What Things To Consider When Purchasing Reflecting Telescope Reflecting telescopes are used for a long period today. They were first created in the 17th century and are sometimes called a reflector that has led to confusion with the refracting and reflecting telescope. The refracting telescope precedes the reflecting telescope but it is seldom utilized and most telescopes that are used nowadays are the reflecting type.
It is because refracting telescopes suffer from chromatic aberrations, a result of the different refractive indexes on the lenses in such telescopes. What it means is that around each image, color fringes appear. While this could be reduced, it is simpler to use a reflecting telescope.Design FactorsThe first reflecting telescope to solve the problem of chromatic aberrations was a telescope that was introduced by Sir Isaac Newton.
The Newtonian design for reflecting telescopes is in use nowadays and is one of the simplest designs of modern telescopes available nowadays. It's also one of the most affordable telescopes. Anyone is deciding to make their own telescope could put together a reflecting telescope of this kind.The Cassegrain or Classic Cassegrain telescope is extremely popular and it is in part due to its compact design.
This is achieved by folding the optics in the telescope. While the design does lose some light gathering power, it has a benefit with a closed tube which stays clean all the time.Best telescopes follow the Ritchey-Chretien design. It's an offshoot of the Cassegrain design and has two hyperbolic mirrors.
This design characteristic differs from the Cassegrain, which uses one parabolic primary mirror instead. This kind of telescopic lens is best in photography.Another reflecting telescope that is used is the Yolo. One of the problems associated with this telescope is that of astigmatism. This can lead to double vision and certain blind spots.
This can be corrected however and an advantage of this telescope is the fact that this eliminates the problem of coma, a problem prevalent in many telescope designs.Depending on your specific needs, you can find different types of reflecting telescopes that would fit your specifications. For amateur telescope building and astronomy, starting with a Newtonian telescope is a great place to begin.
It is also the least expensive kind and a good starting point when you are just beginning to explore the world of telescopes. When you have ignited your passion, there are various other designs which you can try out for star gazing and wide field observation.