Abstract
THE central area of the image of a star in stellar photographs consists of a cluster of silver granules disposed radially in rapidly decreasing numbers, so that the circular or nearly circular boundary is ill defined. This want of definition is necessarily responsible for a large part of the probable error in the microscopical measurements of the star's co-ordinates.
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POLLARD, A. Use of Diffraction Effects in Measurements of Stellar Photographs. Nature 121, 246 (1928). https://doi.org/10.1038/121246a0
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DOI: https://doi.org/10.1038/121246a0
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