Abstract
COMETS.—M. Fayet has calculated the following extended ephemeris of Borrelly's comet for Greenwich midnight; it should be observable with powerful instruments for two or three months:—
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Our Astronomical Column . Nature 102, 512 (1919). https://doi.org/10.1038/102512a0
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DOI: https://doi.org/10.1038/102512a0