Merriman, Mansfield, 1848-1925 · New York Wiley · leaf 126
ngtheir mean, a fair determination of azimuth may be obtainedby one nights work. To secure the elimination of the instrumental errors of thetransit more completely, one half of the pointings on the starmay be made by looking at its reflection in a dish of mercuryplaced near the objective end of the… … 44. AZIMUTH BY POLARIS AT ANY HOUR-ANGLE. 123 zon. If a sidereal chronometer is at hand the time shouldbe noted by it, as thus the reduction of local mean solar timeto sidereal time is avoided. Azimuth by Polaris, April 29, 1897. Watch Time P.M. Tel. Readings on Mark. Readings on Star. Data. £>…
Geodesy · Surveying
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
