light-hour | 1 light-hour | 2 light-hour | 3 light-hour | 4 light-hour | 5 light-hour | 6 light-hour | 7 light-hour | 8 light-hour | 9 light-hour | 10 light-hour | 11 light-hour | 12 light-hour | 13 light-hour | 14 light-hour | 15 light-hour | 16 light-hour | 17 light-hour | 18 light-hour | 19 light-hour | 20 light-hour | 21 light-hour | 22 light-hour | 23 light-hour | 24 light-hour | 25 light-hour | 26 light-hour | 27 light-hour | 28 light-hour | 29 light-hour | 30 light-hour | 31 light-hour | 32 light-hour | 33 light-hour | 34 light-hour | 35 light-hour | 36 light-hour | 37 light-hour | 38 light-hour | 39 light-hour | 40 light-hour | 41 light-hour | 42 light-hour | 43 light-hour | 44 light-hour | 45 light-hour | 46 light-hour | 47 light-hour | 48 light-hour | 49 light-hour | 50 light-hour | 51 light-hour | 52 light-hour | 53 light-hour | 54 light-hour | 55 light-hour | 56 light-hour | 57 light-hour | 58 light-hour | 59 light-hour | 60 light-hour | 61 light-hour | 62 light-hour | 63 light-hour | 64 light-hour | 65 light-hour | 66 light-hour | 67 light-hour | 68 light-hour | 69 light-hour | 70 light-hour | 71 light-hour | 72 light-hour | 73 light-hour | 74 light-hour | 75 light-hour | 76 light-hour | 77 light-hour | 78 light-hour | 79 light-hour | 80 light-hour | 81 light-hour | 82 light-hour | 83 light-hour | 84 light-hour | 85 light-hour | 86 light-hour | 87 light-hour | 88 light-hour | 89 light-hour | 90 light-hour | 91 light-hour | 92 light-hour | 93 light-hour | 94 light-hour | 95 light-hour | 96 light-hour | 97 light-hour | 98 light-hour | 99 light-hour | 100 light-hour |
point (typography) | 3.0707718174312 × 1015 pt | 6.1415436348624 × 1015 pt | 9.2123154522935 × 1015 pt | 1.2283087269725 × 1016 pt | 1.5353859087156 × 1016 pt | 1.8424630904587 × 1016 pt | 2.1495402722018 × 1016 pt | 2.4566174539449 × 1016 pt | 2.7636946356881 × 1016 pt | 3.0707718174312 × 1016 pt | 3.3778489991743 × 1016 pt | 3.6849261809174 × 1016 pt | 3.9920033626605 × 1016 pt | 4.2990805444037 × 1016 pt | 4.6061577261468 × 1016 pt | 4.9132349078899 × 1016 pt | 5.220312089633 × 1016 pt | 5.5273892713761 × 1016 pt | 5.8344664531192 × 1016 pt | 6.1415436348624 × 1016 pt | 6.4486208166055 × 1016 pt | 6.7556979983486 × 1016 pt | 7.0627751800917 × 1016 pt | 7.3698523618348 × 1016 pt | 7.676929543578 × 1016 pt | 7.9840067253211 × 1016 pt | 8.2910839070642 × 1016 pt | 8.5981610888073 × 1016 pt | 8.9052382705504 × 1016 pt | 9.2123154522935 × 1016 pt | 9.5193926340367 × 1016 pt | 9.8264698157798 × 1016 pt | 1.0133546997523 × 1017 pt | 1.0440624179266 × 1017 pt | 1.0747701361009 × 1017 pt | 1.1054778542752 × 1017 pt | 1.1361855724495 × 1017 pt | 1.1668932906238 × 1017 pt | 1.1976010087982 × 1017 pt | 1.2283087269725 × 1017 pt | 1.2590164451468 × 1017 pt | 1.2897241633211 × 1017 pt | 1.3204318814954 × 1017 pt | 1.3511395996697 × 1017 pt | 1.381847317844 × 1017 pt | 1.4125550360183 × 1017 pt | 1.4432627541927 × 1017 pt | 1.473970472367 × 1017 pt | 1.5046781905413 × 1017 pt | 1.5353859087156 × 1017 pt | 1.5660936268899 × 1017 pt | 1.5968013450642 × 1017 pt | 1.6275090632385 × 1017 pt | 1.6582167814128 × 1017 pt | 1.6889244995872 × 1017 pt | 1.7196322177615 × 1017 pt | 1.7503399359358 × 1017 pt | 1.7810476541101 × 1017 pt | 1.8117553722844 × 1017 pt | 1.8424630904587 × 1017 pt | 1.873170808633 × 1017 pt | 1.9038785268073 × 1017 pt | 1.9345862449816 × 1017 pt | 1.965293963156 × 1017 pt | 1.9960016813303 × 1017 pt | 2.0267093995046 × 1017 pt | 2.0574171176789 × 1017 pt | 2.0881248358532 × 1017 pt | 2.1188325540275 × 1017 pt | 2.1495402722018 × 1017 pt | 2.1802479903761 × 1017 pt | 2.2109557085505 × 1017 pt | 2.2416634267248 × 1017 pt | 2.2723711448991 × 1017 pt | 2.3030788630734 × 1017 pt | 2.3337865812477 × 1017 pt | 2.364494299422 × 1017 pt | 2.3952020175963 × 1017 pt | 2.4259097357706 × 1017 pt | 2.4566174539449 × 1017 pt | 2.4873251721193 × 1017 pt | 2.5180328902936 × 1017 pt | 2.5487406084679 × 1017 pt | 2.5794483266422 × 1017 pt | 2.6101560448165 × 1017 pt | 2.6408637629908 × 1017 pt | 2.6715714811651 × 1017 pt | 2.7022791993394 × 1017 pt | 2.7329869175138 × 1017 pt | 2.7636946356881 × 1017 pt | 2.7944023538624 × 1017 pt | 2.8251100720367 × 1017 pt | 2.855817790211 × 1017 pt | 2.8865255083853 × 1017 pt | 2.9172332265596 × 1017 pt | 2.9479409447339 × 1017 pt | 2.9786486629082 × 1017 pt | 3.0093563810826 × 1017 pt | 3.0400640992569 × 1017 pt | 3.0707718174312 × 1017 pt |
The light-hour is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in onehour, and is equal to exactly 1.0792528488×1012 metres.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-hour | ≡ 60 light-minutes | ≡ 1.0792528488×1012 m | Science - Astronomy (Length) |
light-hours | points (typography) | light-hours | points (typography) |
---|---|---|---|
1 | = 3.0707718174312E+15 | 4 | = 1.2283087269725E+16 |
1.5 | = 4.6061577261468E+15 | 4.5 | = 1.381847317844E+16 |
2 | = 6.1415436348624E+15 | 5 | = 1.5353859087156E+16 |
2.5 | = 7.676929543578E+15 | 5.5 | = 1.6889244995872E+16 |
3 | = 9.2123154522935E+15 | 6 | = 1.8424630904587E+16 |
≡ 1⁄72.27 in
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (typography) | pt | ≡ 1⁄72.27 in | = 0.0003514598 m | Other (Length) |
points (typography) | light-hours | points (typography) | light-hours |
---|---|---|---|
1 | = 3.2565102829312E-16 | 4 | = 1.3026041131725E-15 |
1.5 | = 4.8847654243968E-16 | 4.5 | = 1.465429627319E-15 |
2 | = 6.5130205658624E-16 | 5 | = 1.6282551414656E-15 |
2.5 | = 8.141275707328E-16 | 5.5 | = 1.7910806556122E-15 |
3 | = 9.7695308487936E-16 | 6 | = 1.9539061697587E-15 |
light-hours | points (typography) |
---|---|
1 | = 3.0707718174312 × 1015 |
3.2565102829312 × 10-16 | = 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 …) |