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What is the point on the celestial sphere directly above observer?
Wiki User
∙ 8y ago
The zenith.
Geoffrey Huels
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What is the imagenary point in the sky directly above an observer on Earth?
That's the observer's 'zenith'. Since it's referenced to the "observer's head", each observer has a different zenith.
Does The celestial equator always pass directly overhead?
If you are standing at the north or south pole, then the celestial equator coincides with your horizon. At other latitudes, half of the celestial equator is above the horizon, and half is below it.
How is the altitude of the North Celestial Pole above the northern horizon related to the observer's latitude?
They're always within about 1/3 degree of each other ... close enough that they're said to be roughly equal.
What is a microscope lens placed directly above the specimen?
The microscope has two systems of lenses: the ocular lens into which the observer looks; and objective lenses placed directly above the object being observed.
What is the altitude of Polaris in Albany?
Since Polaris is (more or less) directly over the celestial pole, for any point in the northern hemisiphere it will be a number of degrees above the (theoretical) horizon equivalent to the latitude of the location you're observing it from. Its altitude above the actual horizon may be different, due the fact that the Earth isn't a perfect sphere.
A is the point on the celestial sphere directly above the head of the observe?
That's called the observer's "zenith".
What is visable on the celestial sphere directly above the observer?
The point just overhead is called the zenith. The objects visible at that point depend on the date, the time of day or night, and the observer's location.
What is the direction directly above a point on a celestial sphere?
west
What is the imagenary point in the sky directly above an observer on Earth?
That's the observer's 'zenith'. Since it's referenced to the "observer's head", each observer has a different zenith.
What is the name of the imaginary circle created by extending earth's equator to space?
The celestial equator is an imaginary circle created by extending Earth's equator into space. Zenith is an imaginary point in the sky directly above and observer on earth.
What term refers to the point in the sky which appears directly above the observer?
Zenith
What is the angle of the celestial north pole above the horizon in Frankfurt Germany?
The altitude of the celestial north pole above the northern horizon is exactlythe observer's north latitude on the earth. The center of Frankfurt is very closeto 50° North latitude.
Does The celestial equator always pass directly overhead?
If you are standing at the north or south pole, then the celestial equator coincides with your horizon. At other latitudes, half of the celestial equator is above the horizon, and half is below it.
How is the altitude of the North Celestial Pole above the northern horizon related to the observer's latitude?
They're always within about 1/3 degree of each other ... close enough that they're said to be roughly equal.
Is zenith a noun?
Yes it is. The definition of it is: 1. the point on the celestial sphere vertically above a given position or observer. or 2. a highest point or state; culmination. Yes. One way to tell if a word is a noun is, if it is a person, place, or thing. Another way is if you can put the word "the" in front of it in a sentence and it makes sense, such as "the zenith."
What is a microscope lens placed directly above the specimen?
The microscope has two systems of lenses: the ocular lens into which the observer looks; and objective lenses placed directly above the object being observed.
How did the Greeks study the stars?
The ancient Greeks developed instruments such as the armillary sphere to track the movement of objects in the plane of the celestial equator against the annual motion of the Sun. This basic device consisted of a set of graduated rings that represented important circles on the celestial sphere, such as the horizon, the celestial equator, the ecliptic, and the meridian. These rings formed a skeletal celestial sphere. A movable sighting arrangement allowed early astronomers to observe a celestial object and then read off its position using the markings on the relevant circles.Ptolemy and other Greek astronomers used the quadrant, a graduated quarter of a circle constructed to allow an observer to measure the altitude of celestial objects above the horizon. An astronomer would sight a target celestial object along one arm of the quadrant and then read off its elevation from a scale (from 0 to 90 degrees) with the help of a plumb line suspended from the center of the quarter circle. With this arrangement a celestial object just on the horizon would have an elevation of 0 degrees, while an object at zenith would have an elevation of 90 degrees.(will add more if i find out more)
