(c) Used in its prime focus configuration, the Russian BTA telescope, with a 6.05 m parabolic primary mirror, has a focal length of 24.0 m. If a coma corrector is not employed, calculate the linear diameter of the "useful field" on this telescope, i.e. the diameter on the focal plane within which the coma blur is less than 1 arcsecond.
(c) Used in its prime focus configuration, the Russian BTA telescope, with a 6.05 m parabolic primary mirror, has a focal length of 24.0 m. If a coma corrector is not employed, calculate the linear diameter of the "useful field" on this telescope, i.e. the diameter on the focal plane within which the coma blur is less than 1 arcsecond.
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Transcribed Image Text:(c) Used in its prime focus configuration, the Russian BTA telescope, with a 6.05 m parabolic
primary mirror, has a focal length of 24.0 m. If a coma corrector is not employed, calculate
the linear diameter of the "useful field" on this telescope, i.e. the diameter on the focal plane
within which the coma blur is less than 1 arcsecond.
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