Navigational equipment

thumb|upright=1.5|alt=compass with a slit at cover and looking hole|A modern military compass, with included Sight (device)|sight device for aligningA compass is a device that shows the cardinal directions used for navigation and geographic orientation. It typically consists of a magnetized needle or another element, such as a compass card or compass rose, that pivots to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.

Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations and terrain. The term RADAR was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term radar has since entered English and other languages as an anacronym, a common noun, losing all capitalization.

drafting instrument for drawing arcs and multiplying distances

alt=Planispheric Astrolabe made of brass, cast, with fretwork rete and surface engraving|thumb|upright=1.2|North African, planispheric astrolabe. Khalili Collections|Khalili Collection. thumb|upright|A modern astrolabe made in 2013, in Tabriz, Iran.

thumb|A sextant

thumb|A hemispherical-cup anemometer of the type invented in 1846 by Thomas Romney Robinson|John Thomas Romney Robinson

system of satellites that provide autonomous geo-spatial positioning with global coverage

thumb|A Samsung Galaxy Watch A smartwatch is a portable wearable computer that resembles a wristwatch. Most modern smartwatches are operated via a touchscreen, and rely on mobile apps that run on a connected device (such as a smartphone) in order to provide core functions.

thumb|A hair tension dial hygrometer with a nonlinear scale.

thumb|Cutaway of an Anschütz gyrocompass thumb|A gyrocompass repeater

nautical charts, first made in the 13th century

continuously computed dead reckoning

automatic tracking system that uses transceivers on ships and is used by vessel traffic services

right|thumb|A simple alidade for use with a ceiling projector An alidade () (archaic forms include alhidade, alhidad, alidad) or a turning board is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, for example, to triangulate a scale map on site using a plane table drawing of intersecting lines in the direction of the object from two or more points or to measure the angle and horizontal distance to the object from some reference point's polar measurement. Angles measured can be horizontal, vertical or in any chosen plane.

navigation instrument

device that determines its position by analyzing GPS satellite signals

thumb|right|upright=1.3|Philips' Planisphere, ca. 1900

measuring instrument used primarily in navigation; type of reflecting instrument

instrument used to measure the speed of a ship at sea

portable timepiece

aircraft instrumentation system consisting primarily of multi-function electronic displays

calibrated wooden rod with sliding crosspiece used for measuring the altitude of celestial bodies or the height of distant objects

instrument in the cockpit of an aircraft that provides the pilot with information about the flight situation of that aircraft

right|thumb|250px|The celestial sphere with the [[zenith and almucantar marked in red, the horizon in green, and the path of a star or the Sun in blue.]]An almucantar (also spelled almucantarat or almacantara) is a circle on the celestial sphere parallel to the horizon. Two stars that lie on the same almucantar have the same altitude. The term was introduced into European astronomy by monastic astronomer Hermann Contractus of Reichenau, Latinized from the Arabic word ' ("the almucantar, sundial", plural: '), derived from '''' ("arch, bridge")

thumb|upright=1.2|The touch pad built on the side of the 2013 [[Google Glass can communicate with the user's phone via Bluetooth]] thumb|Man wearing a 1998 EyeTap Digital Eye Glass

thumb|right|A NAVTEX receiver prints an incoming message thumb|right|NAVTEX message for the Baltic Sea

thumbnail|An opisometer

time-signalling device

type of star chart where the map is arranged on a globe

defunct marine and aeronautical radio navigation system

electronic device to measure a craft's velocity and orientation

thumb|right|Torquetum (1568), made by Johannes Praetorius in Nuremberg thumb|right|Engraving of a Torquetum

device that senses the direction to one or multiple stars

measuring tool used in navigation and astronomy

navigation device that uses the Global Positioning System to track the device's movements and determine its geographic position

varying quantity (4, 8, 16, 32, rarely more than 32, or special value 24) or directional divisions marked on a compass

instrument used to determine the local time based on the relative positions of two or more stars in the night sky

data recording system used on vessels to comply with SOLAS Requirements

celestial navigation device that determines latitude

ancient navigational aid

radios operating in the very high frequency maritime mobile band

In the field of geodesy, Receiver Independent Exchange Format (RINEX) is a data interchange format for raw satellite navigation system data. This allows the user to post-process the received data to produce a more accurate result — usually with other data unknown to the original receiver, such as better models of the atmospheric conditions at time of measurement.

Type of hourglass used at sea

maritime traffic control system for given body of water

navigational instrument

automatic ship station- and heading-holding systems

device mentioned in the Book of Mormon; a brass ball with two spindles, one of which indicated the direction Lehi's party should travel

portable electronic product which combines a positioning capability (such as GPS) and navigation functions

Nautical navigational instrument

drafting instrument used to draw parallel lines

instruments used to ascertain the present position, speed, rotation, ... of a vehicle

ECAM

spacecraft instrument that senses the direction to the Sun

thumb|World War II Astrocompass dials and adjustments An astrocompass is a navigational tool for determining the direction of true north through the positions of various astronomical bodies. It is an evolution of earlier solar compass designs.

thumb|220px|''Curiosity's'' self-portrait shows the deck of the rover as viewed from the NavCams. Navcam, short for navigational camera, is a type of camera found on certain robotic rovers or spacecraft used for navigation without interfering with scientific instruments. Navcams typically take wide angle photographs that are used to plan the next moves of the vehicle or object tracking.

radar system

marine radar capability that can create tracks using radar contacts

navigational instrument

computing system that aids in navigation

right|thumb|Example of a roadbook A roadbook is a diagrammatic book typically used by rally co-drivers and overland travelers to navigate across uncertain terrain. Usually, the roadbook consists of several pages of tulip-diagrams, GPS co-ordinates and written instructions to assist in navigation.