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Advancing Variable Star Astronomy

Advancing Variable Star Astronomy PDF
Author: Thomas R. Williams
Publisher: Cambridge University Press
ISBN: 9780521519120
Size: 75.84 MB
Format: PDF, ePub, Mobi
Category : Science
Languages : en
Pages : 448
View: 7086

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Founded in 1911, the AAVSO boasts over 1200 members and observers and is the world's largest non-profit organization dedicated to variable star observation. This timely book marks the AAVSO's centennial year, presenting an authoritative and accurate history of this important association. Writing in an engaging and accessible style, the authors move chronologically through five eras of the AAVSO, discussing the evolution of its structure and purpose. Throughout the text, the main focus is on the thousands of individuals whose contributions have made the AAVSO's progress possible. Describing a century of interaction between amateur and professional astronomers, the authors celebrate the collaborative relationships that have existed over the years. As the definitive history of the first hundred years of the AAVSO, this text has broad appeal and will be of interest to amateur and professional astronomers, as well as historians and sociologists of science in general.

Advancing Variable Star Astronomy

Advancing Variable Star Astronomy PDF
Author: Thomas R. Williams
Publisher: Cambridge University Press
ISBN: 1139496344
Size: 67.66 MB
Format: PDF, ePub
Category : Science
Languages : en
Pages :
View: 3043

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Founded in 1911, the AAVSO boasts over 1200 members and observers and is the world's largest non-profit organization dedicated to variable star observation. This timely book marks the AAVSO's centennial year, presenting an authoritative and accurate history of this important association. Writing in an engaging and accessible style, the authors move chronologically through five eras of the AAVSO, discussing the evolution of its structure and purpose. Throughout the text, the main focus is on the thousands of individuals whose contributions have made the AAVSO's progress possible. Describing a century of interaction between amateur and professional astronomers, the authors celebrate the collaborative relationships that have existed over the years. As the definitive history of the first hundred years of the AAVSO, this text has broad appeal and will be of interest to amateur and professional astronomers, as well as historians and sociologists of science in general.

Observer S Guide To Variable Stars

Observer s Guide to Variable Stars PDF
Author: Martin Griffiths
Publisher: Springer
ISBN: 3030009041
Size: 76.58 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 316
View: 7609

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This book contains everything you need to know about variable stars -- stars whose brightness varies noticeably over time. The study of variable stars has been a particularly popular area of research for amateurs for many years; the material contained herein serves as both an introduction to amateur astronomers and a useful reference source for seasoned variable star observers. With its thorough, non-mathematical descriptions of variable stars and tips for how to see them, this book enables novices and experts alike to set off into the field and observe a wide range of delightful sights. It strikes a balance between easily visible objects that can be seen in any telescope or binoculars, and variable stars that are a direct challenge to those with large aperture equipment or access to photometric tools and methods. After helping the observer differentiate between variable star types, the author goes on to explain the skills needed to operate a telescope and other equipment, as well as how to couple filters to a CCD camera or digital SLR camera in order to photometrically record these celestial objects. Further, the book includes an observational guide to 50 objects for study, with finder charts and data about light curves for ease of identification, along with the stars’ celestial coordinates, magnitudes, and other pertinent information.

Charles Olivier And The Rise Of Meteor Science

Charles Olivier and the Rise of Meteor Science PDF
Author: Richard Taibi
Publisher: Springer
ISBN: 3319445189
Size: 66.43 MB
Format: PDF, ePub, Mobi
Category : Science
Languages : en
Pages : 497
View: 5307

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This fascinating portrait of an amateur astronomy movement tells the story of how Charles Olivier recruited a hard-working cadre of citizen scientists to rehabilitate the study of meteors. By 1936, Olivier and members of his American Meteor Society had succeeded in disproving an erroneous idea about meteor showers. Using careful observations, they restored the public’s trust in predictions about periodic showers and renewed respect for meteor astronomy among professional astronomers in the United States. Charles Olivier and his society of observers who were passionate about watching for meteors in the night sky left a major impact on the field. In addition to describing Olivier’s career and describing his struggles with competitive colleagues in a hostile scientific climate, the author provides biographies of some of the scores of women and men of all ages who aided Olivier in making shower observations, from the Leonids and Perseids and others. Half of these amateur volunteers were from 13 to 25 years of age. Their work allowed Olivier and the AMS to contradict the fallacious belief in stationary and long-enduring meteor showers, bringing the theory of their origin into alignment with celestial mechanics. Thanks to Olivier and his collaborators, the study of meteors took a great leap forward in the twentieth century to earn a place as a worthy topic of study among professional astronomers.

