It is also used for the difference between the observed position of an object (minor planet or comet) and the position calculated from an orbit.
该术语也用于描述观测的某天体(小行星或彗星)的位置与轨道计算值之间的差别。
In Astrometry, the term is applied to the difference between the observed position (or magnitude) of a reference star and the position (or magnitude) listed in the star catalog.
在天文上,本术语指的是观测的参考星的位置(或星等)与星表上的该星的位置(或星等)的差值。
He carefully observed the shrug of one man's shoulders, the position of another's hands, the scowl on one face and the frown on another.
他仔细观察一个男人的耸肩、另一个人手的位置、一个人脸上的怒容和另一个人的皱眉。
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