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Star testing revealed tube currents
In Cancer we explore the open clusters M44 and M67
What Sky & Telescope's Peter Tyson
element splitting
In volume 12 of Annals of the Deep Sky
Telescope Optics - A comprehensive Manual for Amateur Astronomers Atlases Star testing revealed tube currentsBy Harrie Rutten and Martin van Venrooij Product Information: 6. 00"" by 9. 00"", 374 pages, hardbound. This book will both arouse your curiosity and answer your questions. Why are there so many different kinds of telescopes? What does each type have to offer? What makes one telescope better than another? Which are best? Why? What are the tradeoffs? As a telescope buyer, you will be better informed; as a telescope maker, you will be able to design
US$ 41.90
US$ 41.90
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US$ 41.90
