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 |
league (land) | 2.8216986128886 × 1022 lea | 5.6433972257771 × 1022 lea | 8.4650958386657 × 1022 lea | 1.1286794451554 × 1023 lea | 1.4108493064443 × 1023 lea | 1.6930191677331 × 1023 lea | 1.975189029022 × 1023 lea | 2.2573588903109 × 1023 lea | 2.5395287515997 × 1023 lea | 2.8216986128886 × 1023 lea | 3.1038684741774 × 1023 lea | 3.3860383354663 × 1023 lea | 3.6682081967551 × 1023 lea | 3.950378058044 × 1023 lea | 4.2325479193328 × 1023 lea | 4.5147177806217 × 1023 lea | 4.7968876419106 × 1023 lea | 5.0790575031994 × 1023 lea | 5.3612273644883 × 1023 lea | 5.6433972257771 × 1023 lea | 5.925567087066 × 1023 lea | 6.2077369483548 × 1023 lea | 6.4899068096437 × 1023 lea | 6.7720766709326 × 1023 lea | 7.0542465322214 × 1023 lea | 7.3364163935103 × 1023 lea | 7.6185862547991 × 1023 lea | 7.900756116088 × 1023 lea | 8.1829259773768 × 1023 lea | 8.4650958386657 × 1023 lea | 8.7472656999546 × 1023 lea | 9.0294355612434 × 1023 lea | 9.3116054225323 × 1023 lea | 9.5937752838211 × 1023 lea | 9.87594514511 × 1023 lea | 1.0158115006399 × 1024 lea | 1.0440284867688 × 1024 lea | 1.0722454728977 × 1024 lea | 1.1004624590265 × 1024 lea | 1.1286794451554 × 1024 lea | 1.1568964312843 × 1024 lea | 1.1851134174132 × 1024 lea | 1.2133304035421 × 1024 lea | 1.241547389671 × 1024 lea | 1.2697643757999 × 1024 lea | 1.2979813619287 × 1024 lea | 1.3261983480576 × 1024 lea | 1.3544153341865 × 1024 lea | 1.3826323203154 × 1024 lea | 1.4108493064443 × 1024 lea | 1.4390662925732 × 1024 lea | 1.4672832787021 × 1024 lea | 1.4955002648309 × 1024 lea | 1.5237172509598 × 1024 lea | 1.5519342370887 × 1024 lea | 1.5801512232176 × 1024 lea | 1.6083682093465 × 1024 lea | 1.6365851954754 × 1024 lea | 1.6648021816043 × 1024 lea | 1.6930191677331 × 1024 lea | 1.721236153862 × 1024 lea | 1.7494531399909 × 1024 lea | 1.7776701261198 × 1024 lea | 1.8058871122487 × 1024 lea | 1.8341040983776 × 1024 lea | 1.8623210845065 × 1024 lea | 1.8905380706353 × 1024 lea | 1.9187550567642 × 1024 lea | 1.9469720428931 × 1024 lea | 1.975189029022 × 1024 lea | 2.0034060151509 × 1024 lea | 2.0316230012798 × 1024 lea | 2.0598399874087 × 1024 lea | 2.0880569735375 × 1024 lea | 2.1162739596664 × 1024 lea | 2.1444909457953 × 1024 lea | 2.1727079319242 × 1024 lea | 2.2009249180531 × 1024 lea | 2.229141904182 × 1024 lea | 2.2573588903109 × 1024 lea | 2.2855758764397 × 1024 lea | 2.3137928625686 × 1024 lea | 2.3420098486975 × 1024 lea | 2.3702268348264 × 1024 lea | 2.3984438209553 × 1024 lea | 2.4266608070842 × 1024 lea | 2.4548777932131 × 1024 lea | 2.4830947793419 × 1024 lea | 2.5113117654708 × 1024 lea | 2.5395287515997 × 1024 lea | 2.5677457377286 × 1024 lea | 2.5959627238575 × 1024 lea | 2.6241797099864 × 1024 lea | 2.6523966961153 × 1024 lea | 2.6806136822441 × 1024 lea | 2.708830668373 × 1024 lea | 2.7370476545019 × 1024 lea | 2.7652646406308 × 1024 lea | 2.7934816267597 × 1024 lea | 2.8216986128886 × 1024 lea |
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 | leagues (land) | Hubble length | leagues (land) |
---|---|---|---|
1 | ≈ 2.8216986128886E+22 | 4 | ≈ 1.1286794451554E+23 |
1.5 | ≈ 4.2325479193328E+22 | 4.5 | ≈ 1.2697643757999E+23 |
2 | ≈ 5.6433972257771E+22 | 5 | ≈ 1.4108493064443E+23 |
2.5 | ≈ 7.0542465322214E+22 | 5.5 | ≈ 1.5519342370887E+23 |
3 | ≈ 8.4650958386657E+22 | 6 | ≈ 1.6930191677331E+23 |
A league is a unit of length (or, in various regions, area). It was common in Europe and Latin America, but is no longer an official unit in any nation. The word originally meant the distance a person could walk in an hour. Since the Middle Ages, many values have been specified in several countries.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
league (land) | lea | ≈ 1 hour walk, Currently defined in US as 3 Statute miles, but historically varied from 2 to 9 km | ≈ 4828 m | Imperial/US |
leagues (land) | Hubble length | leagues (land) | Hubble length |
---|---|---|---|
1 | ≈ 3.5439646014367E-23 | 4 | ≈ 1.4175858405747E-22 |
1.5 | ≈ 5.315946902155E-23 | 4.5 | ≈ 1.5947840706465E-22 |
2 | ≈ 7.0879292028733E-23 | 5 | ≈ 1.7719823007183E-22 |
2.5 | ≈ 8.8599115035916E-23 | 5.5 | ≈ 1.9491805307902E-22 |
3 | ≈ 1.063189380431E-22 | 6 | ≈ 2.126378760862E-22 |
Hubble length | leagues (land) |
---|---|
1 | ≈ 2.8216986128886 × 1022 |
3.5439646014367 × 10-23 | ≈ 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 …) |