›› Convert light day to megalight year


light-day
megalight-year


›› More information from the unit converter

How many light-day in 1 megalight-year? The answer is 365000000.
We assume you are converting between light day and megalight year.
You can view more details on each measurement unit:
light-day or megalight-year
The SI base unit for length is the metre.
1 metre is equal to 3.8606955462749E-14 light-day, or 1.0577248071986E-22 megalight-year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light days and megalight years.
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›› Common length conversions

light-day to twip
light-day to pie
light-day to ch'ih
light-day to dong
light-day to league
light-day to femtometer
light-day to gnat's eye
light-day to ell
light-day to goad
light-day to chain


›› Definition: Light-day

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.


›› Definition: Megalight-year

One megalight-year, abbreviated "Mly", is one million light-years, or 306,601 parsecs. Megalight-years are typically used to measure distances between neighboring galaxies and galaxy clusters.


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