language-icon Old Web
English
Sign In

Cardinal point

The four cardinal directions, or cardinal points, are the directions north, east, south, and west, commonly denoted by their initials N, E, S, and W. East and west are perpendicular (at right angles) to north and south, with east being in the clockwise direction of rotation from north and west being directly opposite east. Points between the cardinal directions form the points of the compass. The intercardinal (also called the intermediate directions and, historically, ordinal) directions are northeast (NE), southeast (SE), southwest (SW), and northwest (NW). The intermediate direction of every set of intercardinal and cardinal direction is called a secondary intercardinal direction, the eight shortest points in the compass rose that is shown to the right (e.g. NNE, ENE, and ESE).

[ "Acoustics", "Optoelectronics", "Optics", "WIYN Observatory", "Readout integrated circuit", "infrared focal plane array", "Conjugate focal plane", "Focal Plane Arrays" ]
Parent Topic
Child Topic
    No Parent Topic