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大天区面积多目标光纤光谱望远镜（ＬＡＭＯＳＴ），是一架反射Ｓｃｈｍｉｄｔ望远镜．它固定地斜卧在地面上，主光轴在子午面内南端高起与地面成２５°角．观测天区－１０°δ＋９０°，天体经过子午圈前后观测１．５小时．有三种跟踪运动：改正板在地平式机架上绕高度轴和方位轴的转动以及焦面的转动．这些运动都没有盲区．本文导出了全部角位移、角速度和角加速度的公式．对上述天区和观测时间作了计算，高度角的最大变化仅０．３４°，重力变化引起的变形极小，改正板方位角和焦面的转动速度小于或等于周日运动速度，且转动相当均匀．发现并证明了当中心天体的赤纬δ＝９０°－－Ａ＝＋２４．６°（Ａ为光轴倾角，为观测点的地理纬度）时，焦面的转动恒等于零．这些研究表明ＬＡＭＯＳＴ的装置在跟踪运动和重力变形方面有一系列重要的优点．
Large sky area multi-objective fiber spectral telescope (LAMOST), is a reflection Schmidt telescope. It is fixedly laid on the ground with its main optical axis at an angle of 25 ° to the ground at the southern tip of the meridian plane. Observation area -10 ° δ +90 °, celestial bodies through the meridian before and after the observation 1.5 hours. There are three types of tracking movements: the correction plate rotates about the height axis and the azimuth axis on a gantry type frame, and the rotation of the focal plane. There are no blind spots in these movements. This paper derives all the formulas for angular displacement, angular velocity and angular acceleration. The above sky area and observation time are calculated. The maximum change of height angle is only 0.34 °. The deformation due to gravity change is extremely small. The rotation speed of azimuth and focal plane of the correction plate is less than or equal to the weekday moving speed, Pretty uniform. It was found and proved that the rotation of the focal plane is always equal to zero when the declination of the central celestial δ = 90 ° -Δ-A = + 24.6 ° (A is the inclination of the optical axis and 地 is the geographical latitude of the observation point). These studies show that LAMOST devices have a number of important advantages in tracking motion and gravitational deformation.