Abstract
THE observations of Encke's comet made at the Heidel-berg Observatory deviate so strongly from the predicted places that Dr. Backlund, the director of the Pulkowa Observatory, has thought it necessary to investigate the cause. He finds that the perturbations by Jupiter, which were calculated in duplicate by H. Kamensky and Fraulein Karolikowa, have been correctly applied, so far as they depend on the first power of the disturbing force, but that in the period 1901-4 the comet approached Jupiter almost as closely as is possible, and that in consequence perturbations of the second order are very sensible. The corrections to the several elements, depending on the action of Jupiter, were as follows:—
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Encke's Comet . Nature 77, 547–548 (1908). https://doi.org/10.1038/077547b0
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DOI: https://doi.org/10.1038/077547b0