Are interstellar gas clouds. Types of nebulae include, emission nebulae, planetary nebulae, reflection nebulae, supernova remnants and dark nebulae.

M42 The Great Orion Nebula is a spectacular emission nebula visible with the naked eye (credit:- NASA, ESA, M. Robberto, Space Telescope Science Institute)

Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Sky Highlights - April 2017

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Current Moon Phase



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