ 14959787070 | 4 | ≡ 59839148280 |
1.5 | ≡ 22439680605 | 4.5 | ≡ 67319041815 |
2 | ≡ 29919574140 | 5 | ≡ 74798935350 |
2.5 | ≡ 37399467675 | 5.5 | ≡ 82278828885 |
3 | ≡ 44879361210 | 6 | ≡ 89758722420 |
Dekameter or decameter is a common metric unit of distance. It is equal to 10 meters or 32.8084 feet. Plural name is dekameters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
decameter | dam | ≡ 1×10 m | ≡ 1×10 m | Metric system SI |
decameters | astronomical units | decameters | astronomical units |
---|---|---|---|
1 | ≡ 6.6845871222684E-11 | 4 | ≡ 2.6738348489074E-10 |
1.5 | ≡ 1.0026880683403E-10 | 4.5 | ≡ 3.0080642050208E-10 |
2 | ≡ 1.3369174244537E-10 | 5 | ≡ 3.3422935611342E-10 |
2.5 | ≡ 1.6711467805671E-10 | 5.5 | ≡ 3.6765229172476E-10 |
3 | ≡ 2.0053761366805E-10 | 6 | ≡ 4.0107522733611E-10 |
astronomical units | decameters |
---|---|
1 | ≡ 14 959 787 070 |
6.6845871222684 × 10-11 | ≡ 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 …) |