The observed position. The position obtained by the intersection of two or more position lines obtained from the observation of heavenly bodies is known as the observed position. It is shown on the chart as a dot surrounded by a circle, with “Obs” and the time written next to it.…
The ultimate goal of the navigator’s activities is to produce a record of his voyage, be it either in the form of a paper or digital chart. This includes the planning and execution of the voyage and the monitoring thereof. Because of the international nature of sea voyages and the…
Compass bearings The angle between the direction of a place or object and compass north is called the compass bearing. As previously stated it is distinguished by the suffix (C) after the bearing. Like true and magnetic bearings it is written in three figure notation. In order to change a…
Variation Variation is defined as the angle between the true and magnetic meridians. It is said to be easterly if the direction of magnetic north lies to the east of the true meridian and westerly if it lies to the west. Variation can b e obtained from a special isogonic…
