This catalog of dounle stars is among the most comprehensive ever printed. With over 2,100 star pairings listed with coordinates, color, and interesting information about every pair, Double Stars for Small Telescopes is an essential addition to the library of every astronomy enthusiast. 248 pages, 8 1/2 x 11 invhes, softcover.
發表於2025-01-09
Double Stars for Small Telescopes 2025 pdf epub mobi 電子書 下載
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Double Stars for Small Telescopes 2025 pdf epub mobi 電子書 下載