Now in full colour throughout, the sixth edition of Ian Ridpath and Wil Tirion's famous guide to the night sky is fully revised and updated for planet positions and forthcoming eclipses up to the end of the year 2007. With one chapter for each month of the year, this easy-to-use handbook is an ideal first guide to the sky. It will help the reader to identify constellations, star clusters, nebulae, galaxies and metor showers, to plot the movement of planets, or to witness solar and lunar eclipses. Most of the features discussed are visible to the naked eye and all can be seen with a small telescope or binoculars. The Monthly Sky Guide offers a clear and simple introduction to the skies of the northern hemisphere for beginners of all ages.

Marvel at the wonders of the Universe, from stars and planets to black holes and nebulae, in this exploration of our Solar System and beyond. Universe opens with a look at astronomy and the history of the Universe, using 3D artworks to provide a comprehensive grounding in the fundamental concepts of astronomy, including the basic techniques of practical astronomy. The core of the ebook is a tour of the cosmos covering the Solar System, the Milky Way, and galaxies beyond our own. Explanatory pages introduce different celestial phenomena, such as galaxies, and are followed by catalogues that profile the most interesting and important examples. A comprehensive star atlas completes the picture, with entries on each of the 88 constellations and a monthly sky eguide showing the night sky as it appears throughout the year as viewed from both the northern and southern hemispheres.

Now with removable planisphere! Starfinder lays out the universe clearly, highlighting the signposts in the sky and explaining the cosmology of the stars. Discover the wonders of the night sky with up-to-date information about the universe, including monthly charts to both the northern and southern hemisphere, and a section on observing the Moon, planets, and other bodies of the solar system.

Sky Guide Africa South 2019 is a practical resource for all astronomers, whether they be novice, amateur or professional. It covers the upcoming year’s planetary movements, predicted eclipses, meteor showers – any events and facets of the night sky that change annually. Star charts plot the evening sky for each season, facilitating the identification of stars and constellations. The guide contains a wealth of information about the Sun, Moon, planets, comets, meteors and bright stars, with photos, diagrams, charts and images. There’s also an excellent list of useful websites and a comprehensive glossary. This annual publication is an invaluable guide for anyone who has even a passing interest in the night skies of southern Africa and is ‘... an absolute must for first-time star-gazers and professional astronomers alike’. Sales points: Contains the latest, most-up-to-date information, packed with charts, illustrations, images, tables, etc. for quick reference, will appeal to a wide audience, from beginners to professionals, includes tips on basic night-sky gazing, excellent value for money.

"The agricultural sky" is a dominant natural entity that has influenced, interacted with, and guided the evolution of crops, farming practices, and cropping systems. The sky—and all its components—above and near agricultural areas is an important aspect of an agricultural enterprise—as important as soils, water, and crop species. The blue sky above crops that is seemingly clear, tranquil or sometimes filled with clouds, is really a repository of a large number of gases, mineral or organic particulate matter, dust, mist, turbulent wind, innumerable species of micro-organisms, tiny biotic flora/fauna, seeds, insects, etc. The agrarian sky supports complex interactions of biotic and abiotic aspects with perhaps immediate and/or delayed influence on crops sown on the ground. This volume helps us to better understand the importance of the sky above crop fields, with the goal to encourage revolutionary agronomic procedures that lead to higher yield. It is a comprehensive treatise on the agriculture sky, covering basic definitions, limits, and explanations about atmospheric layers like troposphere, stratosphere, and the phyllosphere. The volume addresses the nutrient dynamics in the sky and their relevance to crop productivity. It looks at both natural biotic and manmade abiotic factors in the sky and how they affect what goes on below, such as from dust storms, at cloudy and/or windy locations, and from high-altitude jet streams. The author discusses wind and solar power generation in the agrarian sky and explores aeroponics to revolutionize crop production. The volume delves into several types of aerial robots, employing AI and other technology, to provide aerial spectral data that are capable of analyzing procedures, soil conditions, irrigation, insect pests, weed detection, herbicide application, soil fertility, and much more. The book includes examples from the North American Great Plains, Pampas of Argentina, Sahelian production zones of West Africa, Indo-Gangetic Plains, etc. This eye-opening book, The Agricultural Sky: A Concept to Revolutionize Farming, will be useful to students and professors in universities as well as to researchers in industry dealing with aerial aspects of farming.

Issues for Nov. 1957- include section: Accessions. Aanwinste, Sept. 1957-