Look up sextant in Wiktionary, the free dictionary. Sextant may refer to: Sextant (circle), a circular sector equal to one sixth of a circle, or a third...

Former constellations are old historical Western constellations that for various reasons are no longer widely recognised or are not officially recognised...

contemporary astronomy, 88 constellations are recognized by the International Astronomical Union (IAU). Each constellation is a region of the sky bordered...

the astronomical sextant, an instrument that Hevelius made frequent use of in his observations. Sextans is a medium sized constellation bordering Leo to...

The Lockheed Constellation ("Connie") was a propeller-driven airliner powered by four 18-cylinder radial Wright R-3350 engines. It was built by Lockheed...

with a second hand or digit, an almanac with lunar corrections, and a sextant are used. With no knowledge of time at all, a lunar calculation (given...

combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England...

directly. A mural sextant was constructed in Ray, Iran, by Abu-Mahmud al-Khujandi in 994. Ulugh Beg constructed the "Fakhri Sextant" in Samarkand that...

period (Sanchir) with a sextant of 40 meters radius. Mongolians are particularly attached to the Great Bear. This constellation is limited for them to...

selected by NASA to proceed to formulation phase in April 2013. NICER-SEXTANT uses the same instrument to test X-ray timing for positioning and navigation...

in the Northern Hemisphere by sighting the pole star (Polaris) with a sextant and using sight reduction tables to correct for height of eye and atmospheric...

by the navigator. The first is to obtain a line of position by use of a sextant observation and the techniques of celestial navigation. Multiple lines...

In essence (in Western astronomical terms), a nakshatra simply is a constellation. Every nakshatra is divided into four padas (lit. "steps"). The starting...

Cassiopeia A (Cas A) (listen) is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies...

increased his accuracy by increasing the length of his sextant; the so-called Fakhri sextant had a radius of about 36 meters (118 feet) and the optical...

in creating the star catalogue. It provides examples of the use of the sextant and quadrant by Hevelius, in tandem with known positions of the sun, in...

zodiacal armillary, largest azimuth quadrant of steel and the trigonal sextant. The basement of Uraniborg included an alchemical laboratory, with 16 furnaces...

XPNAV-1 is the first pulsar navigation mission launched into orbit. SEXTANT SEXTANT (Station Explorer for X-ray Timing and Navigation Technology) is a...

developed from angle measurements with quadrants and the unaided eye, through sextants combined with lenses for light magnification, up to current methods which...

reputation as "the founder of lunar topography", and described ten new constellations, seven of which are still used by astronomers. According to the Polish...

difference is hardly detectable with indirect viewing based devices like sextant equipped with a vernier, and impossible with more traditional tools like...

Other purchases included octant, equatorial, two theodolites, 10-foot sextant. The observatory was expanded by architect Marcin Knackfus in 1782–1788...

Solar Calculation Details". Biegert, Mark (21 October 2015). "Correcting Sextant Measurements for Dip". Math Encounters (blog). Retrieved 22 September 2017...

bissextus, semisextile, sestet, sestina, Sext, sextain, sextan, sextans, sextant, sextary, sextic, sextile, sextillion, siesta, sixte †sextula sextul- sibilus...

Bird invented the first sextant. This replaced the Davis quadrant and the octant as the main instrument for navigation. The sextant was derived from the...

astronomical thinking until the modern era. Most of the most prominent constellations known today are taken from Greek astronomy, albeit via the terminology...

independently operated timepiece on board so that, in combination with a sextant, the ship’s position could be determined by celestial navigation. The Marine...

from the original on 11 December 2016. Retrieved 20 September 2016. "The Sextant – 'In 1992, Doolittle Raid revisited'". Archived from the original on 29...

bissextus, semisextile, sestet, sestina, Sext, sextain, sextan, sextans, sextant, sextary, sextic, sextile, sextillion, siesta, sixte sibil- hiss Latin...

dials that measure ecliptic coordinates of stars, planets and all 12 constellation systems) Shastansh Yantra (next to Vrihat Samrat Yantra) This instrument...