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.
評分
評分
評分
評分
本站所有內容均為互聯網搜索引擎提供的公開搜索信息,本站不存儲任何數據與內容,任何內容與數據均與本站無關,如有需要請聯繫相關搜索引擎包括但不限於百度,google,bing,sogou 等
© 2025 book.quotespace.org All Rights Reserved. 小美書屋 版权所有