What are the different units used to measure distance?

Answer

In astronomy, there are usually 3 main units used to measure distance namely: light years, parsecs and kilometres. There is also the Astronomical Unit, AU, which is the average distance between the earth and the sun. A parsec is roughly 3.3 light years, and a light year is the distance covered by light in a vacuum in one earth year.
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com