astronomical

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Astronomical Papyri From Oxyrhynchus

Author : Alexander Jones
ISBN : 0871692333
Genre : Science
File Size : 40. 73 MB
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Presents 200 hitherto unpub. astronomical texts & horoscopes written in Greek on papyrus, which were excavated a century ago in the rubbish heaps of Oxyrhynchus, a district capital of Roman Egypt. Through these documents we obtain the first coherent picture of the range of astronomical activity, chiefly in the service of astrology, during the Roman Empire. The astronomy of this period turns out to have been much more varied than we previously thought, with Babylonian arithmetical methods of prediction coexisting with tables based on geometrical models of orbits. Editions of the texts are accomp. by facing translations & explanatory & philological commentaries. The intro. provides the first comprehensive treatment of astronomical papyri, explaining their contents & purpose, the underlying astronomical theories, & strategies for analyzing & dating them. Tables & graphs.

Astronomical Telescopes And Observatories For Amateurs

Author : Patrick Moore
ISBN : UOM:39015049305876
Genre : Science
File Size : 75. 41 MB
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Adaptive Optics For Astronomical Telescopes

Author : John W. Hardy
ISBN : 0195090195
Genre : Science
File Size : 57. 23 MB
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This book by one of the leaders in adaptive optics covers the fundamental theory and then describes in detail how this technology can be applied to large ground-based telescopes to compensate for the effects of atmospheric turbulence. It includes information on basic adaptive optics components and technology, and has chapters devoted to atmospheric turbulence, optical image structure, laser beacons, and overall system design. The chapter on system design is particularly detailed and includes performance estimation and optimization. Combining a clear discussion of physical principles with numerous real-world examples, this book will be a valuable resource for all graduate students and researchers in astronomy and optics.

Astronomical Photometry

Author : C. Sterken
ISBN : 0792316533
Genre : Science
File Size : 59. 55 MB
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Small and large telescopes are being installed all around the world. Astronomers have thus acquired better access to more modern equipment; not in the least to photometers, which are very important tools for the contemporary observer. This development of higher quality and more sensitive equipment makes it very necessary to improve the accuracy of the measurements. This guide helps the astronomer and astronomy student to improve the quality of their photometric measurements and to extract a maximum of information from their observations. The book is based on the authors' observing experience, spending numerious nights behind various instruments at many different observatories.

Explanatory Supplement To The Astronomical Almanac

Author : P. Kenneth Seidelmann
ISBN : 1891389459
Genre : Science
File Size : 85. 32 MB
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The Explanatory Supplement provides a detailed description of how to perform practical astronomy or spherical astronomy. This completely revised and rewritten edition is an authoritative source on astronomical phenomena and calendars. Although this paperback edition carries a 2006 copyright date, it is the same material published in 1992 hardcover edition.

The Analysis Of Starlight

Author : J. B. Hearnshaw
ISBN : 0521399165
Genre : Science
File Size : 88. 74 MB
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This book presents a detailed pedagogical account of the equation of state and its applications in several important and fast growing topics in theoretical physics, chemistry and engineering. This book is the storv of the analysis of starlight by astronomical spectroscopy. It describes the development of the subject from the time of Joseph Fraunhofer, who, in 1814, used a telescope-mounted prism to observe the spectral light emitted from several bright stars. He discovered that light was missing at certain colours (wavelengths) in the starlight, and these so-called spectral lines were subsequently shown to hold clues to the nature of the stars themselves. The book explains how the classification of stars using their line spectra developed into a major branch of astronomy whilst new methods in astrophysics made possible the approximate quantitative analysis of spectral lines in the 1920s and 1930s. After the Second World War these techniques were considerably improved when computers were programmed to model the structure of the outer layers of stars. Basic concepts in spectroscopy and spectral analysis are also covered and. finally. Dr Hearnshaw comments on the stellar spectroscopy of some individual star.

Astronomical Spectroscopy

Author : Jonathan Tennyson
ISBN : 9789814291972
Genre : Science
File Size : 55. 50 MB
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Nearly all information about the Universe comes from the study of light as it reaches us. However, understanding the information contained in this light requires both telescopes capable of resolving it into its component colours and a detailed knowledge of the quantum mechanical behaviour of atoms and molecules. This book, which is based on a third-year undergraduate course taught by the author at University College London, presents the basic atomic and molecular physics necessary to understand and interpret astronomical spectra. It explains how and what kind of information can be extracted from these spectra. Contemporary astronomical spectra are used extensively to study the underlying atomic physics and illustrate the results.

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