Polaris

Polaris is Earth's current northern pole star, and thus is commonly referred to as the North Star. Historically, Polaris was used by sailors and navigators to determine their current latitude while crossing oceans. Please place all questions about Polaris, the brightest star in the constellation Ursa Minor, into this category.

1,308 Questions
Stars
Polaris

Why is Polaris useful for navigation?

It is useful because it is directly above Earth's north pole so if you were traveling north, you would know what to follow

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Constellations
Big Dipper
Polaris

What is the big dipper position in polaris?

It is the last star at the tip of the handle of the Little Dipper. The Big Dipper's first two bowl stars (often called the pointer stars) point towards Polaris, but Polaris is not in the Big Dipper.

91011
Astronomy
Polaris

What is the altitude of Polaris in Albany?

Since Polaris is (more or less) directly over the celestial pole, for any point in the northern hemisiphere it will be a number of degrees above the (theoretical) horizon equivalent to the latitude of the location you're observing it from. Its altitude above the actual horizon may be different, due the fact that the Earth isn't a perfect sphere.

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Astronomy
Geography
Polaris

At which New york state location is the altitude of polaris closest to forty five degrees?

Just north of Massena, NY, there is a park called St. Lawrence State Park. Barnhart Island is part of that park. If you cross onto Barnhard Island and head for the beach, the south end of the parking lot is exactly at 45 degrees north.

The question, however, is where is the altitude of the star Polaris closest to 45 degrees. Polaris is not PRECISELY above the North Pole; it is actually about 0.6 degrees away. So depending on the time of day, Polaris could be a 45 degrees elevation anywhere within about 30 miles of the New York/Canada border.

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Science
Latitude and Longitude
Polaris

How is latitude determined by using Polaris?

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.

121314
Astronomy
New Testament
Planetary Science
Polaris

Why is polaris an important star?

Polaris or North Star, is important because at the moment it lies nearly in a direct line with the axis of the Earth's rotation "above" the North Pole - the north celestial pole - Polaris stands almost motionless on the sky, and all the stars of the Northern sky appear to rotate around it. Therefore, it makes an excellent fixed point from which to draw measurements for celestial navigation and for astrometry.

Due to the precession of the equinoxes, Polaris will not always be the pole star. Over tens of thousands of years, changes to the Earth's axis of rotation will cause it to point to other regions of the sky, tracing out a circle over 25,000 years.

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Stars
Polaris

Why Is Polaris So Important?

Because it lets us navigate without GPS.

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Stars
Polaris

What is the altitude of Polaris from Paris?

the same as Paris geographic latitude, that is about 48.5o

This is true for every place on the surface of the earth

567
Earth Sciences
Polaris

What is the altitude of polaris at Massena NY?

h

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Polaris

What is The altitude if Polaris measured by an observer atcthe tropic of cancer?

23.5

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History of Science
Polaris

In which city is polaris highest in the sky?

the north pole, but the closest city would be around the arctic circle, you'll have to find that on your own.

345
New York
Polaris

When observed from location in New York State for an entire night the North Star(Polaris) appears to?

,,

012
Astrophysics
Polaris

Why is Polaris used as a celestial reference point for earth's latitude system?

is a very bright star

567
Planetary Science
Stars
Polaris

How big is the earth compared to the sun?

The Sun is about 108 times larger than the Earth

You could fit about 1,259,712 Earths inside the Sun

232425
Astronomy
Mining
Polaris

If you traveled north would the altitude of Polaris increase?

I have noticed that it does indeed. Polaris is definitely lower on the horizon in Southern California than it is in Northern Washington. By the time one reaches the north pole, the pole star should be directly overhead--day or night.

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Polaris

Each night a passenger on the ship observed polaris. what best describes the observed changes in the altitude of polaris made by the passenger during the voyage?

Each night, the altitude decreases in the northern sky.

131415
Planetary Science
Stars
Polaris

What is special about polaris the north star?

it was the north star it lead the wise men to Jesus

001
Latitude and Longitude
Polaris

Where are you when you sight Polaris 20 degrees above the horizon?

You are somewhere on Earth at the latitude of roughly 20 degrees north.

For example, you could be in northern Chad or Sudan, southern Saudi Arabia,

Bhubaneswar in India, northern Thailand, Laos, or Vietnam, Haikou in China, on

the big Island of Hawaii, in Pachuca or Campeche in Mexico, or Guantanamo Bay

in Cuba.

123
Astronomy
Constellations
Polaris

What constellation is the pole star or North star in?

Orion

123
Astronomy
Stars
Polaris

What is the altitude of Polaris when viewed from Long Beach?

012
Astronomy
Polaris

Where do you find Polaris in the sky?

Polaris is in the constellation Ursa Minor and is the star at the and of the "Little Dipper" handle.

012
Astronomy
Stars
Polaris

What location will the highest altitude of the star Polaris be observed?

If you are at the North Pole, you'll see the star Polaris near the zenit (altitude almost 90 degrees).

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Science
Nevada
Las Vegas
Polaris

What is the altitude of Polaris viewed from las Vegas Nevada?

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Astronomy
Stars
Polaris

If Polaris cannot be seen because it is just a little below the horizon then were would you be?

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