Bøger af Martin Mobberley

For many astronomers, the holy grail of observation is to discover a comet, not least because comets always bear the name of their discoverer! Hunting and Imaging Comets was written for comet hunters and digital imagers who want to discover, rediscover, monitor, and make pictures of comets using astronomical CCD cameras and DSLRs. The old days of the purely visual comet hunter are pretty much over, but this is not to say that amateurs have lost interest in finding comets. The books also covers the discovery of comet fragments in the SOHO image data, CCD monitoring of older comets prone to violent outbursts, the imaging of new NEOs (Near Earth Objects) that have quite often been revealed as comets - not asteroids - by amateur astronomers, and the finding of recent comets impacting Jupiter.

In the Victorian era - or for non-British readers, the mid-to-late nineteenth century - amateur astronomy tended to center on Solar System objects. The Moon and planets, as well as bright comets, were the key objects of interest. The brighter variable stars were monitored, but photography was in its infancy and digital imaging lay a century in the future. Today, at the start of the twenty-first century, amateurs are better equipped than any professionals of the mid-twentieth century, let alone the nineteenth. An amateur equipped with a 30-cm telescope and a CCD camera can easily image objects below magnitude 20 and, from very dark sites, 22 or 23. Such limits would have been within the realm of the 100- and 200-inch reflectors on Mount Wilson and Mount Palomar in the 1950s, but no other observatories. However, even those telescopes took hours to reach such limits, and then the photographic plates had to be developed, fixed, and examined by eye. In the modern era digital images can be obtained in minutes and analyzed 'on the fly' while more images are being downloaded. Developments can be e-mailed to other interested amateurs in real time, during an observing session, so that when a cataclysmic event takes place amateurs worldwide know about it. As recently as the 1980s, even professional astronomers could only dream of such instantaneous communication and proc- sing ability.

In meno di due decenni l¿astronomia amatoriale ha cambiato volto. Il motivo, naturalmente, è il progresso tecnologico. Telescopi economici, ma di alta qualità, montature "go-to" controllate dal computer, autoguide, camere CCD, videocamere e (come sempre) computer e Internet sono soltanto alcuni degli elementi che hanno rivoluzionato l¿astronomia del XXI secolo. Non solo hanno reso l¿astronomia amatoriale più "amichevole" e divertente, ma hanno anche ampliato enormemente le potenzialità dell¿astrofilo.Martin Mobberley dapprima affronta le tematiche di base per poi analizzare in modo approfondito quali sono gli strumenti disponibili sul mercato. Da qui prende le mosse per passare in rassegna le rivoluzionarie possibilità che si aprono per gli astrofili, dalla ripresa di immagini, alla spettroscopia, alla fotometria, alla sorveglianza degli oggetti Near-Earth ¿ comete e asteroidi che possono avvicinarsi pericolosamente alla Terra.L¿astrofilo moderno è una valida guida alla nuova astronomia. Sia il neofita che chiede di essere introdotto in questo campo, sia l¿astrofilo esperto che voglia tenersi al passo delle innovazioni troveranno in questo libro ciò che fa per loro.

This is the ultimate, easy-to-read guide for "eclipse-chasers" which includes everything an eclipse chaser needs. The book provides "eclipse virgins" with a good feeling for what a trip abroad to an eclipse is like - including a humorous look at all the things that can and have gone wrong.

Martin Mobberley, a friend of Patrick Moore's for 30 years, and a former President of the British Astronomical Association, has spent ten years exhaustively researching Patrick's real life away from the TV cameras.

OK, the book is far too heavy for the binding and after a few trips outside half the pages in my copy fell out, but apart from that it is an excellent book and surely impossible to improve upon, or even equal, especially in a smaller format book with only half the pages available;

This book is intended for amateur astronomers who are readers of Sky & Telescope magazine or similar astronomy periodicals - or are at least at the same level of knowledge and enthusiasm. Supernovae are often discovered by amateur astronomers, and the book describes the best strategies for discovering and observing them.

This book de-mystifies the jargon of webcams and computer processing, and provides detailed hints and tips for imaging the Sun, Moon and planets with a webcam.

The result of an exhaustive study of Sir Patrick Moore's observations of the Moon and planets for more than 60 years, this book is a fantastic companion to the extremely popular, "It Came From Outer Space Wearing an RAF Blazer!" written by the same author.

Mobberley's most valuable advice will save the book's owner many times its cover price: buy a quality telescope from a reputable dealer and install it in a simple shelter so it can be used with as little set-up time as possible.