T H E DURHAM UNIVERSITY OBSERVATORY.—Mr. Harold Thomson, F.R.A.S., was appointed Hon. Director of the Observatory in succession to the late Col. Ε. H. Grove-Hills, F.R.S. In this report, he reviews the equipment and work of the observatory.
The Almucantar and the Zenith Telescope are not in present use, and indeed the bad weather conditions prevailing in Durham almost preclude their use.
The 6.4 inch refractor, used for many years by the late Mr. Charles Grover at Sir Wilfrid Peek's Observatory, has been refigured by Messrs. Cooke, Troughton and Simms, York, and the object-glass will now divide double stars down to the theoretical limit; and whilst this was at the works, the Observer made use of the Hon. Director's 5-inch Cooke refractor, and 220 observations of variable stars have been reduced and will be forwarded to the Variable Star Section of the BAA . for inclusion in the Memoirs.
Mr. Sargent also secured on May 7 an occultation of the Star BD—14°-4045 by the planet Jupiter and his results have been forwarded to Mr. L. J. Comrie at the Sproul Observatory U.S.A , .
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