Includes original jacket. Slightly cocked, lightly rubbed. 1957 Hard Cover. 336 pp. Abetti's The Sun has been recognized as the authoritative treatment of the subject since its first appearance in Italian in 1934... to bring his work up to date, Professor Abetti produced a revised and enlarged edition in 1951; this edition, further revised to 1954, now makes its first appearance in English... It is a comprehensive treatment of all aspects of modern solar knowledge - the instruments employed, the methods of observation, the results of telescopic and spectroscopic observation, theories of the Sun's constitution and internal economy, the sources of solar energy, and solar-terrestrial relationships. The Sun is not only an essential book for the professional astronomer but is also a fascinating story for the inquiring layman.

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