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What term refers to the point in the sky which appears directly above the observer?
Wiki User
∙ 12y ago
Zenith
Wiki User
∙ 12y ago
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What is the point on the celestial sphere directly above observer?
The zenith.
A is the point on the celestial sphere directly above the head of the observe?
That's called the observer's "zenith".
What appears left of neon on the periodic table?
Appears directly above sodium
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 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.
Why does the pole star remain stationary?
The Pole Star appears to remain stationary because it is directly above the North Pole.
What is a polaries star?
Polaris is a star which is directly above the North Pole and therefore appears to be stationary as the Earth rotates on its axis.
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.
If an observer determines that the north star is located 30 degrees above the horizon then the observer is located at?
60 degrees north long
Is 55 degrees above the horizon very low in the sky - ie very close to the horizon?
If the horizon is on a level line of sight, a vertical line directly above the observer forms an angle of 90 degrees. 55 degrees would be quite high, being above 45 degrees.
What is the altitude of polaris above the northern horizon for observer a?
90 degrees
What is the zenith and how does the definition of the horizon relate to it?
The zenith is the direction directly above the observer. The astronomical horizon is the plane that is perpendicular to that direction, i.e. horizontal. The "true horizon", however, is the cone from the observer to the point on the earth, below which you can not "see over", so it is a small amount lower in angle. In practice, the two horizons can be considered to be the same, because the height of the observer is often small in comparision to the diameter of the earth, unless the observer is standing on a tall point, such as a mountain.
