no
Only if you are at the North Pole.
No. It will only always be CLOSE to the zenith if you happen to be at the north pole. At other latitudes, for example if you live at 30° north latitude, it will be about 30° above the horizon (to the north), if you live at 50° north latitude, it will be about 50° above the horizon, etc.
No, zenith and the North Star are not the same. The zenith is the point directly above an observer, whereas the North Star (Polaris) is a star located near the celestial North Pole in the Northern Hemisphere, making it useful for navigation.
Your latitude is 20 degrees north of the equator because Polaris is located at the celestial north pole, which is directly above the Earth's North Pole. This means that the angle between Polaris and your zenith corresponds to your angular distance north of the equator.
If you were standing at Earth's North Pole, the North Star, also known as Polaris, would be located directly in the zenith, or straight overhead. This is because Polaris is situated very close to the celestial north pole in the night sky.
You would be pretty darn close to the north pole. _______________________ Specifically, you would be within about 40 miles of the north pole. Polaris is about 2/3 of a degree away from being directly above the north pole.
Polaris is located in the Ursa Minor constellation.
The altitude of polaris for an observer is always the same as your latitude so it would be 64oN
That's the observer's 'zenith'. Since it's referenced to the "observer's head", each observer has a different zenith.
As seen from 25 degrees north latitude and ANY longitude, Polaris (the 'North Star', the 'Pole Star') appearswithin about 1/2 degree of due north and 25 degrees above the northern horizon, at any time.
i think polaris
"At zenith" means directly above your head - so high that it can't go any higher.