astronomical latitude

基本解释

The present paper analyses the effect of earth tide on astronomical latitude and longitude according to theoretical formulas and calculated data.
本文從理論公式和計算數據上分析了固躰潮對天文經緯度的影響。
The question of the cause of the anomalous deviation of the results of the astronomical time and latitude determinations before a strong earthquake has been analysed in this paper.
本文分析了引起強震前天文測時測緯異常現象的原因問題，認爲這種異常主要是地下水活動引起垂線變化的結果。
In order to obtain higher measured accuracy of star's positions by the low-latitude meridian circle, it is needed to measure the astronomical refraction to the stars of different spectral types.
提出在低緯子午環上，對不同光譜型的天躰測定出天文折射，以提高星位測定的精度。