Light week: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Bruno L'Astorina
mNo edit summary
 
(One intermediate revision by one other user not shown)
Line 10: Line 10:
* [[velocity]] of [[light]] in [[vacuum]]: 299,792,458 m/s <ref>Review of Particle Physics
* [[velocity]] of [[light]] in [[vacuum]]: 299,792,458 m/s <ref>Review of Particle Physics
  [http://stacks.iop.org/JPhysG/33/1 Particle Data Group: W.-M. Yao ''et al.'', J. Phys. G 33, 1 (2006).]</ref> ([[meter]]s/[[second]])
  [http://stacks.iop.org/JPhysG/33/1 Particle Data Group: W.-M. Yao ''et al.'', J. Phys. G 33, 1 (2006).]</ref> ([[meter]]s/[[second]])
* 1 [[week] = 7 [[days]] = 168 [[hours]] = 10080 [[minutes]] = 604800 [[seconds]]
* 1 [[week]] = 7 [[days]] = 168 [[hours]] = 10080 [[minutes]] = 604800 [[seconds]]
* 1 light week = 181,314,478,598,400 m = 1.8131448 * 10<sup>14</sup>m
* 1 light week = 181,314,478,598,400 m = 1.8131448 * 10<sup>14</sup>m


Line 27: Line 27:


===Notes===
===Notes===
 
{{reflist}}[[Category:Suggestion Bot Tag]]
<div class="references-2column">
<references />
</div>
 
 
 
[[Category:CZ Live|Light week]]
[[Category:Astronomy Workgroup|Light week]]

Latest revision as of 06:00, 12 September 2024

This article is developed but not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
This editable, developed Main Article is subject to a disclaimer.

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.

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