First of all, we need to recall that none of this motion is real. It appears to us as if
the stars are circling in the sky, only because the Earth is spinning, carrying us along
with it, and spinning the direction in which our eyes point, once a day.
Unless you happen to be standing on the Earth's equator, you can only see one Celestial
pole ... either the north one or the south one, corresponding to which of the Earth's
hemisphere's you're standing in.
It seems to me that the stars appear to circle bothCelestial poles. If you open
a camera aimed at the night sky, and leave it open for a while, you always get
nice circular arcs traced by the stars. No matter which Celestial pole is visible
in the picture, the arcs of the stars will appear centered at it.
Each star APPEARS to circle both celestial poles daily.
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.
They are the constellations at the celestial north & south poles - Ursa Minor (the little bear) is at the celestial North Pole and the Southern Cross is a constellation near the celestial South Pole.
The north celestial pole is a certain point in the sky, near a star called Polaris, around which all the stars appear to rotate. It's the point in the sky that's directly over your head when you stand at the Earth's north pole.
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.
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.)
The Arctic is the north celestial pole, or the region of the Earth above the Arctic Circle, which includes the North Pole.
For example, if you live at a latitude of 50° north, the circumpolar stars will be all stars that are up to 50° around the celestial north pole. As another example, if you live at a latitude 30° south of the equator, the circumpolar stars will be all those that are in a circle up to 30° around the celestial south pole.
The Arctic Circle
Yes. The North Star is aligned with the celestial north pole.
The Arctic Circle
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.
north celestial pole
Latitude is not based on any celestial observation, but rather the geographical location - how far north or south the place is - with respect to the equatorial circle. You could say it is based on terrestrial observation, if you like.
The Arctic Circle around the North Pole and the Antarctic Circle around the South Pole.
no they move counter clock wise
the earth roatates on a celestial pole (the line running from the north to south pole), and revolves around the sun
Yes. For any point on Earth that is north of the equator, the north celestial pole is above the horizon.