“…Clifford Cunningham, a dedicated scholar, opens to scrutiny this critical moment of astronomical discovery, continuing the story of asteroid begun in earlier volumes of this series. …”
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“…Rien, pourtant, ne semblait à l'origine militer pour un tel déploiement de moyens scientifiques: la comète ne dépasse pas en éclat les comètes non périodiques les plus brillantes; sa période de révolution _ 76 ans _ est longue; sa trajectoire est telle que le temps d'observation, lors du survol par les sondes, ne dure que quelques heures.Mais la comète de Halley _ du nom de l'astronome anglais Edmund Halley qui, appliquant les lois de la gravitation de Newton, en détermina les éléments orbitaux et prévit la réapparition de 1758 _ est la seule comète brillante et jeune dont la trajectoire soit parfaitement connue à l'avance. …”
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“…The development of numerical tools, including modern symplectic methods, are presented as they pertain to the identification of short-term chaos and long term integrations of the orbits of many astronomical architectures such as stellar triples, planets in binaries, and single stars that host multiple exoplanets. …”
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“…The text evolved from a number of reflections the author made while president of the European Astronomical Society, president of the Swiss Academy of Sciences and vice-president of the European Academies Science Advisory Council (EASAC). …”
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“…These regions are faint and hard to observe, yet hide a tremendous amount of information on the origin and early evolution of galaxies. They thus allow astronomers to address some of the most topical problems, such as gaseous and satellite accretion, radial migration, and merging. …”
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“…This revolutionary new book is written for practical amateur astronomers who not only want to observe, but want to know the details of exactly what they are looking at. …”
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“…Double & Multiple Stars, and How to Observe Them' is written specially for practical amateur astronomers who not only want to observe, but want to know and understand the details of exactly what they are looking at. …”
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“…This "Astronomers' Observing Guides" are designed for practical amateur astronomers who not only want to observe, but want to know the details of exactly what they are looking at. …”
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