International Journal of Astrophysics and Space Science
Volume 2, Issue 4, August 2014, Pages: 56-65
Received: Jun. 25, 2014;
Accepted: Aug. 15, 2014;
Published: Aug. 20, 2014
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C. I. Onah, Department of Physics, Federal University of Technology, Owerri, Nigeria
C. M. Ogudo, Department of Physics, Federal University of Technology, Owerri, Nigeria
Most people see the telescope as the things for the movies, the science geeks and the rich and affluent, but are these feelings for real? This paper on the design and construction of an optical refracting telescope which is aimed at producing a low cost and portable telescope with less or no aberration effects using the materials we see around us every day goes a long way to answer the question that the telescope is for everybody that loves astronomy. Overall implementation of this work involves knowledge of the physics of optics; lenses to be precise. As a case study I used a double convex lens and the eyepiece of a microscope for the construction of the mini refractor telescope, my hypothesis is that using a double convex is better than using a Plano-convex because the two curved surfaces will cancel out the aberration effect of the individual sides. The resultant telescope was tested during the night and during the day and was used to focus objects at a distance of about 50m from the person with less aberration effect.
C. I. Onah,
C. M. Ogudo,
Design and Construction of a Refracting Telescope, International Journal of Astrophysics and Space Science.
Vol. 2, No. 4,
2014, pp. 56-65.
Dick, P. (2005). www.mtbparker.com.Retrieved 15-02-2014
Dickinson, T. (2011), SkyNews: the Canadian magazine of Astronomy & stargazing, 17(2), 36.
Elliot, R. S. (1966), Electromagnetism, McGraw-Hill Company Inc. New York. 138-153
Gary, S. (2010). A 16cm; f/5 refractor, Sky and Telescope, 119(5), 70.
Gary, S. (2011). A 16cm f/6 refractor, Sky and Telescope; 121(5), 64
Hetcht, E. (1987). Optics, Adelphi University, 2nd Edition. Addison-Wesley Publishing Company, Canada. 174
Journal on Refracting Telescope - a Closer look. (March 2013), Retrieved 05-06-2013
Meyer-Arendt, J. R. (1972). Introduction to Classical and Modern Optics 3rd Edition. Prentice-Hall Inc. New Jersey, USA. 122-126,159
Keiner, L.E., (2011) Coastal Carolina University @ www.unwittingvictims.com, the electromagnetic spectrum. Retrieved 16-02-2014
King, H. C., ed. (1955). The History of Telescopes, Charles Griffin and co. Ltd, London, 74
McGraw-Hill Dictionary of Scientific and Technical Terms, (2013). McGraw-Hill Company Inc., New York. 6E
Mullins Mark, (1993), A Truly Economical Telescope, Sky and Telescope, 91-92
Oxford Dictionary of Science, 5th Edition (2005). Oxford University Press Inc. New York, United States.
Schroeder, P. (2009). In Defense of a Cheap Scope, Sky and Telescope, 118(3), 86
Smith F. G., Thompson J. H., (1988), McGraw-Hill Company Inc. New York. 91 – 125
Subrahmanyam, N., Brij Lal, Avadhanulu, M.N. (2007). Textbook on Optics, S. Chand & Company Ram Nagan, New Delhi. 173