Abstract
WE present here new optical positions of sixteen radio sources with small angular diameters which are suitable as calibration sources. Optical positions for all these sources have been published previously by several authors1–7, but those presented here are completely independent of all previous work in that they do not depend on any catalogue position or proper motions of reference stars.
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MURRAY, C., TUCKER, R. & CLEMENTS, E. Optical Positions of Radio Sources. Nature 221, 1229 (1969). https://doi.org/10.1038/2211229a0
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DOI: https://doi.org/10.1038/2211229a0
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