[DOC] [TLE] Celestial navigation - Wikipedia [PAR] Celestial navigation, also known as astronavigation, is the ancient art and 
science of position fixing that enables a navigator to transition through a space 
without having to rely on estimated calculations, or dead reckoning, to know their 
position. Celestial navigation uses "sights," or angular measurements taken 
between .... Navigators measure distance on the globe in degrees, arcminutes 
and... [DOC] [TLE] The History of the Sextant [PAR] So what do navigators need to find their position on the earth's surface by 
observing ... navigators need an angle-measuring instrument, a sextant, to 
measure the ... The mariner's quadranta quarter of a circle made of wood or 
brass--came into ... by using his quadrant to take the altitude of the sun as it came 
to it's greatest... [DOC] [TLE] The American Practical Navigator/Chapter 16 - Wikisource, the free ... [PAR] Feb 26, 2013 ... The marine sextant measures the angle between two points by ... only if its arc 
was 60 in length, or 1/6 of a circle, permitting measurement of angles from 0 to 
120. ... on the index arm is a vernier, H, that reads in fractions of a minute. .... 
what appears in the horizon glass to be the lower limb is in fact the... [DOC] [TLE] Navigation - Sextant [PAR] We have seen how navigators could find their latitude for many centuries but 
ships, ... Using this technique, the navigator at sea could measure the angle 
between the ... an eighth of a circle, to the sextant, a sixth of a circle, that could 
measure up to ... apparatus used to divide the scale into degrees and fractions of 
degrees. [DOC] [TLE] PDF (2963 K) - Scientific Research Publishing [PAR] Sep 27, 2016 ... Two Portuguese aerial navigators, Gago Coutinho and Sacadura Cabral, 
crossed for ... Plath under the name of System Admiral Gago Coutinho. ... 
Professional sextants use a click-stop degree measure and a worm ... journey; in 
its first flight stage, nearly seven hours after take-off, the engine stopped due. [DOC] [TLE] The History of the Sextant - Tripod [PAR] So what do navigators need to find their position on the earth's surface by ... 
Finally, navigators need an angle-measuring instrument, a sextant, to measure 
the angle of ... The mariner's quadrant-a quarter of a circle made of wood or brass
--came ... by using his quadrant to take the altitude of the sun as it came to it's 
greatest... [DOC] [TLE] Mark 3 Sextant Manual - Davis Instruments [PAR] studying its pages, you will learn how to operate your sextant, how to find the alti- 
tude of the ... To read fractions of a degree, find the division of the vernier which is 
in alignment .... To measure the sun's altitude, stand facing the sun with the 
sextant in your right ... A nautical mile is equal to one minute of arc of a great 
circle. [DOC] [TLE] Sextant - Topics [PAR] A sextant is a doubly reflecting navigation instrument used to measure the angle 
... of this angle, the altitude, is known as sighting (or shooting) the object, or 
taking a sight. ... Navigators' sextants were primarily used for celestial navigation. 
... 1  of a circle (60), hence its name (sextns, -antis is the Latin word for "one 
sixth"). [DOC] [TLE] Navigating at the Speed of Satellites [PAR] It's About Time  students act out the part of the GPS signal traveling to the ... 
someone with a GPS receiver to measure distance to the satellite. .... Orbit  The 
path an object in space follows as it circles the Earth. ... o If you were traveling 
100 years into the future, would you take a sextant or a GPS ..... Its About Time. 
Name:... [DOC] [TLE] The earth and earth coordinates - Esri Press [PAR] horizontal lines marking the equator (forming the circle around the earth that is ... 
second of latitude and longitude, we have specified its location to within 100... [DOC] [TLE] 07.03.09

Question: A navigator's sextant takes its name from the fact that it measures this fraction of a circle
Answer: one-sixth