الكتب الالكترونية

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978-1-84628-180-8
Double & Multiple Stars, and How to Observe Them

The first part of Jim Mullaney’s book provides a comprehensive review of the different classes of double and multiple systems, ...

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978-0-387-72851-3
Guide to Observing Deep-Sky Objects : A Complete Global Resource for Astronomers

Guide to Observing Deep-Sky Objects is an invaluable reference for all amateur astronomers. The book contains, for each constellation, ...

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978-0-387-71353-3
Making Beautiful Deep-Sky Images

Professor Greg Parker's astronomical photographs are widely known for their excellence, and a selection of them has recently ...

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