01062nam a2200217Ia 4500 CTU_136568 210402s9999 xx 000 0 und d 19.95 520 B261 Barnes-Svarney, Patricia L. Through the telescope : A guide for the amateur astronomer Patricia L. Barnes-Svarney, Michael R. Porcellino New York McGraw Hill 2000 Through the Telescope presents a uniquely "user-friendly" view of the universe, and offers both novice and advanced amateur astronomers some of the best tools available to watch the nighttime skies. You'll learn all about: Setting up a good, user-friendly telescope system; Spotting comets and asteroids; Upgrading your telescope for peak performance; How to spot star clusters, nebulae, even a supernova; Forming your own network of amateur astronomers. Thiên văn học,Astronomy Giang Trung tâm Học liệu Trường Đại học Cần Thơ