Das Glas Universum

Das Glas Universum PDF
Author: Dava Sobel
Publisher: eBook Berlin Verlag
ISBN: 3827079519
Size: 44.35 MB
Format: PDF
Category : Mathematics
Languages : de
Pages : 464
View: 5896

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Es war die Zeit, in der Edison mit seiner elektrischen Glühbirne für Aufsehen sorgte, als Frauen an der amerikanischen Ostküste erstmals die Gestirne erkundeten. Ein Professor der Harvard University engagierte sie Anfang der 1880er-Jahre zunächst als "Computer" – als Rechnerinnen – am Observatorium. Darunter nicht nur Familienmitglieder von Astronomen, sondern auch Absolventinnen der neuen Frauen-Colleges und begeisterte Sternbeobachterinnen. Und sie leisteten wahrlich Erstaunliches: Die ledige Mutter und ehemalige Haushälterin Williamina Fleming etwa machte durch ihre Berechnungen allein schon an die 300 Sterne ausfindig. Die Pfarrerstochter Antonia Maury entwickelte eine eigene Klassifikation der Planeten, die heute als Grundstein der modernen Astrophysik gelten kann. Doch wenige der Harvard-Frauen fanden später die verdiente Anerkennung auf einer eigenen Forschungsstelle. Dem Wirken der ambitionierten Wissenschaftlerinnen ein Denkmal zu setzen ist daher Dava Sobels Anliegen mit ihrem neuen, spannend erzählten Buch.

Celestial Shadows

Celestial Shadows PDF
Author: John Westfall
Publisher: Springer
ISBN: 1493915355
Size: 10.96 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 713
View: 7658

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Much of what is known about the universe came from the study of celestial shadows. This book looks in detail at the way eclipses and other celestial shadows have given us amazing insights into the nature of the objects in our solar system and how they are even helping us discover and analyze planets that orbit stars other than our Sun. A variety of eclipses, transits, and occultations of the mooons of Jupiter and Saturn, Pluto and its satellite Charon, asteroids and stars have helped astronomers to work out their dimensions, structures, and shapes - even the existence of atmospheres and structures of exoplanets. Long before Columbus set out to reach the Far East by sailing West, the curved shadow of the Earth on the Moon during a lunar eclipse revealed that we inhabit a round world, a globe. More recently, comparisons of the sunlit and Earthlit parts of the Moon have been used to determine changes in the Earth's brightness as a way of monitoring possible effects in cloud coverage which may be related to global warming. Shadows were used by the Greek mathematician Eratosthenes to work out the first estimate of the circumference of the Earth, by Galileo to measure the heights of the lunar mountains and by eighteenth century astronomers to determine the scale of the Solar System itself. Some of the rarest and most wonderful shadows of all are those cast onto Earth by the lovely "Evening Star" Venus as it goes between the Earth and the Sun. These majestic transits of Venus occur at most two in a century; after the 2012 transit, there is not a chance to observe this phenomenon until 2117, while the more common sweep of a total solar eclipse creates one of the most dramatic and awe-inspiring events of nature. Though it may have once been a source of consternation or dread, solar eclipses now lead thousands of amateur astronomers and "eclipse-chasers" to travel the globe in order to experience the dramatic view under "totality." These phenomena are among the most spectacular available to observers and are given their full due in Westfall and Sheehan's comprehensive study.

