You must be 20° above (north) the equator
The device used to determine the altitude of the North Star (Polaris) is called an astrolabe. An astrolabe is an ancient astronomical instrument that allows users to measure the angle of celestial objects above the horizon. By aligning the astrolabe with Polaris, one can determine their latitude based on the altitude of the star. This technique has been used for navigation and understanding one's position on Earth.
To determine the altitude of Polaris, you can measure the angle between the horizon and Polaris using a simple instrument like a protractor or sextant. The altitude of Polaris above the horizon corresponds closely to your latitude in the Northern Hemisphere; for example, if you measure Polaris at an angle of 40 degrees above the horizon, you are approximately at 40° latitude. This relationship occurs because Polaris is positioned nearly directly above the North Pole.
The earth's axis of rotation is tilted relative to its orbit around the sun, causing Polaris to align with the earth's axis. When an observer measures the altitude of Polaris above the horizon, they can determine their latitude because Polaris' altitude corresponds to the observer's angular distance from the North Pole.
43 degrees because the altitude of polaris is equal to the latitude of utica.
The cross staff was used to determine the vessels latitude by measuring the altitude of Polaris or the Sun.
The "declination" of a star is its position in the sky on the celestial sphere, which stays the same for any observer.You may be thinking about how high Polaris is above the horizon.That's its "altitude".The altitude of Polaris always equals the latitude of the observer.That's been a great help to seafarers for centuries.Polaris has a declination of nearly 90 degrees.From Glasgow, its altitude in the northern sky is equal to the latitude of Glasgow.The latitude of Glasgow is about 55.9 degrees.So, the altitude of Polaris in Glasgow is about 55.9 degrees.
the altitude of polaris is same as the latitude of your location assuming that you are in the northern hemisphere
The altitude of Polaris in the northern hemisphere is the same as the latitude at that point on Earth. For example, if you are at 40˚N, then the altitude of Polaris would be 40.Hope I answered your question! :)
Find your latitude and that is the altitude of Polaris in the sky.
As you travel northward, the altitude of Polaris, or the North Star, increases. This is because Polaris is positioned almost directly above the North Pole, so at the North Pole, it is located directly overhead at an altitude of 90 degrees. Conversely, as you move south, the altitude of Polaris decreases.
The altitude of Polaris (the North Star) at Syracuse, NY, is approximately equal to the latitude of the location. Syracuse is located at about 43 degrees North latitude, so Polaris would be roughly 43 degrees above the northern horizon. This can vary slightly based on your exact position within the city.
The altitude of Polaris at the equator is 0 degrees. This means that Polaris is directly on the horizon and not visible at all from the equator. Polaris can only be seen in the northern hemisphere at latitudes above 23.5 degrees.