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What are the points on the celestial sphere that are directly overhead at earths poles?
Wiki User
∙ 11y ago
They're called the celestial poles and they move over time (due to Earth's precession).
If the axis of the Earth were extended into space, the North Pole would point almost exactly at the giant star appropriately called Polaris, in the tail of the Little Bear or handle of the Little Dipper. The South Pole doesn't have so convenient a marker; it would fall several degrees away from the long axis of a small bright asterism known as Crux, the Southern Cross. The nearest visible star to the south celestial pole is a very dim star called Sigma Octantis, and even it's not really all that close to the pole (about a degree away).
By 4000 AD, the celestial south pole will be very near the significantly brighter (though, at about magnitude 4, still quite a bit dimmer than Polaris) Gamma Chameleontis. At that time the north celestial pole will be very close to Gamma Cephei, a magnitude 3.2 star (also dimmer than Polaris, which is magnitude 2).
Unfortunately, between now and then, the celestial poles won't point to any stars in particular. By about 3000AD, there will be no notable stars very near either of them.
Wiki User
∙ 11y ago
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3 The rotation of the Earth's axis is at degrees from the celestial pole?
The earth's axis of rotation points directly at the celestial pole.
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.
The sun is on the celestial equator at the times of the?
The equinoxes are the two points on the celestial equator there the ecliptic(the sun's apparent annual path through the stars) crosses it.Note that the equinoxes are not events or dates. They are points on the mapof the stars.
Where does the sun pass overhead?
The furthest south the Sun will ever be overhead is the imaginary line known as the Tropic of Capricorn - lying at 23° 26' 22" south of the Equator. It is overhead there on the December solstice - usually December 22 26′ 22″north of the The furthest north it will ever be overhead is the similar line, the Tropic of Cancer, lying at 23° 26' 22" north of the Equator. It is overhead there at the June Solstice - usually June 21. In between these dates it appears overhead at points between these two lines - moving towards the Equator - where it is overhead at the equinoxes - March 20th and Spetember 22.
What is the origin of the word 'equinox'?
1) Either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length 2) (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic known as equinox yash patel
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.
3 The rotation of the Earth's axis is at degrees from the celestial pole?
The earth's axis of rotation points directly at the celestial pole.
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 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.
The points on the earths surface directly above the focus of an earthquake?
epicenter
What is the tilt of the earths axis of rotation?
Approximately 23°. As a matter of interest, the Tropics of Cancer and capricorn are 23° from the Equator, these representing the most northerly/southerly points on the Earth where the Sun can be directly overhead. This is due to that tilt of the earth.
What does the earths axis point directly to in outer space?
Hi it points to da Sun. da
The place where the extended axis of the Earth would touch the celestial sphere is called the celestial what?
That is also called the axis; the "end-points" of this axis are called the celestial poles.
Who discovered the celestial pole?
The north and south celestial poles are two imaginary points and therefore cannot be "discovered".
How is it possible for an asteroid or comet to cut directly across earths orbital path but not hit earth?
The Earth and the asteroid could be at a different points in the path.
The sun is on the celestial equator at the times of the?
The equinoxes are the two points on the celestial equator there the ecliptic(the sun's apparent annual path through the stars) crosses it.Note that the equinoxes are not events or dates. They are points on the mapof the stars.
The intersection points between the ecliptic and the celestial equator are called?
Those would be the "equinoxes".
