Abstract
The Trans-Neptunian Planet.—The following observations of position have been received: those of Mar. 12 and 17 were given only to the nearest second of time in R.A.:
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Our Astronomical Column. Nature 125, 507 (1930). https://doi.org/10.1038/125507a0
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DOI: https://doi.org/10.1038/125507a0