In this paper, all kinds of error's influence was expounded of the sun altitude method often used on the railway upon determining heavenly body azimuth.
本文论述了铁路上常用的太阳高度法测定天体真方位角各类误差的影响。
In the evenings that follow, Mercury will slowly diminish in brightness, but it will also slowly gain altitude as it gradually moves away from the vicinity of the Sun.
在接下来的晚上水星的亮度将慢慢减弱但是依然会随着逐渐离开太阳而获得高度。
The earliest instrument for determining latitude was the quadrant, which measured the altitude of the polestar or the noonday sun.
早期测定纬度的仪器是象限仪，测量北极星或正午太阳的高度。
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