Latitude is going across.
Polaris (or the North Star) is almost directly above the North pole. This means that when you stand on the north pole and look directly up, you will see Polaris. This also means that when you stand at the equator and look directly north, you will see Polaris on the horizon. You can not see Polaris from the Southern Hemisphere. The angle Polaris is above the horizon is equal to the degree latitude that you are standing on. Therefore at the equator, Polaris is 0 degrees above the horizon and at the north pole, Polaris is 90 degrees above the horizon.
The altitude of Polaris is roughly equal to your north latitude. Your longitude has no effect on it.At 35 degrees south latitude, the altituide of Polaris is negative 35 degrees. In other words,it's 35 degrees below the point on the horizon due north of you, and you can't see it.
The angle of Polaris above the northern horizon is very nearly equal to your north latitude, within about 1/3 of a degree. So it's over your head when you stand at the north pole, it sits nominally on your north horizon when you stand anywhere on the equator, and if you're south of the equator, you can never see it at all.
Polaris' 'elevation' ... the angle between it and your northern horizon ... is roughly equal to your north latitude. When you are . . . . . . on the equator (zero latitude), Polaris is on your horizon; . . . in Salem Oregon, Minneapolis, Grenoble France, Torino Italy, Ploiesti Romania, Jixi China, Wakkania Japan, etc. (45 degrees north latitude), Polaris is 45 degrees above your northern horizon; . . . at the north pole (90 degrees north latitude), Polaris is directly overhead; . . . south of the equator, Polaris is due north of you but below the horizon.
You would never see Polaris there because it would always be 41 degrees or more below the northern horizon. On the other hand you can see many fine stars and constellations that are never seen in North Europe or the north of the USA and Canada.
Yes, you can see Polaris from China.
If Polaris cannot be seen because it is just below the horizon, you must be located at a latitude slightly south of the North Star's position, which is approximately 90 degrees north. Specifically, you would be at a latitude of about 89 degrees south or lower, as Polaris is only visible in the Northern Hemisphere. In this situation, you would be too far south to see Polaris above the horizon.
Sleep Paralysis
Circumpolar Constellations are those that appear to circle the North Star, Polaris. Polaris' place in the sky changes based on the viewers latitude. The closer you get to the North Pole, the higher in the sky Polaris appears, and therefore the more constellations appear to spin around Polaris.
If someone is at the horizon, they would see Polaris, also known as the North Star, located at a specific angle above the horizon depending on their latitude. In the Northern Hemisphere, Polaris is positioned nearly directly above the North Pole, so it appears higher in the sky the further north one travels. At the equator, Polaris would be right at the horizon, while in the Southern Hemisphere, it would not be visible at all.
The approximate altitude of Polaris, also known as the North Star, at Syracuse, NY, is around 43 degrees above the northern horizon. This is roughly equivalent to the latitude of Syracuse, which is approximately 43 degrees North. Therefore, you can expect to see Polaris at that angle when observing it from that location.
As you move north in the northern hemisphere, the altitude of Polaris, also known as the North Star, increases. Polaris is situated almost directly above the North Pole, so its altitude corresponds closely to your latitude. At the North Pole, Polaris is at the zenith (90 degrees), while at the equator, it is on the horizon (0 degrees). Therefore, as you travel northward, you will see Polaris rising higher in the sky.