The remaining three parts deal with the specific steps needed to build each of the three telescopes described above. I'm not saying you can't eventually be a good or even a first-rate astrophotographer; far from it. Here are some shots of making the replica finder rings on the 4 inch for those interested in machining. The Meade and Celestron computer controlled telescopes have approximately the following features: This system employs two mirrors; a Parabolic "Primary" mirror its diameter - or aperture - is the factor by which most telescopes are described, hence an 8" telescope has a primary mirror 8" or 20cm in diameter.
For my article about the user-friendly stowage 'kennel' for the mm Newtonian telescope please e-mail me and I can send you a K pdf document. We covered the "does it all" scope already; sadly it doesn't exist. And so we at Company Seven first work to encourage and inform the novice by explaining what they may realistically expect to observe with a telescope. Company Seven will adjust this as is needed during our normal checkout procedure. The Eyepiece There are now more good to excellent quality telescopes available to the consumer than ever before. Some designs are better suited for some activities and the users' lifestyle than others. Buy from Telescope Shops, not Department Stores I'll begin with the single most important piece of advice for getting a good telescope:
marylandagriculture.info - Amateur Telescope Maker and Home Machinest
Refractor Telescopes The refractor telescope is what most non-astronomers think of as a "telescope". During the last visit of Comet Halley, New York mail order camera stores entered the telescope market and this too has squeezed the traditional telescope retailers further. Where and who they work well for: The scope actually performs well on a nice Bogen Tripod and the Questar folks sell an elegant mount for a lot of money. And with the ability to track in Right Ascension comes the electronic capability to make fine adjustments in Declination too, since this is a "dual axis" drive system.
In an equatorial arrangement the Fork Mount is an aid to teaching concepts in astronomy including the Coordinate System used for Celestial Navigation. So now speed up that motion of "up, right, etc. The compact optical tube of most Cassegrain telescopes belie their relatively high f10 to f15 effective focal ratios. The three models I made are all of aluminum and are fully functional small telescopes. It is especially designed for beginners, being both inexpensive and easy to make. Just as important as the scope itself is the mount , or apparatus that supports the telescope and allows you to aim it about the sky. Binoculars are a big step up in viewing power compared to the naked eye, and give you a chance to learn the night sky.