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The optical system of the Mt John one metre telescope

Published online by Cambridge University Press:  04 August 2017

G. R. Nankivell  and
N. J. Rumsey
G. R. Nankivell
Affiliation:
Physics and Engineering Laboratory, DSIR Lower Hutt, New Zealand
N. J. Rumsey
Affiliation:
Physics and Engineering Laboratory, DSIR Lower Hutt, New Zealand

Extract

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The telescope will be used at the Cassegrain focal plane only. Two interchangeable systems of secondary optics are required to give relative apertures of:

  1. (a) f/13.5 for spectroscopy and photometry over a small field.

  2. (b) f/8 for photography over as wide a field as practicable.

Type
I. Telescopes and Instrumentation
Information
Symposium - International Astronomical Union , Volume 118: Instrumentation and Research Programmes for Small Telescopes , 1986 , pp. 101 - 102
Copyright
Copyright © Reidel 1986 

References

Harmer, G.F.W. & Wynne, C.G. (1976), Mon. Not. Roy. Astron. Soc. 177, 25P–30P, ‘A simple wide-field Cassegrain telescope’.Google Scholar
King, H.C. (1955), ‘The History of the Telescope’, (Griffin, London). See pages 374 & 377.Google Scholar
Kirkham, A.R. (1938), Scientific American 158, 374, ‘The Cassegrain telescope with spherical secondary mirror’.Google Scholar
Nankivell, G.R. (in press). PEL Report: ‘The primary mirror for the Mount John one metre telescope’.Google Scholar
Offner, A. (1978), ‘Optical Shop Testing’. (Malacara, D., Ed.; Wiley New York), pp. 444–452, ‘The Offner compensator’. (See especially pp. 449–452.) Google Scholar
Schulte, D.H., (1966), I.A.U. Symposium No. 27: ‘The Construction of Large Telescopes.’ (Crawford, D.L., Ed.; Academic Press, London & New York), p. 37.Google Scholar
Wynne, C.G. (1949), Proc. Phys. Soc. B62, 772–778, ‘Field correctors for parabolic mirrors’.CrossRefGoogle Scholar