The return of the extremely popular ETX125 takes mobile astronomy to the next level. We know you were excited about the 80mm and 90mm apertures.[…]
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The eighth edition of Explorations: An Introduction to Astronomy strives to share with students a sense of wonder about the universe and the dynamic, ever-changing[…]
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This is a big, friendly horse of a telescope you can ride off into the sunset with, and then thrill to well resolved celestial views[…]
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General Features: Aperture： 50mm(1.97in) Focal Length: 350mm(13.78in) Focal Ratio： F7 Eyepiece1： 25mm(0.98in) Magnification1： 14X Eyepiece2： 10mm(0.39in) Magnification2： 35X Max Magnification： 105 Finderscope： 5*24 Zenith Mirrors：[…]
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A textbook that is not written like a textbook. Astronomy: At Play in the Cosmos brings popular science writing to a textbook. In every chapter,[…]
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Corresponding to the escalating “aperture fever” that has gripped amateur astronomy for several decades, an 8″ diameter is now generally regarded as the minimum entry-level[…]
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