The sixth part of a circle.
An instrument used in navigation which determines altitude of the sun or stars
An astronomical instrument for measuring angles, primarily altitudes of celestial bodies, to determine latitude.
navigational instrument used for measuring longitude and latitude
Navigational instrument, formed from one-sixth of a circle.
an instrument used to measure angles, used by old explorers to work out where they were.
Navigation instrument measuring the angular distance of the sun, a star, etc. from the horizon.
optical instrument used in navigation for measuring angles, especially of celestial bodies
sex-tant An instrument with a graduated arc of 60° used in navigation and surveying for measuring the angular distance of objects by means of mirrors.
a unit of angular distance equal to 60 degrees
a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
a delicate instrument
a more sophisticated instrument than its predecessor which was known as a quadrant
a navigational instrument for determining latitude by measuring the angle between a heavenly body and the horizon
a navigational tool used to determine ones position in the ocean
an instrument for measuring angular distances, especially used in navigation to observe altitudes of celestial bodies (as in ascertaining latitude and longitude)
a precision instrument for celestial navigation
a very important mathematical instrument for navigating at sea
a very refined instrument for measuring angles
an instrument used to find the angular distances between objects.
an instrument used for measuring altitudes and angles up to 120o to determine the position of a ship
A hand-held instrument used for navigation and surveying when it is not convenient to use a theodolite or transit. A sextant is used to measure the angle at the point of observation between a celestial object and the horizon, or between two objects. The angle is measured on a graduated arc covering 1/6 of a full circle or 60 °, hence the name "sextant".
An instrument that measures angular distances from fixed celestial objects.
The sextant is an astronomical instrument that is used to determine latitude for navigation. It does this by measuring angular distances, like the altitude of the sun, moon and stars. The sextant was invented independently in both England and America in 1731. The sextant replaced the astrolabe. The word sextant comes from the Latin word meaning "one sixth."
A navigational tool used to determine position by measuring the angle of celestial bodies above the horizon
A navigational instrument used to determine the vertical position of an object such as the sun, moon or stars. Used with celestial navigation.
Navigation instrument measuring solar and stellar heights. Used on land since 16th century â€“ the naval version was developed in 1757 by Captain John Campbell. The name refers to a sixth of a circumference â€“ 60Â°. Thus the sextant can measure angles to 120Â°. The octant operates in a similar way but measures smaller angles.
An optical sighting device that determines the angle between a celestial body and the horizon. Used for navigation. See also satnav, gps.
an instrument for measuring vertical angles between two points or between some point and the horizon. It is shaped like a sixth of a circle and is a combination of telescope, mirrors and a scale to measure the angle.
A sextant is a navigational instrument used for measuring the altitudes of celestial bodies.
An instrument, combining telescope and graduated quadrant, used for measuring angular distances, esp. the altitude of sun, moon and stars. Used at sea to determine latitude and longitude.
An instrument of navigation indicating a master mariner. See also 'Compass'
A sextant is a measuring instrument generally used to measure the angle of elevation of a celestial object above the horizon. Making this measurement is known as sighting the object, shooting the object or taking a sight. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart.