Units for Distance and Size in the Universe Discipline: EducationAstronomers use many of the same units of measurement as other scientists. They often use meters for length, kilograms for mass, and seconds for time. However, the distances and sizes in the universe can be so big, that astronomers have invented more units to describe distance.Astronomical Units: Tags: astronomical unitslight yearparsecs
Finding Your Way Around the Sky Discipline: Education This guide describes systems astronomers use to find their way around the night sky and measure sizes and distances. You will find that the text contains many links. Some will take you to a glossary definition, while others are links to more information about a topic you may want to explore further. Please use this guide in the way that makes most sense to you. You may want to read the entire guide first, then go back and follow links that interest you, or you may want to follow links as you go along. You can also click on the diagrams to see them a larger size. Tags: constellationscelestial objectsastronomical unitslight yearparsecsequatorial coordinatessidereal time
