Packed with up-to-date astronomical data about the Solar System, our Galaxy and the wider Universe, this is a one-stop reference for astronomers of all levels. It gives the names, positions, sizes and other key facts of all the planets and their satellites; discusses the Sun in depth, from sunspots to solar eclipses; lists the dates for cometary returns, close-approach asteroids, and significant meteor showers; and includes 88 star charts, with the names, positions, magnitudes and spectra of the stars, along with key data on nebulae and clusters. Full of facts and figures, this is the only book you need to look up data about astronomy. It is destined to become the standard reference for everyone interested in astronomy.

This is the tale of the modern Space Age, detailing all the risks, rewards and rivalries that have fueled space exploration over the decades. Jump into a world of ambitious entrepreneurs and determined spacefaring nations, of secret spy satellites and espionage, of all the cooperative and competing interests vying for dominance in ways little known to the public. Written by an Italian aeronautical engineer with over thirty years of experience in government and private industry, this English translation explains how and why the game has fundamentally evolved and where it is headed next. Exploring such topics as GPS and cyberspace, the economics of private and public industry and the political motivations of emerging spacefaring powerhouses like China, this book is an engaging foray into the ongoing battle for our terrestrial home through extraterrestrial means.

Da quando e iniziata la rivoluzione della fotografia digitale, con i sensori CCD che hanno soppiantato la pellicola, qualsiasi appassionato del cielo, dotandosi di una strumentazione non particolarmente costosa, puo diventare esploratore attivo dell'immensita della volta celeste, potenzialmente un vero e proprio astronomo.

In questo libro, l'autore mostra quanto e possibile ottenere (ed e tanto ) nello studio del cielo con un telescopio amatoriale di soli 25 cm di diametro, anche attraverso tecniche di ripresa innovative, come la fotografia dei pianeti fatta in pieno giorno, o la ripresa di dettagli della superficie di Venere, nonostante il fatto che il pianeta sia perennemente avvolto da una coltre impenetrabile di nubi."

A hands-on introduction to machine learning and its applications to the physical sciences As the size and complexity of data continue to grow exponentially across the physical sciences, machine learning is helping scientists to sift through and analyze this information while driving breathtaking advances in quantum physics, astronomy, cosmology, and beyond. This incisive textbook covers the basics of building, diagnosing, optimizing, and deploying machine learning methods to solve research problems in physics and astronomy, with an emphasis on critical thinking and the scientific method. Using a hands-on approach to learning, Machine Learning for Physics and Astronomy draws on real-world, publicly available data as well as examples taken directly from the frontiers of research, from identifying galaxy morphology from images to identifying the signature of standard model particles in simulations at the Large Hadron Collider. Introduces readers to best practices in data-driven problem-solving, from preliminary data exploration and cleaning to selecting the best method for a given task Each chapter is accompanied by Jupyter Notebook worksheets in Python that enable students to explore key concepts Includes a wealth of review questions and quizzes Ideal for advanced undergraduate and early graduate students in STEM disciplines such as physics, computer science, engineering, and applied mathematics Accessible to self-learners with a basic knowledge of linear algebra and calculus Slides and assessment questions (available only to instructors)

Die Strukturbildung im Kosmos ist neben der Expansionsgeschichte des Universums ein heiAes Thema der Kosmologie. Denn die Frage, wie Sterne und Galaxien und die verschiedensten astronomischen Exoten entstanden sind, fA1/4hrt die Astronomen vor immer neue RAtsel. Denn es ist, wenn alles mit allem zusammenhAngt, nicht so einfach, anhand physikalischer Gesetze rechnerisch Galaxien aus Staub und Materie enstehen zu lassen oder zu verfolgen, was bei Galaxienkollisionen passiert. Wie sich die Astrophysik dennoch Einblicke in die Entstehung der beobachteten Strukturen zu verschaffen weiA, verrAt dieses Buch.

Between 1800 and 1870 meteorology emerged as both a legitimate science and a government service in America. Challenging the widely held assumption that meteorologists were mere "data-gatherers" and that U.S. scientists were inferior to their European counterparts, James Rodger Fleming shows how the 1840s debate over the nature and causes of storms led to a "meteorological crusade" that would transform both theory and practice. Centrally located administrators organized hundreds of widely dispersed volunteer and military observers into systematic projects that covered the entire nation. Theorists then used these systems to "observe" weather patterns over large areas, making possible for the first time the compilation of accurate weather charts and maps.

When in 1870 Congress created a federal storm-warning service under the U.S. Army Signal Office, the era of amateur scientists, volunteer observers, and adhoc organizations came to an end. But the gains had been significant, including advances in natural history and medical geography, and in understanding the general circulation of the earth's atmosphere.

How the public image of the Soviet cosmonaut was designed and reimagined over timeIn this book, Cathleen Lewis discusses how the public image of the Soviet cosmonaut developed beginning in the 1950s and the ways this icon has been reinterpreted throughout the years and in contemporary Russia. Compiling material and cultural representations of the cosmonaut program, Lewis provides a new perspective on the story of Soviet spaceflight, highlighting how the government has celebrated figures such as Yuri Gagarin and Valentina Tereshkova through newspapers, radio, parades, monuments, museums, films, and even postage stamps and lapel pins. Lewis's analysis shows that during the Space Race, Nikita Khrushchev mobilized cosmonaut stories and images to symbolize the forward-looking Soviet state and distract from the costs of the Cold War. Public perceptions shifted after the first Soviet spaceflight fatality and failure to reach the Moon, yet cosmonaut imagery was still effective propaganda, evolving through the USSR's collapse in 1991 and seen today in Vladimir Putin's government cooperation for a film on the 1985 rescue of the Salyut 7 space station. Looking closely at the process through which Russians continue to reexamine their past, Lewis argues that the cultural memory of spaceflight remains especially potent among other collective Soviet memories.

Descended from French Protestants who had emigrated to Geneva, Leopold de Saussure (1866-1925) began his career in the French navy. Before retiring with the rank of lieutenant in 1899, he had learned Chinese and how to accurately observe the stars. The study of ancient Chinese astronomy then became the focus of his scholarly energies, and he made a number of significant contributions. Posthumously published in 1930, this work gathers together eleven of the twelve articles that originally appeared in the journal T'oung Pao between 1907 and 1922. In his preface, the French orientalist Gabriel Ferrand (1864-1935) quotes a letter, written by Saussure a month before his death, noting a shift of opinion: he now believed China had been influenced by the Middle East rather than vice versa. Irrespective of the question of priority, Saussure's work here reveals the depth of his understanding of the Chinese system.