Focus on the Stars

Front Cover
Heinemann Educational, 1977 - Science - 287 pages

From inside the book

 

Contents

Probing Our Galaxy
5
Interstellar Gas and Cosmic Dust
21
The Spiral Structure of the Galaxy
28
Copyright

9 other sections not shown

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Focus on the Stars
Bart Jan Bok
Snippet view - 1977

Common terms and phrases

absorption angle angular diameter apparent magnitude appear astronomers atmosphere atoms band black-body radiation bright chemical composition cm³ collapse communicative civilizations corona cosmic dust detect disk distance Earth effective temperature electrons emission emitted energy density equation evolution Figure flare flux frequency galactic gas clouds H-R diagram Hale Observatories helium helium abundance hydrogen infra-red interferometer interstellar gas ionized light luminosity magnetic main sequence Mariner 9 Mars mass measurements Messier 51 microwave Milky Milky Way system molecular molecules Narrabri neutrinos neutrons noise observed optical orbit parameters particles perturbations photograph photons physics planet planetary systems produced protostar radiation field radio radiometer radiotelescope radius Reflector region Sagittarius shown shows signal solar system space spectral lines spectral type spectrum Spica spiral arms spiral feature spiral galaxies spiral structure stars stellar sunspots supergiant supernova surface telescope theoretical theory tion universe velocity wave wave-length white dwarf

About the author (1977)

Born in northern Holland, Bart Jan Bok received his Ph.D. from the University of Groningen. His poor performance on a Boy Scout examination covering the stellar constellations kindled a lifelong interest in astronomy. Prior to World War II, Bok emigrated to the United States, becoming a citizen in 1938. For nearly 30 years he served on the faculty at Harvard University, where he taught astronomy and directed the Harvard Observatory. From 1966 to 1974, Bok was professor of astronomy at the University of Arizona. Bok is most widely known for the discovery of Bok globules, or small patches of dust that might be the sites of star and planet formation. In his later life, Bok developed astronomical enterprises in Australia and in Arizona. Bol died in 1983.

Bibliographic information

TitleFocus on the Stars
AuthorBart Jan Bok
EditorsBart Jan Bok, Harry Messel, Stuart Thomas Butler
Editionillustrated, reprint
PublisherHeinemann Educational, 1977
Original fromthe University of California
DigitizedMar 17, 2008
ISBN0435682822, 9780435682828
Length287 pages
Subjects ›  › 

Science / Space Science / Astronomy
  
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