How many light-day in 1 decametre? The answer is 3.8606955462749E-13. We assume you are converting between light day and decametre. You can view more details on each measurement unit: light-day or decametre The SI base unit for length is the metre. 1 metre is equal to 3.8606955462749E-14 light-day, or 0.1 decametre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light days and decameters. Type in your own numbers in the form to convert the units!
1 light-day to decametre = 2590206837120 decametre
2 light-day to decametre = 5180413674240 decametre
3 light-day to decametre = 7770620511360 decametre
4 light-day to decametre = 10360827348480 decametre
5 light-day to decametre = 12951034185600 decametre
6 light-day to decametre = 15541241022720 decametre
7 light-day to decametre = 18131447859840 decametre
8 light-day to decametre = 20721654696960 decametre
9 light-day to decametre = 23311861534080 decametre
10 light-day to decametre = 25902068371200 decametre
You can do the reverse unit conversion from decametre to light-day, or enter any two units below:
A light day (also written light-day) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one day (of 86,400 seconds) or 25,902,068,371,200 metres (~26 Tm).
Note that this value is exact, since the metre is actually defined in terms of the speed of light. The light day isn't very frequently used at all since there are few astronomical objects or distances of that magnitude; the Oort cloud, for example, is thought to extend between 290 and 580 light-days out from the Sun.
A decametre (American spelling: dekameter, symbol: dam) is a measurement of distance equal to ten metres. This measure is included mostly for completeness. It very rarely has any practical application.
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