Kategoria BISAC: Science >> Space Science - Astronomy

This 6th edition of "Tools of Radio Astronomy," the most used introductory text in radio astronomy, has been revised to reflect the current state of this important branch of astronomy. This includes the use of satellites, low radio frequencies, the millimeter/sub-mm universe, the Cosmic Microwave Background and the increased importance of mm/sub-mm dust emission.

Several derivations and presentations of technical aspects of radio astronomy and receivers, such as receiver noise, the Hertz dipole and beam forming have been updated, expanded, re-worked or complemented by alternative...

Examining natural phenomena through the lens of ancient mythology and from the perspective of modern day science, this unique book encourages students to appreciate the magic in both myth and science. This twofold approach helps to clarify the commonality of all human experience with nature, across cultures and throughout time. Eight myths, each from a different cultural background, are accompanied by scientific explanations. By comparing the different explanations for such occurrences as comets, meteors, and eclipses, students will learn to appreciate the similarities in experiences of...

Star Clusters and How to Observe Them is a mine of information for all levels of amateur observers, from beginners to experienced observers. It begins with a detailed yet easily assimilated description of star clusters, how they were formed as our...

In the last few years, cheap webcams have revolutionized amateur astronomy by providing a very inexpensive alternative to purpose-made astronomical CCD cameras, which use refrigerated imaging chips and are thus extremely expensive. Webcams are capable of more advanced work than 'normal' digital cameras because their simple construction makes it easy to remove the webcam's lens, allowing it to be interfaced directly to a telescope. Using a webcam is not difficult but most amateur astronomers who have tried to do this do not achieve the finest results, despite the webcam's potential. There...

This book covers the "why," "how," and "what" of astronomy under light-polluted skies. The prospective city-based observer is told why to observe from home (there are hundreds of spectacular objects to be seen from the average urban site), how to observe the city sky (telescopes, accessories, and moderns techniques), and what to observe. About half of the book is devoted to describing "tours" of the sky, with physical and observational descriptions, at-the-eyepiece drawings, and photographs.

Mercury is one of the more difficult objects for amateur astronomers to observe because of its close proximity to the Sun. For the same reason, it is also one of the most fascinating and strange planets. Mercury is not much larger that our Moon, but orbits the Sun at an average distance of only 58 million km, compared to the Earth's 150 million km. On its sunlit side, Mercury's surface temperature can exceed 450C while the night side freezes at -180C.

Mercury has been the target of professional astronomers through the ages, and then of space probes, the most recent of which...

Since the very beginning of astronomy, people have looked up sky and constructed patterns the constellations out of the almost random scattering of stars in the night sky. The fact that the constellations are still used to day reflects not their historical origins, but their usefulness in identifying bright stars in the rotating dome of the sky. Most people (and all astronomers) are familiar with, for example, the constellation of Orion and can thus easily point to Betelguese and Bellatrix as being Orion s "shoulders." It is the pattern made by the constellation that makes them easy to...