Def of sextant
WebThe first known mural sextant was constructed in Ray, Iran, by Abu-Mahmud al-Khujandi in 994. To measure the obliquity of the ecliptic, al-Khujandī invented a device that he called al-Fakhri sextant (al-suds al Fakhrī), a reference to his patron, Buwayhid ruler, Fakhr al Dawla (976–997). This instrument was a sixty-degree arc on a wall aligned along a meridian … WebOct 20, 2024 · It is “let in” flush with the “lower limb” of the sextant and is graduated from 0° to 120° “on” the arc and from 0° to -5° “off” the arc. The index arm. The index arm is mounted on a circular base plate and is free …
Def of sextant
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WebDefine sextant. sextant synonyms, sextant pronunciation, sextant translation, English dictionary definition of sextant. n. 1. A navigational instrument containing a graduated … WebThe sextant is an extremely accurate navigational tool and can precisely measure an angle to the nearest ten seconds (as in degrees, minutes, and seconds). A Marine sextant is an instrument for measuring the angular …
WebIn math ., the sixth part of a circle; an instrument like a quadrant, but having an arc of only 60 degrees, or the sixth part of a circle, used at sea and by astronomers for measuring … WebApr 23, 2009 · A sextant is used by a navigator to find his position on the earth. There are two classes of sextantsmarine and air. A typical marine sextant consists of a triangular frame, with a curved scale, marked in degrees of arc, at the bottom. Mounted on the frame are an eyepiece and a piece of glass, called the horizon mirror, half of which is ...
WebJan 1, 1990 · 23% and 32% for sextant and 12-core biopsies, respectively (17). Shim et al. evaluated 516 Korean men aged 40–79 years (mean age 64.1±7.8 years) who had not previously undergone prostate biopsy (18). The CDR for the standard sextant approach was 22%, compared to 28% for the 12-core approach. In a large review of 87 studies involving
Websextant translate: （船舶或飛機精確定位用的）六分儀. Learn more in the Cambridge English-Chinese traditional Dictionary. package flights to cubaWebSEXTANT meaning: an instrument used to determine the position of a ship or airplane by measuring the positions of the stars and sun The Britannica Dictionary mobile search … package firmwareWebsextant biopsy: A series of six biopsies from the right and left upper, middle and lower lobes of the prostate, which increases diagnostic yield and the likelihood of detecting prostate cancer. package flights to puerto ricoWebDec 16, 2024 · sexton: [noun] a church officer or employee who takes care of the church property and performs related minor duties (such as ringing the bell for services and … jerry knapp natural gas emergencyWebJun 11, 2024 · Sextant. A sextant is a navigational instrument that uses a telescope and an angular scale to calculate latitude and longitude. Making a measurement with a sextant … package flight and hotelWebThe sextant is a navigational instrument used to measure angles. In celestial navigation, it measures the angle between the horizon and a celestial body (the sun, moon, planets or stars), and in terrestrial … package flights to adelaideWebsextant. 1. an optical instrument used in navigation and consisting of a telescope through which a sighting of a heavenly body is taken, with protractors for determining its angular distance above the horizon or from another heavenly body. 2. a sixth part of a circle having an arc which subtends an angle of 60°. package flights to hawaii