Contains a history of the subjects of space and astronomy, providing definitions and explanations of related topics, plus brief biographies of scientists of the twentieth century.He used radiation theory and lab tests to show the temperature sequence was reflected in the spectral classes. ... Russella#39;s diagram was the first afamily treea of stars and was later called the Hertzsprung-Russell, or simply H-R, diagram (seeanbsp;...
|Title||:||Space and Astronomy|
|Author||:||Marianne J. Dyson|
|Publisher||:||Infobase Publishing - 2009-01-01|