Pulsating Stars

Pulsating Stars PDF
Author: Márcio Catelan
Publisher: John Wiley & Sons
ISBN: 3527407154
Size: 80.90 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 472
View: 6835

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This book surveys our understanding of stars which change in brightness because they pulsate. Pulsating variable stars are keys to distance scales inside and beyond the Milky Way galaxy. They test our understanding not only of stellar pulsation theory but also of stellar structure and evolution theory. Moreover, pulsating stars are important probes of the formation and evolution of our own and neighboring galaxies. Our understanding of pulsating stars has greatly increased in recent years as large-scale surveys of pulsating stars in the Milky Way and other Local Group galaxies have provided a wealth of new observations and as space-based instruments have studied particular pulsating stars in unprecedented detail.

The Glass Universe

The Glass Universe PDF
Author: Dava Sobel
Publisher: Penguin
ISBN: 069814869X
Size: 78.62 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 336
View: 5492

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From #1 New York Times bestselling author Dava Sobel, the "inspiring" (People), little-known true story of women's landmark contributions to astronomy A New York Times Book Review Notable Book of 2017 Named one of the best books of the year by NPR, The Economist, Smithsonian, Nature, and NPR's Science Friday Nominated for the PEN/E.O. Wilson Literary Science Writing Award "A joy to read.” —The Wall Street Journal In the mid-nineteenth century, the Harvard College Observatory began employing women as calculators, or “human computers,” to interpret the observations their male counterparts made via telescope each night. At the outset this group included the wives, sisters, and daughters of the resident astronomers, but soon the female corps included graduates of the new women's colleges—Vassar, Wellesley, and Smith. As photography transformed the practice of astronomy, the ladies turned from computation to studying the stars captured nightly on glass photographic plates. The “glass universe” of half a million plates that Harvard amassed over the ensuing decades—through the generous support of Mrs. Anna Palmer Draper, the widow of a pioneer in stellar photography—enabled the women to make extraordinary discoveries that attracted worldwide acclaim. They helped discern what stars were made of, divided the stars into meaningful categories for further research, and found a way to measure distances across space by starlight. Their ranks included Williamina Fleming, a Scottish woman originally hired as a maid who went on to identify ten novae and more than three hundred variable stars; Annie Jump Cannon, who designed a stellar classification system that was adopted by astronomers the world over and is still in use; and Dr. Cecilia Helena Payne, who in 1956 became the first ever woman professor of astronomy at Harvard—and Harvard’s first female department chair. Elegantly written and enriched by excerpts from letters, diaries, and memoirs, The Glass Universe is the hidden history of the women whose contributions to the burgeoning field of astronomy forever changed our understanding of the stars and our place in the universe.

A Companion To The History Of American Science

A Companion to the History of American Science PDF
Author: Georgina M. Montgomery
Publisher: John Wiley & Sons
ISBN: 1119072220
Size: 43.70 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 712
View: 6805

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A Companion to the History of American Science offers a collection of essays that give an authoritative overview of the most recent scholarship on the history of American science. Covers topics including astronomy, agriculture, chemistry, eugenics, Big Science, military technology, and more Features contributions by the most accomplished scholars in the field of science history Covers pivotal events in U.S. history that shaped the development of science and science policy such as WWII, the Cold War, and the Women’s Rights movement

A Companion To The History Of Science

A Companion to the History of Science PDF
Author: Bernard Lightman
Publisher: John Wiley & Sons
ISBN: 1119121140
Size: 76.22 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 624
View: 3414

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The Wiley Blackwell Companion to the History of Science is a single volume companion that discusses the history of science as it is done today, providing a survey of the debates and issues that dominate current scholarly discussion, with contributions from leading international scholars. Provides a single-volume overview of current scholarship in the history of science edited by one of the leading figures in the field Features forty essays by leading international scholars providing an overview of the key debates and developments in the history of science Reflects the shift towards deeper historical contextualization within the field Helps communicate and integrate perspectives from the history of science with other areas of historical inquiry Includes discussion of non-Western themes which are integrated throughout the chapters Divided into four sections based on key analytic categories that reflect new approaches in the field