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37 degrees north latitude

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12y ago
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14y ago

Approximately 49 degrees. Polaris is almost, but not quite, directly above the north pole of the Earth; it is off by about 0.6 degrees. For many purposes, (and in the northern hemisphere only!) you can read your latitude by measuring the angular altitude of Polaris above the horizon. With a simple correction that is dependent on the time and date, you can calculate your precise latitude.

Please note that this works only in the NORTHERN hemisphere, above about 5 degrees north. South of that, Polaris is not visible. Unfortunately, there is no comparable celestial object anywhere close to the south pole.

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14y ago

Approximately 89.5 degrees. Polaris is almost, but not quite, directly above the north pole of the Earth; it is off by about 0.6 degrees. For many purposes, (and in the northern hemisphere only!) you can read your latitude by measuring the angular altitude of Polaris above the horizon. With a simple correction that is dependent on the time and date, you can calculate your precise latitude.

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13y ago

If you are standing at latitude 58 degrees north, then the North Celestial Pole is 58 degrees

above your northern horizon. Polaris describes a small circle around the North Celestial Pole,

about 0.69 degrees away from it. So Polaris' altitude varies between 57.31 and 58.69 degrees.

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14y ago

The altitude of Polaris at the Equator is 0 degree, because the Latitude of the Equator is 0 degree. That means that, at the Equator, Polaris is on the horizon (due North of course). Now, if you are at the North Pole, Polaris will be directly above your head because the Latitude of the Pole is 90 degrees, hence the altitude of Polaris above the horizon is 90 degrees. Same thing anywhere in the northern hemisphere; for instance if you are in a location the Latitude of which is 55 degrees, you will see Polaris at an altitude of 55 degrees above the horizon.

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12y ago

You can't see Polaris from the equator.

Theoretically, if there were no atmosphere, you ought to be able to - Polaris would be right on the horizon. But since we live on a planet with air (and thank goodness for that!) and air absorbs and scatters light, we really can't see it. Even so bright a star as the Sun, as close as it is, is dimmed so much at the horizon that you can look right at it.

And Polaris is actually a fairly dim star; of the 73 stars used for celestial navigation, it is the dimmest. If it weren't for Polaris being almost directly above the north pole, it would be entirely unremarkable.

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14y ago

An observer at latitude 37 degrees north would see Polaris due north and 37 degrees above the horizon.

(Plus or minus about 1/2 degree and making a little tiny circle, since Polaris is not exactly at the celestial pole.)

37 degrees north latitude:

Santa Cruz, CA
Four corners, AZ, CO, UT, NM
Liberal, KS
Miami, OK
Joplin, MO
Cairo, IL
Bowling Green, KY
Hampton, VA
Faro, Portugal
Grenada, Spain
Algiers, Algeria
Tunis, Tunisia
Kalamata, Greece
Antalya, Turkey
Dahuk, Iraq
Rasht, Iran
Termez, Uzbekistan
Jinan, China
Ch'ongju, South Korea
Nagano, Japan

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11y ago

His location would be somewhere very near 40 degrees north latitude.

That could be places in Portugal, Spain, Italy, Greece, Turkey, Armenia, Azerbaijan,

Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, China, North Korea, Japan, California,

Nevada, Utah, Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, Pennsylvania, and New Jersey.

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15y ago

Polaris, the "north pole star", is with 1/2 degree of the north celestial pole. So if you measure the altitude of Polaris with a sextant, you can read your latitude directly.

So if the altitude is 32 degrees, your latitude is 32 degrees.

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15y ago

Polaris will be pretty close to overhead or in celestial nave lingo the observed Alt should be 90 degrees

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Q: At what latitude would an observer on earth find the altitude of polarris to be 37 degrees?
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What is the latitude of an observer if the altitude of polaris is 43 degrees?

If the altitude of Polaris is 43 degrees above the northern horizon, then the observer is located somewhere within roughly 1/2 degree of 43 degrees north latitude.


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The angle of the altitude of Polaris is equal to the observer's latitude. However, this is only true if you are in the Northern Hemisphere. For example, at the North Pole it is directly overhead and at the equator it is on the horizon and at 45 degrees North it is 45 degrees above you.


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