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The three primary types of telescopes that the amateur astronomer might buy are the Refractor, the Reflector and the Schmidt Cassegrain telescope.  The first two are named for the kind of lens that is used.  It is pretty easy to see that the lens is the heart of the telescope so the kind that you will use will determine the success of your use of that telescope. The refractor lens is the simplest because it uses a convex lens to focus the light on the eyepiece.  So the lens bends outwards for this purpose.  The refractor telescope’s strength is in viewing planets.  The reflector’s strength is in seeing more distant objects and the lens is concave or bends in.  It uses mirrors to focus the image that you eventually see.  The final type, the Schmidt Cassegrain telescope is the most complex and accomplishes the goals of both but it uses an involved system of mirrors to capture the image you want to see.

That common experience is what makes astronomy one of the most exciting and popular hobbies of them all.  Any hobby has to have a few “wow” moments.  Whether it’s hitting that strike in bowling or finding that perfect stamp, there has to be a moment when the bell rings.  Well astronomy has many “wow” moments that occur virtually any clear night in the stars.  From the coming of an asteroid shower to just figuring out another constellation, there is so much to do and play with in astronomy that you can be a hobbyist your whole life and never get bored. Besides the excitement of astronomy, another reason it makes a great hobby is that it is easy and cheap to get started.  Unlike skiing for example, to just start enjoying astronomy, all you need is the night sky.  But there is no end to the levels of complexity and sophistication you can get to as you move along in astronomy as well.  So like any good hobby, astronomy is endlessly fascinating and tremendously addictive because there is always more you want to learn and more you can do to make your knowledge and experiences more interesting and fun.

An amazing piece of astronomy trivia that few people know is that in truth, only about ten percent of the universe is visible using conventional methods of observation.  For that reason, the Hubble really was a huge leap forward.  That is for the very simple reason that the Hubble can operate outside of the atmosphere of Earth.  Trying to make significant space exploration via telescopes from the terrestrial surface of planet Earth is very difficult.  That very thing that keeps us alive, our own Earth’s atmosphere presents a serious distraction from being able to see deeper and further into space. While many times those who would not fund space exploration have tried to cut funding for the Hubble, the operation of this telescope is just too important to astronomers and to the scientific well being of mankind and our planet not to continue to use the Hubble, or its next natural successor.
skandal video anggota dpr skandal video anggota dpr Reviewed by Unknown on 5/18/2012 01:44:00 PM Rating: 5

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