Abstract
COMET HOLMES (1892 III.).—Prof. Keeler, in speaking of the hypothesis that this comet has been produced by a collision between two asteroids, says that the character of the spectrum has little to support this view. He accounts for the brightening on January 16 by supposing that an increase in the number of reflecting particles in the space surrounding the comet took place, i.e. by an increase of density, which might result from a contraction following the previously observed expansion of the comet, or, which is more in accordance with the observations, from fresh emanations from the nucleus (Astronomy and Astrophysics for March).
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Our Astronomical Column. Nature 47, 518–519 (1893). https://doi.org/10.1038/047518a0
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DOI: https://doi.org/10.1038/047518a0