Postage stamp collectors often concentrate on particular types or themes. Amateur astronomers do the same, as a wealth of viewing pleasure came be had from choosing a small set of what's available in the sky. Peter Grego in his book Solar System Observer's Guide provides a thorough and descriptive aid for those astronomers who want to concentrate on our own small region of the universe. In it, he shows planets and other nearby celestial objects can be demanding and rewarding in their own right.
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