Blader door items (45 in totaal)

This book tells how you can build a state-of-the-art Dobsonian telescope using readily available materials and supplies. Every step of construction is detailedin photographs and diagrams, and the underlying ideas are carefully explained. As a result…

The book is welcome, as the number of practical guides to the use of a CCD camera is still strictly limited and mostly based on American products.... A well produced and error-free book." Charge-coupled Devices (CCDs) have revolutionised…

This book is an compilation of articles from the newsletter "Maksutov Circulars", a telescope building organization dedicated originally to building Maksutov telscopes, an original, creative idea for telescope design largely fallen out of favor due…

A collection of working models of sundials and timedials to be cut out and glued. The models include polar, equatorial, sunbeam equatorial, traditional, three-in-one and a nocturnal dial and include a minibook which gives background information,…

Featuring a collection of models to make, they tell the time from the sun during the day and the moon at night. Another mimics the motion of the sun and moon across the sky on any day of the year. The moon globe names all the seas, craters and…

ESO is Europe’s portal to the stars. Here astronomers from fifteen countries join forces to unravel the secrets of the Universe by building the largest telescopes on Earth, designing sensitive cameras and instruments and scrutinising the…

Cet Exellent petit ouvrage, traduit de l'allemand, est un guide pour l'amateur, surtout le débutant, qui désire se procurer une lunette ou un télescopeet commencer des observations. L'auteur commende par donner des consiels précieux pour le choix…

Many observers harbor misgivings about their telescope. The manufacturer may have guaranteed accuracy to one-quarter wavelength or as diffraction-limited but most telescope users have, at best, only a hazy idea of how to personally verifying such…

Into this breach step Rutten and van Venrooij, two Dutch astronomers who wanted to know more about optics but found that resources were generally unavailable to amateurs. So, they wrote their own. Telescope Optics is a compendium of optical…