Define zenith and nadir
Since the concept of being below is itself somewhat vague, scientists define the nadir in more rigorous terms. Specifically, in astronomy, geophysics and related sciences (e.g., meteorology), the nadir at a given point is the local vertical direction pointing in the direction of the force of gravity at that location. The term can also be used to represent the lowest point that a celestial object r… WebApr 4, 2024 · nadir (n.) nadir. (n.) late 14c., in astronomy, "imaginary point of the celestial sphere vertically opposite to the zenith of the sun; the inferior pole of the horizon," from Medieval Latin nadir, from Arabic nazir "opposite to," in nazir as-samt, literally "opposite direction," from nazir "opposite" + as-samt "road, path" (see zenith ).
Define zenith and nadir
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Webzenith, point on the celestial sphere directly above an observer on the Earth. The point 180° opposite the zenith, directly underfoot, is the nadir. Astronomical zenith is defined by gravity; i.e., by sighting up a plumb line. If the line were not deflected by such local irregularities in the Earth’s mass as mountains, it would point to the geographic zenith. WebMar 16, 2024 · Noun [ edit] zenith ( plural zeniths ) ( astronomy) The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir . Antonyms: nadir, perigee. 1638 Herbert, Sir Thomas Some years travels into divers parts of Asia and Afrique.
Webzenith. [astronomy] In astronomy, the point on the celestial sphere directly above an observer. Both the zenith and nadir lie on the observer's meridian; the zenith lies 180 degrees from the nadir, and is observable. WebZenith and nadir [The zenith is the] point on the celestial sphere directly above an observer on the Earth. The point 180 degrees opposite the zenith, direclty underfoot, is …
Web11. There are 3 directions in any orbit. The typical convention is: Nadir- This is the direction towards the center of the planet, straight down. Oposite to NADIR is the Zenith. Velocity Vector- Direction of movement, … WebMar 23, 2024 · Zenith noun. the highest point reached by a given celestial object. ‘the sun was well past the zenith’; Nadir noun. the point below the observer that is directly …
WebApr 4, 2024 · nadir. (n.) late 14c., in astronomy, "imaginary point of the celestial sphere vertically opposite to the zenith of the sun; the inferior pole of the horizon," from …
WebThe meaning of CELESTIAL HORIZON is the great circle on the celestial sphere midway between the zenith and the nadir. electric bikes in missoula montanaWebZenith Meaning- Nadir Defined - Zenith Examples - Nadir Explained - British English PronunciationZenith - Nadir - Zenith Meaning- Nadir Examples- Zenith in a... food spices imagesWebDefine zeniths. zeniths synonyms, zeniths pronunciation, zeniths translation, English dictionary definition of zeniths. n. 1. The point on the celestial sphere that is directly above the observer. 2. The upper region of the sky. ... nadir - Zenith derived from Arabic samt ar-ras, "the way or road above one's head"; ... food spinning in microwaveWebzenith - WordReference English dictionary, questions, discussion and forums. All Free. ... nadir. a highest point or state; culmination. Arabic samt road, incorrectly read as senit by medieval scribes (compare Arabic samt ar-rās road … food spices scame in indiaWebnadir, a term used in astronomy for the point in the heavens exactly opposite to the zenith, the zenith and nadir being the two poles of … electric bikes in newport beachWebDefinition of nadir in the Definitions.net dictionary. Meaning of nadir. What does nadir mean? ... The direction opposite of the nadir is the zenith. Nadir also refers to the downward-facing viewing geometry of an orbiting satellite, such as is employed during remote sensing of the atmosphere, as well as when an astronaut faces the Earth while ... foodspin 50 statesWebZenith means the high point — it comes from astronomy, where it describes the highest point in an arc traveled by a star or a planet or another celestial body. ... Zenith — and its opposite, nadir — have been appropriated by non-astronomers and are used to describe high and low points in non-astronomical contexts. For example, you can say ... electric bikes in newcastle