发表于2025-03-25
A Complete Manual of Amateur Astron 2025 pdf epub mobi 电子书
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Concise, highly readable book discusses: selecting, setting up and maintaining a telescope; amateur studies of the sun; lunar topography and occultations; observations of Mars, Jupiter, Saturn, the minor planets and the stars; an introduction to photoelectric photometry; more. 1981 edition. 124 figures. 26 halftones. 37 tables.
A Complete Manual of Amateur Astron 2025 pdf epub mobi 电子书