zenith


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zenith,

in astronomy, the point in the sky directly overhead; more precisely, it is the point at which the celestial spherecelestial sphere,
imaginary sphere of infinite radius with the earth at its center. It is used for describing the positions and motions of stars and other objects. For these purposes, any astronomical object can be thought of as being located at the point where the line of sight
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 is intersected by an upward extension of a plumb line from the observer's location. Its position in the sky thus depends on the direction of the earth's gravitational field at the observer's location. The zenith is a reference point in the altazimuth coordinate systemaltazimuth coordinate system
or horizon coordinate system,
astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an observer's celestial horizon and zenith.
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; its altitude above the celestial horizon is 90°. The angular distance from the zenith to a celestial body is called the zenith distance. The nadir, directly opposite the zenith, has a zenith distance of 180°; the celestial horizon has a zenith distance of 90°.

Zenith

(religion, spiritualism, and occult)

The zenith is the point in the heavens directly overhead at any given location on Earth. It should be carefully distinguished from the midheaven (with which it is often confused).

What does it mean when you dream about a zenith?

May indicate aspiration and culmination of achievement in the world.

zenith

[′zē·nəth]
(astronomy)
That point of the celestial sphere vertically overhead.

zenith

zenith
The point on a celestial sphere directly overhead the observer. It is called the observer's zenith. An astronomical zenith is where an imaginary plumb line through the observer and the center of the earth intersects the celestial sphere. A geographical zenith is where a line perpendicular to smooth earth intersects the celestial sphere. These terms, however, are not synonymous. The point 180° from the zenith is called the nadir.

zenith

Astronomy the point on the celestial sphere vertically above an observer
References in classic literature ?
We impute it, therefore, solely to the disease in his own eye and heart that the minister, looking upward to the zenith, beheld there the appearance of an immense letter -- the letter A -- marked out in lines of dull red light.
It seemed the forest now or nothing, and I was just on the point of motioning Tars Tarkas to follow me in that direction when the sun passed the cliff's zenith, and as the bright rays touched the dull surface it burst out into a million scintillant lights of burnished gold, of flaming red, of soft greens, and gleaming whites--a more gorgeous and inspiring spectacle human eye has never rested upon.
The gondola is painted black because in the zenith of Venetian magnificence the gondolas became too gorgeous altogether, and the Senate decreed that all such display must cease, and a solemn, unembellished black be substituted.
The blue zenith is the point in which romance and reality meet.
The sun shone at the zenith, and his rays fell perpendicularly upon those lonely summits.
He was fond of comparing himself to Mahomet's coffin, attracted in two different directions by two loadstones, and hesitating eternally between the heights and the depths, between the vault and the pavement, between fall and ascent, between zenith and nadir.
But I felt that my school had reached its zenith when, weeks ago, the Duke of Holdernesse sent Mr.
Then abruptly the sky was hidden, the last vestiges of daylight gone, and he was falling rapidly in an evening twilight through a whirl of fine snowflakes that streamed past him towards the zenith, that drifted in upon the things about him and melted, that touched his face with ghostly fingers.
It was the time when the youthful Speranski was at the zenith of his fame and his reforms were being pushed forward with the greatest energy.
The perpetual midday sun poured down its torrid rays from zenith, as it had done since the beginning of Pellucidarian time--as it would continue to do to the end of it.
Wait until I come again and then, oh my flower of all England, if you have it in your heart to speak as you are speaking now the sun of my happiness will be at zenith.
Just as it was tremblingly imperative that Jerry must suddenly squat down, point his nose at the zenith, and vocalize his heart-rending woe, an idea came to him.