Requires a bachelor's degree in engineering and 2-5 years of experience in the field or in a related area. Familiar with standard concepts, practices, and procedures within a particular field. Relies on experience and judgment to plan and accomplish goals. Performs a variety of tasks.
The Ring Nebula is about 2,000 light-years from Earth and measures roughly 1 light-year across. Located in the constellation Lyra, the nebula is a popular target for amateur astronomers. Previous observations by several telescopes had detected the gaseous material in the ring's central region. But the new view by Hubble's sharp-eyed Wide Field Camera 3 shows the nebula's structure in more detail.
Working outward from the planet, the rings are: D, C, B, A, F, G, E. The large division between rings B and A is called the Cassini Division after the astronomer who discovered both the gap and four of Saturn's moons. D, C, B, and A are the major ring groups; F, G, and E are fainter, narrower rings.