Abstract
THE ASTROPHOTOGRAPHIC CATALOGUE.—At the last meeting of the Royal Astronomical Society, the Astronomer Royal gave some particulars relating to the progress at Greenwich of the international photographic star catalogue. A special staff for dealing with this work has been organised under Mr. Hollis, and already 130 of the plates taken for the catalogue have been measured. It is estimated that about 180 plates can be measured, and 160 of them reduced in the course of a year, so that at this rate the section allotted to Greenwich, comprising about 150,000 stars, will be completed in five or six years. Assuming that the other sixteen co-operating observatories are proceeding equally well, the world will soon be in possession of a colossal catalogue, comprising between two and three million stars.
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Our Astronomical Column. Nature 53, 351–352 (1896). https://doi.org/10.1038/053351a0
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DOI: https://doi.org/10.1038/053351a0