Other
Scientific paper
Jan 1958
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1958natur.181..181c&link_type=abstract
Nature, Volume 181, Issue 4603, pp. 181 (1958).
Other
Scientific paper
DURING the Atlantic crossing on Research Yacht Princess Waimai in 1954, to increase the accuracy of navigation astronomical sights were taken, as a rule, in series of observations: the noon sight series, extending usually for about an hour, with the Sun's culmination in its middle, 9 a.m. and 3 p.m. series, extending for about 20 min. Observations were taken about every minute. In all, 46 noon sight curves were obtained and 72 others, all in good weather conditions, within the tropics. The sextant used was a Henry Hughes instrument, with a recent class A National Physical Laboratory certificate. The height of the eye varied for different series of sights between 6 ft. and 10 ft.; estimated accuracy of observations within +/-0.5 min. of arc.
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