Titlebook: Seeing Stars; The Night Sky Throug Chris Kitchin,Robert W. Forrest Book 1998 Springer-Verlag London 1998 Orbit.astronomy.instruments.observ

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Mystic

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紧张过度

Advanced Work,ill probably soon be ready to try out more advanced observations. Some of these may be carried out using your eyes alone, while others will involve making some sort of objective permanent record, such as taking a photographic or electronic image, or producing a data set of brightness changes against

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Book 1998 And what is the effect of observing from a site near a city? The answers are all here, with many photographs that will illustrate exactly what can be seen with different instruments (everything from the naked eye to a 300mm telescope) - and from different locations.

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Galaxies,9.1) like that of stars, and so must be aggregations of very distant stars. The first of these groups we now know as the nebulae (see Chapter 8), and it includes things like H II regions, Planetary Nebulae, Supernova Remnants etc.

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