Offers amateur astronomers a guide to techniques and available technologies for observing the night sky from an urban location, discussing optimal weather conditions, ways to reduce the effects of light, different types of telescopes, and readily seen celestial bodies
Leading scientists offer a collection of essays that furnish illuminating explanations of recent discoveries in modern astrophysics--from the Big Bang to black holes--the possibility of life on other worlds, and the emerging technologies that make such research possible, accompanied by incisive profiles of such key figures as Carl Sagan and Georges Lemaetre. Original.
This essay delves into the most intimate secret of Naples through an archaeoastronomical inquiry. It demonstrates that religious and philosophical motivations were central to the urban planning of its ancient Greek centre, Neapolis, constructed in the 6th- 5th centuries BC by Cumaeans and other Greek colonists. The design of the city's streets and its distinctive geographical-astronomical orientation evoked the cults of Apollo (the Greek Sun-god) and Parthenope (the local Numen, who reminds the mythical Sibyl of Cumae) on solstices and equinoxes. Neapolis' street grid was also inspired by Pythagorean cosmology, as it was designed with golden ratio and decagonal proportions. These elements combined to make Neapolis a perfect microcosm, or better yet, a temple-city centred on the cult of the Sun and Parthenope. Finally, the city’s religious traditions likely increased the public impact of the martyrdom of Saint Januarius, facilitating the Christianization of Naples in the 4th century AD. Naples’ ancient streets, culture, and Cathedral still preserve the legacy of Neapolis' solar traditions in their geometries, symbols, hymns, sweets, mosaics, and relics
With over 100,000 copies sold since first publication, this is one of the most popular astronomy books of all time. It is a unique guidebook to the night sky, providing all the information you need to observe a whole host of celestial objects. With a new spiral binding, this edition is even easier to use outdoors at the telescope and is the ideal beginner's book. Keeping its distinct one-object-per-spread format, this edition is also designed for Dobsonian telescopes, as well as for smaller reflectors and refractors, and covers Southern hemisphere objects in more detail. Large-format eyepiece views, positioned side-by-side, show objects exactly as they are seen through a telescope, and with improved directions, updated tables of astronomical information and an expanded night-by-night Moon section, it has never been easier to explore the night sky on your own. Many additional resources are available on the accompanying website, www.cambridge.org/turnleft.
This remarkable history encompasses not only the achievements of the early inventors and astronomers but also the less frequently recounted stories of the instrument makers and of the actual instruments. A model of unsurpassed, comprehensive scholarship, this volume covers many fields, including professional and amateur astronomy. 196 black-and-white illustrations.