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The main advantages of a refractor are that it is easy to uphold, easy to use, and is capable of global observing as well as stargazing. One problem with refracting telescopes is that there is a frequency requirement for refraction, so the amount of refraction at each surface of the lens depends on the wave length. So, different wavelengths focus at slightly different points. It causes objects like stars to be surround... ... middle of paper ... ...ope, and use the telescope simulator. We have learn there are many different kind of telescope like Refractors, Reflectors, and Catadioptic.
Deuterium Abundance. [online] Hyperphysics.phy-astr.gsu.edu. Available at: http://hyperphysics.phy-astr.gsu.edu/hbase/astro/deuabund.html Van Flandern, T. C. (2002). The Top 30 Problems with the Big Bang. Meta Research Bulletin 11, 6-13.
Astronomers are looking at their computers where the Hubble Space Telescope is sending what it is seeing. They say that a star may be born! Without the Hubble telescope it would be harder to learn and discover new things. The Hubble Space Telescope is a large telescope in space. To launch the Hubble Telescope, It’s really expensive but it helps us out a lot.. To launch the Hubble Telescope it took about 1.5 million dollars.
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