hubble length | 1 hubble length | 2 hubble length | 3 hubble length | 4 hubble length | 5 hubble length | 6 hubble length | 7 hubble length | 8 hubble length | 9 hubble length | 10 hubble length | 11 hubble length | 12 hubble length | 13 hubble length | 14 hubble length | 15 hubble length | 16 hubble length | 17 hubble length | 18 hubble length | 19 hubble length | 20 hubble length | 21 hubble length | 22 hubble length | 23 hubble length | 24 hubble length | 25 hubble length | 26 hubble length | 27 hubble length | 28 hubble length | 29 hubble length | 30 hubble length | 31 hubble length | 32 hubble length | 33 hubble length | 34 hubble length | 35 hubble length | 36 hubble length | 37 hubble length | 38 hubble length | 39 hubble length | 40 hubble length | 41 hubble length | 42 hubble length | 43 hubble length | 44 hubble length | 45 hubble length | 46 hubble length | 47 hubble length | 48 hubble length | 49 hubble length | 50 hubble length | 51 hubble length | 52 hubble length | 53 hubble length | 54 hubble length | 55 hubble length | 56 hubble length | 57 hubble length | 58 hubble length | 59 hubble length | 60 hubble length | 61 hubble length | 62 hubble length | 63 hubble length | 64 hubble length | 65 hubble length | 66 hubble length | 67 hubble length | 68 hubble length | 69 hubble length | 70 hubble length | 71 hubble length | 72 hubble length | 73 hubble length | 74 hubble length | 75 hubble length | 76 hubble length | 77 hubble length | 78 hubble length | 79 hubble length | 80 hubble length | 81 hubble length | 82 hubble length | 83 hubble length | 84 hubble length | 85 hubble length | 86 hubble length | 87 hubble length | 88 hubble length | 89 hubble length | 90 hubble length | 91 hubble length | 92 hubble length | 93 hubble length | 94 hubble length | 95 hubble length | 96 hubble length | 97 hubble length | 98 hubble length | 99 hubble length | 100 hubble length |
foot | 4.4695409786831 × 1026 ft | 8.9390819573661 × 1026 ft | 1.3408622936049 × 1027 ft | 1.7878163914732 × 1027 ft | 2.2347704893415 × 1027 ft | 2.6817245872098 × 1027 ft | 3.1286786850781 × 1027 ft | 3.5756327829465 × 1027 ft | 4.0225868808148 × 1027 ft | 4.4695409786831 × 1027 ft | 4.9164950765514 × 1027 ft | 5.3634491744197 × 1027 ft | 5.810403272288 × 1027 ft | 6.2573573701563 × 1027 ft | 6.7043114680246 × 1027 ft | 7.1512655658929 × 1027 ft | 7.5982196637612 × 1027 ft | 8.0451737616295 × 1027 ft | 8.4921278594978 × 1027 ft | 8.9390819573661 × 1027 ft | 9.3860360552344 × 1027 ft | 9.8329901531028 × 1027 ft | 1.0279944250971 × 1028 ft | 1.0726898348839 × 1028 ft | 1.1173852446708 × 1028 ft | 1.1620806544576 × 1028 ft | 1.2067760642444 × 1028 ft | 1.2514714740313 × 1028 ft | 1.2961668838181 × 1028 ft | 1.3408622936049 × 1028 ft | 1.3855577033918 × 1028 ft | 1.4302531131786 × 1028 ft | 1.4749485229654 × 1028 ft | 1.5196439327522 × 1028 ft | 1.5643393425391 × 1028 ft | 1.6090347523259 × 1028 ft | 1.6537301621127 × 1028 ft | 1.6984255718996 × 1028 ft | 1.7431209816864 × 1028 ft | 1.7878163914732 × 1028 ft | 1.8325118012601 × 1028 ft | 1.8772072110469 × 1028 ft | 1.9219026208337 × 1028 ft | 1.9665980306206 × 1028 ft | 2.0112934404074 × 1028 ft | 2.0559888501942 × 1028 ft | 2.100684259981 × 1028 ft | 2.1453796697679 × 1028 ft | 2.1900750795547 × 1028 ft | 2.2347704893415 × 1028 ft | 2.2794658991284 × 1028 ft | 2.3241613089152 × 1028 ft | 