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 |
hectometer | 1 495 978 707 hm | 2 991 957 414 hm | 4 487 936 121 hm | 5 983 914 828 hm | 7 479 893 535 hm | 8 975 872 242 hm | 10 471 850 949 hm | 11 967 829 656 hm | 13 463 808 363 hm | 14 959 787 070 hm | 16 455 765 777 hm | 17 951 744 484 hm | 19 447 723 191 hm | 20 943 701 898 hm | 22 439 680 605 hm | 23 935 659 312 hm | 25 431 638 019 hm | 26 927 616 726 hm | 28 423 595 433 hm | 29 919 574 140 hm | 31 415 552 847 hm | 32 911 531 554 hm | 34 407 510 261 hm | 35 903 488 968 hm | 37 399 467 675 hm | 38 895 446 382 hm | 40 391 425 089 hm | 41 887 403 796 hm | 43 383 382 503 hm | 44 879 361 210 hm | 46 375 339 917 hm | 47 871 318 624 hm | 49 367 297 331 hm | 50 863 276 038 hm | 52 359 254 745 hm | 53 855 233 452 hm | 55 351 212 159 hm | 56 847 190 866 hm | 58 343 169 573 hm | 59 839 148 280 hm | 61 335 126 987 hm | 62 831 105 694 hm | 64 327 084 401 hm | 65 823 063 108 hm | 67 319 041 815 hm | 68 815 020 522 hm | 70 310 999 229 hm | 71 806 977 936 hm | 73 302 956 643 hm | 74 798 935 350 hm | 76 294 914 057 hm | 77 790 892 764 hm | 79 286 871 471 hm | 80 782 850 178 hm | 82 278 828 885 hm | 83 774 807 592 hm | 85 270 786 299 hm | 86 766 765 006 hm | 88 262 743 713 hm | 89 758 722 420 hm | 91 254 701 127 hm | 92 750 679 834 hm | 94 246 658 541 hm | 95 742 637 248 hm | 97 238 615 955 hm | 98 734 594 662 hm | 100 230 573 369 hm | 101 726 552 076 hm | 103 222 530 783 hm | 104 718 509 490 hm | 106 214 488 197 hm | 107 710 466 904 hm | 109 206 445 611 hm | 110 702 424 318 hm | 112 198 403 025 hm | 113 694 381 732 hm | 115 190 360 439 hm | 116 686 339 146 hm | 118 182 317 853 hm | 119 678 296 560 hm | 121 174 275 267 hm | 122 670 253 974 hm | 124 166 232 681 hm | 125 662 211 388 hm | 127 158 190 095 hm | 128 654 168 802 hm | 130 150 147 509 hm | 131 646 126 216 hm | 133 142 104 923 hm | 134 638 083 630 hm | 136 134 062 337 hm | 137 630 041 044 hm | 139 126 019 751 hm | 140 621 998 458 hm | 142 117 977 165 hm | 143 613 955 872 hm | 145 109 934 579 hm | 146 605 913 286 hm | 148 101 891 993 hm | 149 597 870 700 hm |
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 | hectometers | astronomical units | hectometers |
---|---|---|---|
1 | ≡ 1495978707 | 4 | ≡ 5983914828 |
1.5 | ≡ 2243968060.5 | 4.5 | ≡ 6731904181.5 |
2 | ≡ 2991957414 | 5 | ≡ 7479893535 |
2.5 | ≡ 3739946767.5 | 5.5 | ≡ 8227882888.5 |
3 | ≡ 4487936121 | 6 | ≡ 8975872242 |
Hectometer or hectometre is a measurement of distance. It is equal to 100 meters. It is a uncommonly used unit of length in the metric system. Plural name is hectometers.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hectometer | hm | ≡ 1×102 m | ≡ 1×102 m | Metric system SI |
hectometers | astronomical units | hectometers | astronomical units |
---|---|---|---|
1 | ≡ 6.6845871222684E-10 | 4 | ≡ 2.6738348489074E-9 |
1.5 | ≡ 1.0026880683403E-9 | 4.5 | ≡ 3.0080642050208E-9 |
2 | ≡ 1.3369174244537E-9 | 5 | ≡ 3.3422935611342E-9 |
2.5 | ≡ 1.6711467805671E-9 | 5.5 | ≡ 3.6765229172476E-9 |
3 | ≡ 2.0053761366805E-9 | 6 | ≡ 4.0107522733611E-9 |
astronomical units | hectometers |
---|---|
1 | ≡ 1 495 978 707 |
6.6845871222684 × 10-10 | ≡ 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 …) |