polaris star constellation - EAS

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    Ursa Minor
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    Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinized to Alpha Ursae Minoris) and is commonly called the North Star or Pole Star.
    Polaris is easily visible to the unaided eye, but not exceptionally bright. It is the brightest star in the constellation Ursa Minor, but only the 48th brightest star in the sky. This, however, does not mean that it is not particularly luminous.
    Polaris is approximately 430 light years from Earth and is the brightest star in the constellation of Ursa Minor. Polaris is a three star system comprising of the supergiant Polaris A and two smaller companions.
    Polaris is a main star in the constellation Ursa Minor and makes up the constellation outline. Based on the spectral type (F7:Ib-IIv SB) of the star, the Polaris colour is yellow to white. Polaris is the 48th brightest star in the night sky and is the brightest star in Ursa Minor based on the Hipparcos 2007 apparent magnitude.
    Polaris is located in the constellation Ursa Minor, which contains the group of stars that make up the “Little Dipper.” Polaris is the star in the end of the Little Dipper handle. Often, however, the Little Dipper is not very bright and can be challenging to find.
    Polaris is the brightest star in the constellation Ursa Minor, Latin for “lesser bear.” You might recognize Ursa Minor more easily as the little dipper. However, the little dipper, while quite recognizable, is not a true constellation.
    Polaris, also called Alpha Ursae Minoris, Earth ’s present northern polestar, or North Star, at the end of the “handle” of the so-called Little Dipper in the constellation Ursa Minor.
    Ursa Minor contains one star with a confirmed planet and has no Messier objects. The brightest star in the constellation is Polaris, the North Star (Alpha Ursae Minoris), with an apparent magnitude of 1.97. There is one meteor shower associated with the constellation: the Ursids.
    The two stars on the end of the Dipper's "cup" point the way to Polaris, which is the tip of the handle of the Little Dipper, or the tail of the little bear in the constellation Ursa Minor. Locate Polaris using the two "pointer stars" on the end of the Big Dipper's cup.
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    How long has Polaris been the North Star?
    So, Polaris is currently on a 26,000-year reign of the north star title. Polaris is the brightest star in the constellation Ursa Minor, Latin for “lesser bear.”
    naturenoon.com/polaris-star-facts/
    What is the brightest star in the constellation Polaris?
    It is classified as a classical Population I (metal-rich) Cepheid variable and is the nearest star of this kind to Earth. Polaris is easily visible to the unaided eye, but not exceptionally bright. It is the brightest star in the constellation Ursa Minor, but only the 48th brightest star in the sky.
    www.star-facts.com/polaris/
    How do you find the Polaris constellation?
    To locate Polaris, all you have to do is to find the Big Dipper pointer stars Dubhe and Merak. These two stars outline the outer part of the Big Dipper’s bowl. Simply draw a line from Merak through Dubhe, and go about five times the Merak/Dubhe distance to Polaris. If you can find the Big Dipper, you can find Polaris.
    earthsky.org/brightest-stars/polaris-the-present-day-north …
    What is the meaning of the constellation Polaris?
    It is the old name for the constellation Ursa Minor, derived from the Greek κυνόσουρα, meaning “the dog’s tail.” The constellation was associated with a dog, not a bear, in ancient times. In Hindu Puranic literature, Polaris was known as Dhruva, which means “immovable” or “fixed.”
    www.star-facts.com/polaris/
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    Polaris - Wikipedia

    https://en.wikipedia.org/wiki/Polaris

    Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinized to Alpha Ursae Minoris) and is commonly called the North Star or Pole Star. With an apparent visual magnitude that fluctuates around 1.98, it is the brightest star in the

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    Polaris Aa is an evolved yellow supergiant of spectral type F7Ib with 5.4 solar masses (M☉). It is the first classical Cepheid to have a mass determined from its orbit. The two smaller companions are Polaris B, a 1.39 M☉ F3

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    Variability
    Polaris Aa, the supergiant primary component, is a low-amplitude Population I classical Cepheid variable, although it was once thought to be a

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    The modern name Polaris is shortened from New Latin stella polaris "polar star", coined in the Renaissance when the star had approached the

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    • Polaris is the brightest star in the constellation of Ursa Minor (upper right).
    Big Dipper and Ursa Minor in relation to Polaris

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    Extraterrestrial sky (for the pole stars of other celestial bodies)
    Polar alignment
    Polaris Australis

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    Many recent papers calculate the distance to Polaris at about 433 light-years (133 parsecs), based on parallax measurements from the Hipparcos astrometry satellite. Older

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  4. Polaris: The North Star - Constellation Guide

    https://www.constellation-guide.com/polaris-the-north-star

    28-07-2014 · Polaris, also known as the North Star, Alpha Ursae Minoris or Star of Arcady, is the brightest star in Ursa Minor constellation. It is the closest bright star to the North Celestial Pole. The pole marks true north, which makes the North Star important in navigation, as the star’s elevation above the horizon closely matches the observer’s latitude.

  5. What is the North Star and How Do You Find It? – NASA ...

    https://solarsystem.nasa.gov/news/1944/what-is-the-north-star-and-how...

    28-07-2021 · Polaris, known as the North Star, sits more or less directly above Earth's north pole along our planet's rotational axis. This is the imaginary line that extends through the planet and out of the north and south poles. Earth rotates around this line, like a spinning top.

  6. Polaris (North Star) | Star Facts

    https://www.star-facts.com/polaris
    • Polaris is a triple star system consisting of the yellow supergiant Polaris Aa and two white (spectral type F) main sequence stars, Polaris Ab and Polaris B. Polaris Aa and Ab are in close orbit with each other and Polaris B is orbiting the pair. Polaris Aa has the spectral classification F7Ib. It is a supergiant star with 5.4 solar masses and a radius 37.5 times that of the Sun. It is 1,…
    Xem thêm trên star-facts.com
    • Distance: 323-433 light years (99-133 parsecs)
    • Proper motion: RA: 198.8 ± 0.20 mas/yr
    • Parallax: 7.54 ± 0.11 mas
    • Radial velocity: 17 km/s
  7. Polaris – Constellations of Words

    https://www.constellationsofwords.com/polaris

    The pole star, Polaris, is the main star of “the small Bear”, situated on the tail, has a Saturn nature, combined with qualities of Sun and Venus. It might seem strange to include this fixed star here, as its latitude is about 60° and therefore placed far outside of the ecliptic in which the planets move.

  8. Polaris Star Facts | Solarsystemquick.com

    https://www.solarsystemquick.com/universe/polaris-star

    Polaris is approximately 430 light years from Earth and is the brightest star in the constellation of Ursa Minor. Polaris is a three star system comprising of the supergiant Polaris A and two smaller companions. The two companion stars, Polaris Ab and Polaris B, are both yellow-white dwarfs with similar surface temperatures to their giant neighbor.

  9. 10 Fascinating Facts About Polaris (The North Star)

    https://naturenoon.com/polaris-star-facts

    Polaris is the brightest star in the constellation Ursa Minor, Latin for “lesser bear.” You might recognize Ursa Minor more easily as the little dipper. However, the little dipper, while quite recognizable, is not a true constellation. We call these almost-constellations asterisms. #4 The THREE North Stars? Polaris is not simply a single star.



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