Astronomer - Research Article from Macmillan Science Library: Space Sciences

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This section contains 585 words
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Two Types of Astronomers

In the early twenty-first century, astronomers can be grouped into two different types, observational and theoretical. Observational astronomers use telescopes, on Earth and in space, to study objects ranging from planets and moons to distant galaxies. They analyze images, spectra, and other data in an effort to gain new knowledge about the objects under examination.

Astronomers use many different tools, including telescopes, satellites, computers, and radio telescope dishes, to gather and study information on the universe. Astronomers use many different tools, including telescopes, satellites, computers, and radio telescope dishes, to gather and study information on the universe.
Theoretical astronomers, on the other hand, may never venture near a telescope. They work with computers, or even just pencil and paper, to develop models and theories to explain astronomical phenomena. In many respects observational astronomers are closer to the classical image of an astronomer, whereas theoretical astronomers are more strongly rooted in the worlds of physics and mathematics. The two groups do work closely together: Observational astronomers provide...

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This section contains 585 words
(approx. 2 pages at 300 words per page)
Buy the Astronomer Encyclopedia Article
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Macmillan Science Library: Space Sciences
Astronomer from Macmillan Science Library: Space Sciences. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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