Abstract
A comparison of the results obtained by the Photoelectric Astrolabe Type II made in China and the Danjon Astrolabe, according to the same program for one year, has been made at the Shanghai Observatory. An analysis of the observations of these two instruments reveals that the accuracy of the Photoelectric Astrolabe Type II is higher than the Danjon Astrolabe in all respects. In this paper, data of experimental observations have been used in the analysis of the influence of the short period fluctuation of temperature on the results of time determination and in the calculation of the effect of the Lunar Tide terms on the time and latitude observations. The † αδ and the †δinδ type systematic errors of FK4 by the single instrument are given.
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