Abstract
THE ROTATION PERIOD OF NEPTUNE.—J. H. Moore and D. H. Menzel have investigated this period by the spectroscopic method, using the 36-inch refractor at Lick (Pubs. Astr. Soc. Pacific, August). They placed the slit parallel to the planet's equator, as lately determined by Eichelberger and Newton from the shift in the node of the satellite; their deduced position for the planet's north pole was R.A. 295°.2, N.Decl. 41°.3, equinox 1900.0.
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Our Astronomical Column. Nature 122, 663 (1928). https://doi.org/10.1038/122663a0
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DOI: https://doi.org/10.1038/122663a0