2.368856718702 × 1028 ft | 2.4135521284889 × 1028 ft | 2.4582475382757 × 1028 ft | 2.5029429480625 × 1028 ft | 2.5476383578494 × 1028 ft | 2.5923337676362 × 1028 ft | 2.637029177423 × 1028 ft | 2.6817245872098 × 1028 ft | 2.7264199969967 × 1028 ft | 2.7711154067835 × 1028 ft | 2.8158108165703 × 1028 ft | 2.8605062263572 × 1028 ft | 2.905201636144 × 1028 ft | 2.9498970459308 × 1028 ft | 2.9945924557177 × 1028 ft | 3.0392878655045 × 1028 ft | 3.0839832752913 × 1028 ft | 3.1286786850781 × 1028 ft | 3.173374094865 × 1028 ft | 3.2180695046518 × 1028 ft | 3.2627649144386 × 1028 ft | 3.3074603242255 × 1028 ft | 3.3521557340123 × 1028 ft | 3.3968511437991 × 1028 ft | 3.441546553586 × 1028 ft | 3.4862419633728 × 1028 ft | 3.5309373731596 × 1028 ft | 3.5756327829465 × 1028 ft | 3.6203281927333 × 1028 ft | 3.6650236025201 × 1028 ft | 3.7097190123069 × 1028 ft | 3.7544144220938 × 1028 ft | 3.7991098318806 × 1028 ft | 3.8438052416674 × 1028 ft | 3.8885006514543 × 1028 ft | 3.9331960612411 × 1028 ft | 3.9778914710279 × 1028 ft | 4.0225868808148 × 1028 ft | 4.0672822906016 × 1028 ft | 4.1119777003884 × 1028 ft | 4.1566731101753 × 1028 ft | 4.2013685199621 × 1028 ft | 4.2460639297489 × 1028 ft | 4.2907593395357 × 1028 ft | 4.3354547493226 × 1028 ft | 4.3801501591094 × 1028 ft | 4.4248455688962 × 1028 ft | 4.4695409786831 × 1028 ft |
The Hubble length or Hubble distance is a unit of distance in cosmology, defined as cH0−1 — the speed of light multiplied by the Hubble time. It is equivalent to 4,550 million parsecs or 14.4 billion light years. (The numerical value of the Hubble length in light years is, by definition, equal to that of the Hubble time in years.) The Hubble distance would be the distance between the Earth and the galaxies which are currently receding from us at the speed of light, as can be seen by substituting D = c/H0 into the equation for Hubble's law, v = H0D.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hubble length | ≈ 14.4 billion light-years ≈ 4.55 gigaparsecs | ≈ 1.3623160903026E+26 m | Science - Astronomy (Length) |
Hubble length | feet | Hubble length | feet |
---|---|---|---|
1 | ≈ 4.4695409786831E+26 | 4 | ≈ 1.7878163914732E+27 |
1.5 | ≈ 6.7043114680246E+26 | 4.5 | ≈ 2.0112934404074E+27 |
2 | ≈ 8.9390819573661E+26 | 5 | ≈ 2.2347704893415E+27 |
2.5 | ≈ 1.1173852446708E+27 | 5.5 | ≈ 2.4582475382757E+27 |
3 | ≈ 1.3408622936049E+27 | 6 | ≈ 2.6817245872098E+27 |
The foot (pl. feet; abbreviation: ft; symbol: ′, the prime symbol) is a unit of length in the imperial and US customary systems of measurement. Since 1959, both units have been defined by international agreement as equivalent to 0.3048 meters exactly. In both systems, the foot comprises 12 inches and three feet compose a yard.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot | ft | ≡ 0.3048 m ≡ 1⁄3 yd ≡ 12 inches | ≡ 0.3048 m | Imperial/US |
feet | Hubble length | feet | Hubble length |
---|---|---|---|
1 | ≈ 2.2373662189683E-27 | 4 | ≈ 8.9494648758732E-27 |
1.5 | ≈ 3.3560493284524E-27 | 4.5 | ≈ 1.0068147985357E-26 |
2 | ≈ 4.4747324379366E-27 | 5 | ≈ 1.1186831094841E-26 |
2.5 | ≈ 5.5934155474207E-27 | 5.5 | ≈ 1.2305514204326E-26 |
3 | ≈ 6.7120986569049E-27 | 6 | ≈ 1.342419731381E-26 |
Hubble length | feet |
---|---|
1 | ≈ 4.4695409786831 × 1026 |
2.2373662189683 × 10-27 | ≈ 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 …) |