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Q.

What is a sextant?

Tags: science
Asked by Raaj Shekhar, 01 Apr '13 01:01 pm
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Answers (8)

1.

A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the object's altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight and it is an essential part of celestial navigation.
Source: wiki
Answered by LIPSIKA, 01 Apr '13 01:04 pm

 
  
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2.

Just like T square device used by engineering students, architects, civil engineers for measuring angles
Answered by Manoj Joshi, 01 Apr '13 01:08 pm

 
  
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3.

An instrument for measuring angular distances used especially in navigation to observe altitudes of celestial bodies as in ascertaining latitude and longitude...
Answered by Annes, 01 Apr '13 01:08 pm

 
  
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4.

It is an instrument to measure height and angle.
Answered by amitava duttamajumdar, 01 Apr '13 01:07 pm

 
  
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5.

All it is is a device that measures the angle between two objects.

The sextant makes use of two mirrors. With this sextant, one of the mirrors ( mirror A in the diagram) is half-silvered, which allows some light to pass through. In navigating, you look at the horizon through this mirror.
Answered by arun mishra, 01 Apr '13 01:05 pm

 
  
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6.

Sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the object's altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight and it is an essential part of celestial navigation. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. Common uses of the sextant include sighting the sun at solar noon and sighting Polaris at night, to find one's latitude (in northern latitudes). Sighting the height of a landmark can give a measure of distance off and, held horizontally, a sextant can measure angles between objects for a position on a chart.[1] A sextant can also be used to measure the lunar distance between the moon and another celestial object (e.g., star, planet) in order to determine Greenwich time which is important because it can then be u ...more
Answered by rajan, 01 Apr '13 01:04 pm

 
  
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7.

A sextant is an instrument used to measure the angle between any two visible objects
Answered by Quest, 01 Apr '13 04:36 pm

 
  
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