This book is about the art and technique of telescope design, although to a certain extent it comes under the heading of 'astronomical trivia'. While complete descriptions of the designs are not possible in a single volume, more information can be obtained from the reference lists for each ...
This is a guide to the use of the most popular type of telescope in the world, the 20-cm (8-in) Schmidt-Cassegrain telescope. This compact instrument revolutionized amateur astronomy and astro-photography, and more than ten thousand are purchased each year. Peter Manly, a devotee and keen user of ...
This series meets National Curriculum Standards for: Science: Earth and Space Science, Physical Science, Science and Technology, Science as Inquiry, Science in Personal and Social Perspectives
Improve the resolution and contrast of planetary and lunar images with this set of four color filters that enhance surface details and highlight even the subtlest planetary features. Using the correct filter, for example, can mean the difference between seeing and not seeing small craterlets on the ...
Take your child on a tour of the solar system and introduce the wonders of space. 20 vivid, full-color slides depict the wonders of the solar system both man-made and natural: Earth, sun, moon, comets, asteroids, space shuttle and more Features beautiful images from NASAAdjustable focus knob lets ...
A telescope worthy of its name. it's called the Discoverer and for good reason. With a smaller, more focused library programmed in and ready to go, not even the sky is the limit when you peer into this newest addition to the Bushnell family. Real Voice Output TM uses an actual human voice to take ...