Homework Help

What is Polaris, aka the North Star?What is Polaris, aka the North Star?

user profile pic

nanosy | Student, Grade 9 | eNoter

Posted June 10, 2010 at 5:14 AM via web

dislike 1 like
What is Polaris, aka the North Star?

What is Polaris, aka the North Star?

5 Answers | Add Yours

user profile pic

pohnpei397 | College Teacher | (Level 3) Distinguished Educator

Posted June 10, 2010 at 5:18 AM (Answer #2)

dislike 0 like

Polaris is simply the name for the star that is also called the North Star.  It is located in the constellation that we (at least in America) call Ursa Minor or the Little Dipper.  It is also in the Big Dipper -- Ursa Major.

Polaris is called the North Star or, also, the pole star.  This is because of the fact that it appears to be pretty much directly above the North Pole.  This means that it does not appear to move in the same way that most of the stars appear to move as the Earth rotates.  Because of this, the star seems to stay still and is always in the North -- that is why it makes a good aid to finding directions.

user profile pic

besure77 | Middle School Teacher | (Level 1) Senior Educator

Posted June 10, 2010 at 5:59 AM (Answer #3)

dislike 0 like

The North Star was given the name Polaris because it seems to sit directly above the North Pole. The North Star is fairly easy to find and has been used by mariners to help guide them for hundreds of years. The North Star is also the last star on the Little Dipper (Ursa Minor). It is the 40th brightest star in the sky and 2200 times brighter than the sun, it just doesn't seem as bright because it is so far away (430 light years from Earth). Polaris will remain the North Star until approximately 12000AD, at which time it be supplanted by Vega.

user profile pic

giorgiana1976 | College Teacher | Valedictorian

Posted June 10, 2010 at 7:20 AM (Answer #4)

dislike 0 like

North Star (Polaris Star) is a star in the constellation Ursa Minor, being situated very close to the celestial north pole (declination 89°15'51"). Because of this, and because it is easily visible to naked eye (apparent magnitude 1.97), it is used for guidance, indicating with a pretty good accuracy (less than 1 °) the direction towards North.

Since the North Star does not fall below the horizon, it became a symbol of the Swedish royal maximum period of expansion of the kingdom, in the 17th and 18th centuries. North Star is depicted in relief with five points.

user profile pic

lit24 | College Teacher | Valedictorian

Posted June 10, 2010 at 7:24 AM (Answer #5)

dislike 0 like

Polaris as you have correctly pointed out is nothing else but the North Star. It was first noticed by the British astronomer William Herschel. It is called so because it appears to remain almost fixed exactly above the North Pole. It is the brightest star in the constellation Ursa Minor. Its of great use in navigation because its angle of elevation can be used to determine the latitude of a place. However, it can be seen only in the Northern hemisphere and cannot be used for navigation south of the Equator. It is a moderately bright star visible to the naked eye and lies about 430 light years from planet earth.

user profile pic

litteacher8 | Middle School Teacher | (Level 1) Distinguished Educator

Posted February 28, 2012 at 2:45 PM (Answer #6)

dislike 0 like
The North Star Polaris has quite a famous history in literature and culture. It is also called the Pole Star, referring to the North Pole. Since it always appears due North, it has been used to navigate by and developed a mythical following.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes