Abstract
For many of our observations we shall need a small telescope. Our instrument is a refractor, with a 4 cm achromatic objective and a focal distance of about 50 cm; consequently the aperture is f/12,5.
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References
Danjon, A. et Couder, A.: 1935, Lunettes et telescopes, Paris.
Johnson, B. K.: 1960, Optics and Optical Instruments, New York.
Roth, G. D.: 1960, Handbuch für Sternfreunde, Berlin.
Sidgwick, J. B.: 1956, Amateur Astronomer’s Handbook, London.
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© 1969 D. Reidel Publishing Company, Dordrecht, Holland
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Minnaert, M.G.J. (1969). Optics of a Small Telescope. In: Practical Work in Elementary Astronomy. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3414-2_19
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DOI: https://doi.org/10.1007/978-94-010-3414-2_19
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