Web Results


... fractions of a light year, and are usually expressed in astronomical units. ... is also used occasionally for approximate measures.


A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second.


Feb 20, 2013 ... Hint: A light-year is a unit of distance, not time. ... A light-year is how astronomers measure distance in space. It's defined by how far a beam of ...


How Distances are Measured in Astronomy. Dealing with ... AU (astronomical units) ... The light year is is the distance that light travel in one year (365 1/4 days) .


The original article was at Light-year. The list of authors can be seen in the page history. As with the Units of Measurement Wiki, the text of Wikipedia is available ...


We don't directly measure distances to anything light years away by timing light. " Light year" is just a unit of distance like a mile or kilometer.


A light year is a way of measuring distance. That doesn't make much sense because "light year" contains the word "year," which is normally a unit of time.


In astronomy, the most commonly used measures of distance are the light year, parsec and astronomical unit. Astronomical Unit (A.U.) An astronomical unit ...


Aug 19, 2013 ... The starting point is the Astronomical Unit, often abbreviated to AU. ... The light- year is a more comprehensible measure of distance than the ...


A Light-year is a unit of distance. It is defined as the distance light travels in one year. ... Lightyear is basically a distance/ displacement used in measuring seperation between two planets , solar systems, stars and galaxies in ...