Requires a bachelor's degree in engineering and 4-6 years of experience in the field or in a related area. Familiar with a variety of the field's concepts, practices, and procedures. Relies on experience and judgment to plan and accomplish goals. Performs a variety of complicated tasks.
The Ring Nebula (also catalogued as Messier 57, M57 or NGC 6720) is a planetary nebula in the northern constellation of Lyra.
The Ring Nebula (M 57) is a <%= link_to 'planetary nebula', 'http://www.sun.org/encyclopedia/emission-nebula' %> about 2300 light years away from us. This is how it looks when a star blows its outer layers at the end ...