Saturday, October 13, 2007

What is 3.26 Light Years?


When interviewed by Nitin Raj of the International Reporter on some basic answers how the light year is calculated and what actually it is, Dr. Raj Baldev, a Cosmo Theorist from India, explained what 3.26 light years is:

Though the light-year is normally used to measure distances to stars, in astronomy in particular, the preferred unit of measurement for such distances is the parsec that  is defined as the distance at which an [astronomical] object generates one arcsecond of parallax when the observing object moved one Astronomical Unit  perpendicular to the line of sight to the observer [on the earth]. This calculation is equal to about 3.26 light-years.

So 3.26 light years can be referred to a parsec, or a distance of approximately 3.086×1016 m.

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