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Log

PagePlateClassObjectR.A.DecStartObs H.A.Obs DecStopExpDateMiscellaneous
17216098α Aquarii22 06-0.821 440 16 E-0.621 50Oct 14 1905With revolving plate apparatus which has new clock work. i.e. adjust before the occultation of α Tauri. September the clock movement was replaced by anther old one which is stronger. Revolutions of plate is about 80 sec. Aperture through which star shines is same as for earlier plates, about 2mm. 10 sec signals.
17216099α Lyrae22 354 01 W+38.622 41Oct 14 1905x 16099 Same app. Plate revolving at great speed. 10s signals.
17216100α Lyrae23 084 35 W+38.623 13Oct 14 1905x 16100 Same app. arranged as for last plate. Coarse wire placed over middle of small objective. Star set to over side of aperture & clock stopped to permit it to trail through field. Object, to test apparatus for observing transits.