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What are the celestial poles?
The north and south celestial poles are the two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the imaginary rotating sphere of stars called the celestial sphere. The north and south celestial poles appear permanently directly overhead to an observer at the Earth's North pole and South pole respectively. As the Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other points appear to rotate around them, completing one circuit per day.
What celestial line is a product of the Earth's rotation?
The celestial line that is a product of Earth's rotation is the celestial equator. It is an imaginary line located above Earth's equator and is created as a result of Earth's rotation on its axis. It divides the celestial sphere into northern and southern hemispheres.
Where on earth would you go to place a celestial pole on your zenith?
The celestial pole is directly above Earth's geographic poles, so to place a celestial pole at your zenith you would need to be at either the North Pole or the South Pole. At these locations, the celestial pole would be directly overhead, making it appear as if the axis of Earth's rotation extended into the sky.
From what location on Earth is the The celestial equator not visible?
The north celestial pole is not visible from any point on Earth's surface south of the equator. This is always true. The north celestial pole is the point in the sky directly above the Earth's north pole. Even though the north celestial poles moves about in the sky, it remains invisible everywhere in the southern hemisphere. The north celestial pole moves around in a circle in the sky as the Earth's axis wobbles. Each wobble takes about 23 thousand years.
How much of the overall sky is north of the celestial equator?
Half. The other half is south of the celestial equator.It depends on the where you're looking from (at the equator it is half and half). If you are at latitude 30 degrees north, then about 2/3 of "your" sky is north of the celestial equator (30 degrees north means that you are one-third of the way north from the equator to the North Pole.)
What is the celestial pole?
The celestial pole is the point in the sky directly above the Earth's North or South Pole. The North Celestial Pole is located near the North Star (Polaris), while the South Celestial Pole does not have a bright star near it. Stars appear to rotate around these points due to Earth's rotation.
Latitude in a definition?
the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes
Is The south celestial pole is located at a declination of -90 degrees?
The Celestial Poles are the infinite extension of the North and South Poles from the Earth into space. The North Star or Polaris, is within 1 degree of the North Celestial Pole. There is no equivalent star for the South Celestial Pole.
What is the extreme north or south point of the Earth's axis called?
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The ends of the earths axis are imaginary points known as?
The ends of the earth's axis are imaginary points known as celestial poles. There are north and south celestial poles of the earth.
What are Celestial Poles?
The north and south celestial poles are the two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the imaginary rotating sphere of stars called the celestial sphere. The north and south celestial poles appear permanently directly overhead to an observer at the Earth's North pole and South pole respectively. As the Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other points appear to rotate around them, completing one circuit per day.
What are the celestial poles?
The north and south celestial poles are the two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the imaginary rotating sphere of stars called the celestial sphere. The north and south celestial poles appear permanently directly overhead to an observer at the Earth's North pole and South pole respectively. As the Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other points appear to rotate around them, completing one circuit per day.
What celestial line is a product of the Earth's rotation?
The celestial line that is a product of Earth's rotation is the celestial equator. It is an imaginary line located above Earth's equator and is created as a result of Earth's rotation on its axis. It divides the celestial sphere into northern and southern hemispheres.
Where on earth would you go to place a celestial pole on your zenith?
The celestial pole is directly above Earth's geographic poles, so to place a celestial pole at your zenith you would need to be at either the North Pole or the South Pole. At these locations, the celestial pole would be directly overhead, making it appear as if the axis of Earth's rotation extended into the sky.
What is the difference in declination angles between the north and south celestial poles?
The Earth orbits on its axis. It isn't a physical axis; there is no metal rod through the Earth, but we can calculate it pretty well. If you were to extend that imaginary axis straight out from the physical poles, this would point to the "celestial poles". Early astronomers thought of the sky as a solid crystal sphere, and all the stars were at the same very great distance away. We know now that isn't true; all the stars are at their own distances, all different. But we still sometimes speak of the "celestial sphere", and the celestial poles, and the celestial equator. This helps us to visualize where we are in the galaxy, and where all the stars are in relationship to each other.
From what location on Earth is the The celestial equator not visible?
The north celestial pole is not visible from any point on Earth's surface south of the equator. This is always true. The north celestial pole is the point in the sky directly above the Earth's north pole. Even though the north celestial poles moves about in the sky, it remains invisible everywhere in the southern hemisphere. The north celestial pole moves around in a circle in the sky as the Earth's axis wobbles. Each wobble takes about 23 thousand years.
What splits the sky in two from north to south?
There is an imaginary plane through the Earth that splits the world into "north" and "south". The circle around the Earth where that plane meets the Earth's surface is called the "equator". In astronomy, we extend that plane into space; this is the "celestial equator". With geography on the Earth, we measure this in latitude north or south of the equator. In astronomy, we call it "declination", but it's the same idea.
