Abstract
IV. THE next point to which Mr. Grubb refers is one to which much interest attaches. It is now a long time ago since Sir J. Herschel investigated the effects of differently shaped apertures upon the images of stars. The figure shows the effects they produce due to diffraction.
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LOCKYER, J. The Modern Telescope 1 . Nature 17, 225–226 (1878). https://doi.org/10.1038/017225a0
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DOI: https://doi.org/10.1038/017225a0