Aurora

This offers an explanation of the aurora's causes, how the occurrence of major auroral events may now be predicted, and how amateur observers can record displays. This is the first serious book about aurora written for practical but non-professional observers.

When auroral storms occur they are a source of great interest and excitement. A number of books highlighting the impact of auroral-geomagnetic storms on communications and satellite technology have appeared in recent years. None, however, has addressed the observational aspect of aurora. This new book fills a gap in the literature, offering an explanation of the aurora's causes, how the occurrence of major events may now be predicted, and how amateur observers can go about recording displays. It is the first serious book about aurora written for practical but non-professional observers. The book provides a concise accessible description of the various auroral forms and how to record them, illustrated with color images of recent displays. It contains details of 'Space Weather' forecasting websites, how to interpret and use the information they offer, and how to anticipate auroral activity.

Provides a concise accessible description of the various auroral forms and how to record them, illustrated with color images of recent displays Contains details of 'Space Weather' forecasting websites, how to interpret and use the information given on these, and how to anticipate auroral activity Features the stories behind major auroral storms which many readers may have witnessed (such as, for example, the huge "Hallowe'en" storm of 2003) This is the only serious book about aurora written for practical but non-professional observers Includes supplementary material: sn.pub/extras

Auteur

Neil Bone is the author of Deep Sky Observer's Guide, Philip's/Firefly (2004); Mars Observer's Guide, Philip's/Firefly (2003); Guide to the Constellations, Astronomy Now/Polestar (2002); Observing Meteors, Comets, Supernovae and other Transient Phenomena, Springer (1998); Observer's Handbook: Meteors Philip's/Sky (1993); The Aurora: Sun-Earth Interactions, Ellis Horwood (1991), Second Edition Wiley/Praxis (1996), as well as numerous articles and papers.

Texte du rabat

The uniquely beautiful light display of an aurora is the result of charged particles colliding with tenuous atmospheric oxygen and nitrogen, more than 60 miles above the Earth, when the magnetosphere is disturbed by changes in the solar wind.

Often - and incorrectly - regarded as being confined to high northern and southern latitudes, major auroral displays are visible from even the southern USA and the south of England, and occur perhaps twenty times in each eleven-year sunspot cycle.

Major auroral storms always cause great interest and excitement in the media, and of course provide practical astronomers with the opportunity to study and image them.

This book describes the aurora from the amateur observational viewpoint, discusses professional studies of auroral and geomagnetic phenomena to put amateur work in context, and explains how practical observers can go about observing and recording auroral displays.

Contenu
Atmospheric Phenomena.- Causes of the Aurora.- Auroral Forecasting.- Observing the Aurora.- Historical Aurorae and More Recent Events.- Aurora Elsewhere.- Early observers and theorists of the aurora classed it along with other atmospheric phenomena as a meteor. In common with many of his other ideas that remained unchallenged until well into the sixteenth century, Aristotle's fourth century BC view of these events being the result of ignition of rising vapors belowthe innermost celestial sphere prevailed for some time. An alternative, proposed by the Roman philosopher Seneca in his Questiones Naturales, was that aurorae were flames viewed through chasmatacracks in the heavenly firmament..- Noctilucent Clouds and other Phenomena.