Abstract
HALLEY'S COMET, 1909c.—Some interesting measures of Halley's comet, made with the micrometer of the Yerkes 40-inch refractor, are published by Prof. Barnard in No. 605 of the Astronomical Journal. With this large telescope the comet was quite an easy object, and the measures should be good; but, as Prof. Barnard suggests, the edges of such a nebulous body are not easy to set on.
Article PDF
Rights and permissions
About this article
Cite this article
Our Astronomical Column . Nature 82, 319–320 (1910). https://doi.org/10.1038/082319a0
Issue Date:
DOI: https://doi.org/10.1038/082319a0