Modern telescopes of even modest aperture can show thousands of double stars. Many are faint and unremarkable but hundreds are worth searching out. Veteran double-star observer Bob Argyle and his co-authors take a close-up look at their selection of 175 of the night sky's most interesting double and multiple stars. The history of each system is laid out from the original discovery to what we know at the present time about the stars. Wide-field finder charts are presented for each system along with plots of the apparent orbits and predicted future positions for the orbital systems. Recent measurements of each system are included which will help you to decide whether they can be seen in your telescope, as well as giving advice on the aperture needed. Double star observers of all levels of experience will treasure the level of detail in this guide to these jewels of the night sky.
"Observing Visual Double Stars, " written by an astronomer who has discovered almost 2,000 of them, opens the way to amateur astronomers who wish to make a direct and real contribution to science through their avocation.Double or binary stars--pairs of stars that revolve around one another--were once thought to be rare, anomalies among the vast number of normal, isolated stars, like our sun. Now, however, it is believed that many if not "most" stars are mated in binary systems. The visual binaries are those whose component stars are rather distant from each other and require decades or even centuries to complete their orbits. Few professional astronomers devote their time to making the observations needed, over these extended periods, to determine the characteristics of even a small sample of these systems. Thus, if any sizable number of double stars are to be closely scrutinized, their periodic variations plotted, and their orbits and masses calculated, the host of amateur astronomers will have to come to the aid of the professionals by making patient, systematic, night-after-night, year-after-year recorded observations."Observing Visual Double Stars" is designed to train amateurs to become such lookouts. After a historical account of the discovery of binaries (from the sighting of the first in 1650, through the work of the Herschels and the Struves in the eighteenth and nineteenth centuries, to the present), the author describes the various classes of telescopes and other instruments and the relevant optical principles. This is followed by practical advice on how to use this apparatus to identify double stars and measure their variations over time.The heart of the book--and its technically most advanced section--presents the mathematical techniques that will allow the observer to calculate orbits and masses from the variables that have been measured. A chapter entitled "Voyage to the Country of Double Stars" describes a binary system as it might appear to an observer within it. The book also explains the use of star catalogues and presents its own catalogue of 744 double stars accessible to the amateur observer.
Written specially for practical amateur astronomers who not only want to observe, but want to know and understand the details of exactly what they are looking at. Presents an up-to-date detailed description of the objects, their physics and their evolution (part one); and then (part two) to consider how to observe and record them successfully. Delivers a wealth of information for all levels of amateur observers, from the beginner to the experienced; it is equally fascinating for practical astronomers, and also for those who simply want to find out more about these unusual star systems.
In this important new anthology. Venetria K. Patton and Maureen Honey bring together a comprehensive scicction of texts from the Harlem Renalssance a key period in the literary and cultural history of the cultural life of the United States. The collection revolutionizes our way of viewing this era, as it redresses the ongoing emphasis on the male writers of this time. Double.Take offers a unique, balanced collection of writers - men and women, gay and straight, familiar and obscure. The editors have also included works from a wide variety of genres poetry, short stories, drama, essays, music, and art - allowing readers to understand the true interdisciplinary quality of this cultural movement. Biographical sketches of the authors are provided and most of the places are included in their entirely. Double.Take also includes artwork and illustrations, many of which are from periodicals and have never before been reprinted. Significantly, Double-Take is the first book to include music lyrics to illustrate the interrelation of various art forms. Arranged by author, rather than by genre, this anthology includes works from major Harlem Renaissance figures as well as often-overlooked essay
From the reviews: "I recommend it to anyone with an interest in binary stars who wants to learn more about these fascinating objects." (Jocelyn Tomkin, The Observatory, April 2005)
This book was first published in 2007. Variable stars are those that change brightness. Their variability may be due to geometric processes such as rotation, or eclipse by a companion star, or physical processes such as vibration, flares, or cataclysmic explosions. In each case, variable stars provide unique information about the properties of stars, and the processes that go on within them. This book provides a concise overview of variable stars, including a historical perspective, an introduction to stars in general, the techniques for discovering and studying variable stars, and a description of the main types of variable stars. It ends with short reflections about the connection between the study of variable stars, and research, education, amateur astronomy, and public interest in astronomy. This book is intended for anyone with some background knowledge of astronomy, but is especially suitable for undergraduate students and experienced amateur astronomers who can contribute to our understanding of these important stars.
