Astronomy today by Isaac Asimov

By Isaac Asimov

How do astronomers do their paintings at the present time? during this publication, Isaac Asimov deals an up to date account of stargazing this day, from the most recent technological advances in house telescopes, pcs, and radio telescopes to the easy act of looking at skyward on a starry evening with binoculars and pencil and paper in hand. here's a attention-grabbing array of astronomers’ equipment, apparatus, and ideas.

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Joe Schabram. 1987; p. 22 (insets), official US Navy photographs: p. 24. courtesy of the National Academy of Sciences: p. 26. £ The University of Texas McDonald Observatory; p. 29. photograph by Matthew Groshek. £ Gareth Stevens. Inc.. 1989. Institute of Technology: 9 (bottom). Libraries: p. 32 p. E A Panoramic Introduction to Space in 33 Magnificently Illustrated Science Information and Picture Books Includes an Index Volume. — a universe of facts, pictures, and other special Stunning An • A index "Fact File" full-color artwork and a glossary space and features: and photography of key terms scientific fact and concepts reference section Special "Amazing Facts" and "Unexplained Mysteries" feature sections Exciting and informative discussions of space facts and theories in prose accessible to young readers Names of planetariums, museums, and other places where more about space and astronomy children can learn Astronomy Today How work today?

8 (background). 10 (top inset), courtesy of Jet Propulsion Laboratory: p. 4 (large). E Greg Mort. 1984: p. 5 (bottom), courtesy of Wyoming Travel Commission: p. 5 (inset), from the collection of George G. Young: p. 6 (background). E Earl L. Kubis Tom Stack and Associates: p. 6 (insets). 6 California Association for Research in Astronomy: p. 7 (top), courtesy of Itek Optical Systems, in conjunction with the California Association for Research in Astronomy: p. 7 (bottom). E California 8 (insets).

Orange, yellow, green, blue, and violet tir-t to explain light a- a pattern ot bright line- ot different color-. — Joseph von Fraunhoter, German optician (1787 526): developed a way of showing the spectrum more clearly, as a series ot distinct vertical line- ot color, well as dark lines, called -pectral line-. Combined the prism and the telescope into the spectroscope and used it show to that the spectral lines ot the we know planets were the same as those ot the Sun. This suggested, as from the light Moon and planets is Moon as and today, that in tact reflected sunlight.

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