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#celestial #equinox #navigation *Switch On Subtitles* The study of celestial sphere explained in this video is very crucial for deck officer to understand the basics of celestianavigation and to learn the basic terminology used during the ship navigation. The basic theory of the celestial navigation method is the usage of the measurement altitude of celestial bodies associated with the estimated ship position in order to find out the parameters of the line of position equation (LOP), after that, the equation system for ship position is solved by computer software or plotting on the chart. The celestial sphere can be considered to be infinite in radius. This means any point within it, including that occupied by the observer, can be considered the centre. It also means that all parallel lines, be they millimetres apart or across the Solar System from each other, will seem to intersect the sphere at a single point, analogous to the vanishing point of graphical perspective. All parallel