Intertitles is an anthology of work situated at the intersection of writing and the visual arts. The anthology aims to explore their confluence and is conceived in response to a twofold observation: the increased presence of written, spoken and performed language in the work of visual artists and the simultaneous increase in visibility and circulation of the work and voices of writers in the visual arts arena. Bringing together a substantial and significant collection of work, the anthology recognises that both writers and artists are attracted to the possibilities of language as a material. Through essays, performance texts, scores, poetry and more, Intertitles plots a course through contemporary writing practices and lends perspective to the question of why this might be of particular interest at this moment in time. In art as in poetry, meaning is made in the very conditions of the encounter itself. The knowledge produced is not instructive or strictly informational but subjective and relational. Artists build the worlds that viewers may inhabit temporarily in the moment of their becoming. The physicality of these temporary utopias, however, is frequently realised in the contested spaces of our museums and galleries. This anthology asks if poetry, and the world it is capable of building outside of these normative structures, is poised to be the most constitutive form of all. Putting poetry into the social milieu, as a shared goal of artists and writers, might be understood as a gesture towards a truly radical reimagining.
Islamic Art and Visual Culture is a collection of primary sources in translation accompanied by clear and concise introductory essays that provide unique insights into the aesthetic and cultural history of one of the world's major religions. Collects essential translations from sources as diverse as the Qur'an, court chronicles, technical treatises on calligraphy and painting, imperial memoirs, and foreign travel accounts Includes clear and concise introductory essays Situates each text and explains the circumstances in which it was written--the date, place, author, and political conditions Provides a vivid window into Islamic visual culture and society An indispensable tool for teachers and students of art and visual culture
Travel to the furthest reaches of the Universe and visit 100 remarkable objects along the way with this stunning space book for curious kids aged 6-8. Space is so much bigger than young minds can fathom and there is always more to learn. The Mysteries of the Universe is a stunning space encyclopedia for young readers to explore, with reference pages packed with fascinating information, little learners will be captivated as they journey through the vastness of the Universe. From planets and asteroids to black holes and galaxies, every page of this enthralling space book reveals the secrets behind more than 100 celestial objects, and will inspire youngsters as they journey through the vastness of the Universe. Each celestial body is shown both photographically and illustrated, and children will love poring over the detailed close-up images. Get ready to explore fun facts and exciting new scientific discoveries as this best-selling picture book will illuminate imaginations and spark curious minds to explore the vastness of space. The engaging storybook-style descriptions and simple text shed a light on facts, myths, and key discoveries about the universe, perfect for children aged 6-8 to explore the wonders of our solar system and beyond. Celebrate your child’s curiosity as they: - Explore Beautiful illustrations and incredible photography that showcase the mysteries of space. - Reveal Engaging storybook-style descriptions that explain key discoveries about the universe - Uncover 100 remarkable objects in the cosmos. This space encyclopedia for children is the perfect blend of storybook style text with out of this world illustrations which makes it a fantastic space book for children who can't get enough of the solar system. Encourage early learners to go on a journey to explore a world of information, making this the ideal first reference book for kids aged 6-8 to enjoy for hours on end, whether reading with the family or reading alone, this fun fact book also doubles up as the perfect gift for curious kids who love to learn. Explore the vastness of space whilst uncovering: -Stunning Jacket Detail: gold foil, holographic foil & metallic gold edges -Striking photography & illustrations inside -A beautiful book for the whole family to treasure -A quality gift to be passed down through the generations More in the Series Mysteries of the Universe is part of the beautiful and informative Anthology series. Complete the series and nurture your child's curiosity as they explore the natural world with The Wonders of Nature or let them walk with the dinosaurs who ruled the earth before them in Dinosaurs and other Prehistoric Life.
Art in Theory 1648-1815 provides a wide-ranging and comprehensive collection of documents on the theory of art from the founding of the French Academy until the end of the Napoleonic Wars.
