ameter 1.0 arcsec, calculate the zenith distance at which serious losses are incurred. Assume the refractive index of the atmosphere is n = 1.00027

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If the field plate has diameter 24 arcmin, and the fibre entrance has di-
ameter 1.0 arcsec, calculate the zenith distance at which serious losses are
incurred. Assume the refractive index of the atmosphere is n = 1.00027
and ignore any seeing effects.
Transcribed Image Text:If the field plate has diameter 24 arcmin, and the fibre entrance has di- ameter 1.0 arcsec, calculate the zenith distance at which serious losses are incurred. Assume the refractive index of the atmosphere is n = 1.00027 and ignore any seeing effects.
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