Star chart 3.0
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Credit Djexplo – Wikipedia CommonsĪ star map works in a similar fashion, but instead of latitude there’s declination and instead of longitude there’s right ascension. More specifically, latitude denotes how far north or south of the equator a location is, whereas longitude specifies how far east or west of Greenwich, England, a location is.Īn illustration of latitude and longitude on the Earth. Maps of the Earth use a coordinate system called latitude and longitude to record the precise location of a town, city or feature on the surface of the Earth. More than that, a chart of the night sky uses a grid reference system – similar to latitude and longitude on maps of the Earth – that can help you to easily locate and identify thousands of potential observing targets. Similarly, a terrestrial map will also show you the locations of lakes, mountains and volcanoes, while a celestial chart will also show you nebulae, star clusters and galaxies. Just as a map of the Earth will show you the different countries and cities, so a map of the sky will show you the constellations and their stars. What is a Star Chart or Star Map?Ī star chart is literally a map of the heavens.
#Star chart 3.0 how to
This article will cover the basics, explain how to read a star chart and how to get the most out of it. Learning how to read a star chart is as essential as learning how to operate your equipment, as without a star chart, you won’t know how to find your way around the sky. Or, possibly, you’re already a little familiar with the constellations and are looking to delve a little deeper. Have you ever stood underneath a clear, starry sky and not known what you were looking at? Maybe you already know the Big Dipper and would like to discover more. How Can You Find Objects on a Star Chart?.What is Right Ascension and Declination?.