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 |
chain | 6.7720183204847 × 1024 ch | 1.3544036640969 × 1025 ch | 2.0316054961454 × 1025 ch | 2.7088073281939 × 1025 ch | 3.3860091602424 × 1025 ch | 4.0632109922908 × 1025 ch | 4.7404128243393 × 1025 ch | 5.4176146563878 × 1025 ch | 6.0948164884363 × 1025 ch | 6.7720183204847 × 1025 ch | 7.4492201525332 × 1025 ch | 8.1264219845817 × 1025 ch | 8.8036238166301 × 1025 ch | 9.4808256486786 × 1025 ch | 1.0158027480727 × 1026 ch | 1.0835229312776 × 1026 ch | 1.1512431144824 × 1026 ch | 1.2189632976873 × 1026 ch | 1.2866834808921 × 1026 ch | 1.3544036640969 × 1026 ch | 1.4221238473018 × 1026 ch | 1.4898440305066 × 1026 ch | 1.5575642137115 × 1026 ch | 1.6252843969163 × 1026 ch | 1.6930045801212 × 1026 ch | 1.760724763326 × 1026 ch | 1.8284449465309 × 1026 ch | 1.8961651297357 × 1026 ch | 1.9638853129406 × 1026 ch | 2.0316054961454 × 1026 ch | 2.0993256793503 × 1026 ch | 2.1670458625551 × 1026 ch | 2.23476604576 × 1026 ch | 2.3024862289648 × 1026 ch | 2.3702064121697 × 1026 ch | 2.4379265953745 × 1026 ch | 2.5056467785793 × 1026 ch | 2.5733669617842 × 1026 ch | 2.641087144989 × 1026 ch | 2.7088073281939 × 1026 ch | 2.7765275113987 × 1026 ch | 2.8442476946036 × 1026 ch | 2.9119678778084 × 1026 ch | 2.9796880610133 × 1026 ch | 3.0474082442181 × 1026 ch | 3.115128427423 × 1026 ch | 3.1828486106278 × 1026 ch | 3.2505687938327 × 1026 ch | 3.3182889770375 × 1026 ch | 3.3860091602424 × 1026 ch | 3.4537293434472 × 1026 ch | 3.5214495266521 × 1026 ch | 3.5891697098569 × 1026 ch | 3.6568898930618 × 1026 ch | 3.7246100762666 × 1026 ch | 3.7923302594714 × 1026 ch | 3.8600504426763 × 1026 ch | 3.9277706258811 × 1026 ch | 3.995490809086 × 1026 ch | 4.0632109922908 × 1026 ch | 4.1309311754957 × 1026 ch | 4.1986513587005 × 1026 ch | 4.2663715419054 × 1026 ch | 4.3340917251102 × 1026 ch | 4.4018119083151 × 1026 ch | 4.4695320915199 × 1026 ch | 4.5372522747248 × 1026 ch | 4.6049724579296 × 1026 ch | 4.6726926411345 × 1026 ch | 4.7404128243393 × 1026 ch | 4.8081330075442 × 1026 ch | 4.875853190749 × 1026 ch | 4.9435733739539 × 1026 ch | 5.0112935571587 × 1026 ch | 5.0790137403635 × 1026 ch | 5.1467339235684 × 1026 ch | 5.2144541067732 × 1026 ch | 5.2821742899781 × 1026 ch | 5.3498944731829 × 1026 ch | 5.4176146563878 × 1026 ch | 5.4853348395926 × 1026 ch | 5.5530550227975 × 1026 ch | 5.6207752060023 × 1026 ch | 5.6884953892072 × 1026 ch | 5.756215572412 × 1026 ch | 5.8239357556169 × 1026 ch | 5.8916559388217 × 1026 ch | 5.9593761220266 × 1026 ch | 6.0270963052314 × 1026 ch | 6.0948164884363 × 1026 ch | 6.1625366716411 × 1026 ch | 6.2302568548459 × 1026 ch | 6.2979770380508 × 1026 ch | 6.3656972212556 × 1026 ch | 6.4334174044605 × 1026 ch | 6.5011375876653 × 1026 ch | 6.5688577708702 × 1026 ch | 6.636577954075 × 1026 ch | 6.7042981372799 × 1026 ch | 6.7720183204847 × 1026 ch |
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 | chains | Hubble length | chains |
---|---|---|---|
1 | ≈ 6.7720183204847E+24 | 4 | ≈ 2.7088073281939E+25 |
1.5 | ≈ 1.0158027480727E+25 | 4.5 | ≈ 3.0474082442181E+25 |
2 | ≈ 1.3544036640969E+25 | 5 | ≈ 3.3860091602424E+25 |
2.5 | ≈ 1.6930045801212E+25 | 5.5 | ≈ 3.7246100762666E+25 |
3 | ≈ 2.0316054961454E+25 | 6 | ≈ 4.0632109922908E+25 |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
chain | ch | ≡ 66 ft (US) ≡ 4 rods | ≈ 20.11684 m | Imperial/US |
chains | Hubble length | chains | Hubble length |
---|---|---|---|
1 | ≈ 1.4766646406952E-25 | 4 | ≈ 5.9066585627809E-25 |
1.5 | ≈ 2.2149969610428E-25 | 4.5 | ≈ 6.6449908831285E-25 |
2 | ≈ 2.9533292813904E-25 | 5 | ≈ 7.3833232034761E-25 |
2.5 | ≈ 3.691661601738E-25 | 5.5 | ≈ 8.1216555238237E-25 |
3 | ≈ 4.4299939220856E-25 | 6 | ≈ 8.8599878441713E-25 |
Hubble length | chains |
---|---|
1 | ≈ 6.7720183204847 × 1024 |
1.4766646406952 × 10-25 | ≈ 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 …) |