# Light week

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The light week is the distance that the light travels in vacuum in one week and so is a unit of distance.

Similar units are the light second, light minute, light hour, light day, light month, light year.

## Contents

### numerical value

As opposed to the light year, whose value more or less depends on the definition of year, the value of the light hour is defined exactly.

### Comparison to other Units

• 1 light week = 181,314,478,598.400 km = 1.8131448 * 1011 km
• 1 light week = 112,663,593,736.578 mi [2] = 1.1266359 * 1011 mi
• 1 light week = 594,863,774,929,133.858 ft[3] = 5.9486377 * 1014 ft
• 1 light week = 198,287,924,976,377.952 yd [4] = 1.9828611 * 1014 yd

### Distances in Light weeks

Unfortunately there are no distances in nature where it make sense to express them in light weeks. Distances in our solar system are normally expressed in light seconds up to light days. Distances in our galaxy are normally expressed in light years.

### Notes

1. Review of Particle Physics Particle Data Group: W.-M. Yao et al., J. Phys. G 33, 1 (2006).
2. 1 mi = 1609.344 m
3. 1 ft = 0.3048 m
4. 1 yd = 0.9144 m