Abstract
CAMBRIDGE OBSERVATORY REPORT.—Sir Robert Ball records the completion and publication of the zone 25° to 30°, which forms part of the “Catalog der Astronomischen Gesellschaft.” In it are the places of 14,464 stars, the result of about 47,570 observations, the Observatory having been engaged in this work during the last quarter of a century. The complete catalogue containing the individual observations is very nearly ready for press, and will be printed as soon as the volume already in the printer's hands has been issued. Mr. Hinks has undertaken a detailed comparison of the places of 671 stars in the Cambridge and Berlin Catalogues lying in the zone + 24° 50′ to + 25° 10′. The result seems to have been very satisfactory, the differences of declination being very small and apparently accidental, wiiile in the case of the right ascensions small but systematic differences depending on the magnitude of the stars have been found. The designs for the new photographic telescope have been completed, and the instrument is being pushed forward; it is mentioned that probably the new building to contain it will be erected during the course of the summer. With regard to the Newall telescope, Mr. H. F. Newall tells us in his report, which is attached, that he has met with great difficulties in bringing his spectroscope into successful working order. The discrepancies were, however, securely traced, and the necessary alterations made, with the result that the photographs now obtained are considered very satisfactory. Some of the results already obtained, with regard to the motion of some stars in the line of sight, are given by him in his report, from which we make the following extract:—
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Our Astronomical Column. Nature 56, 279 (1897). https://doi.org/10.1038/056279a0
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DOI: https://doi.org/10.1038/056279a0