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Polaris ( Alpha Ursae Minoris) is the Pole Star or North Star. It is the brightest star in the constellation Ursa Minor. It is almost straight above Earth 's North Pole. Because of this, when it is seen from Earth, it looks like it always stays in the same place in the sky.
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Polaris: Polaris is part of a three-star system including Polaris A, Polaris Ab, and Polaris B. Of these stars, only Polaris A is bright enough to see in the night sky while a simple telescope can show us Polaris Ab. Polaris B requires a more sophisticated telescope to become visible.
Polaris (Star) Facts For Kids Summary, Structure & Formation
Polaris, also designated as α Ursae Minoris (alpha Ursae Minoris), is a variable and multiple supergiant star in the constellation of Ursa Minor . Polaris visual magnitude is 2.02, making it the 51th brightest star in the sky. Thanks to its high brightness, Polaris is clearly visible when observed from locations with dark skyes, and should be.
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The North Star or Pole Star - aka Polaris - is famous for holding nearly still in our sky while the entire northern sky moves around it. That's because it's located very close to the north.
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The Polaris star is the brightest star of the Ursa Minor constellation. It is a triple-star system with three stars. These distant stars form the north stars of the Ursa Minor constellation. North stars of the Polaris system are variable stars that decorate the northern sky. The word Polaris is a short form for Stella Polaris, which in Latin.
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Polaris, Alpha Ursae Minoris (α UMi), commonly known as the North Star, is the closest relatively bright star to the north celestial pole. It lies at an estimated distance between 323 and 433 light years (99 to 133 parsecs) from Earth and has an apparent magnitude that varies between 1.86 and 2.13.
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Polaris is a "pulsing" star, a type of star also known as a Cepheid variable, which means that it appears to vary in brightness ever so slightly — only one tenth of a magnitude — over a time.
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The North Star: Polaris Constellation: Ursa Minor Star Type: F-Class Supergiant Mass: 4.5 times the mass of the Sun Luminosity: 2,500 times brighter than the Sun Diameter: 70 million km (50 x the Sun) Temperature: 5,700 Celcius Distance From Earth: 430 light-years Rotation Period: 119 days
Polaris (North Star) Star Facts
Polaris is one of the most searched-out stars in the northern hemisphere sky. It turns out that there's more than one star at Polaris. It's really a triple star system that lies around 440 light-years away from Earth. The brightest is what we call Polaris.
Polaris (North Star) Star Facts
The North Star, Polaris, is a Cepheid variable: one whose mass, age and physical conditions generate periodic oscillations with a period proportional to the star's intrinsic luminosity.
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Polaris is a yellow-hued star, classified as a supergiant, located in the constellation Ursa Minor. Its coloration is due to its surface temperature, which is approximately 6,000 K. Stars come in a variety of colors, ranging from red to blue, depending on their surface temperature.
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Polaris is actually a triple star. It is located about 447.6 light-years from Earth and is the closest Cepheid variable.
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Polaris star color. All three stars in the Polaris system are of spectral type F. Such stars are typically white or yellow-white in color. However, their yellowish hue is very faint, so most stargazers will see Polaris as a white, medium-bright star. With the unaided eye, observers will only spot the light of the main star, a yellow supergiant.
The North Star Polaris Facts, Location, and How to Find It
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 (Star) Facts For Kids Summary, Structure & Formation
Polaris is the star nearly directly up from the North Pole hence why it is also known as the "North Star" in addition to being the "Pole Star". If you were to take a picture of the night sky so that you had star trails, If you then looked at all the photos, you would see that Polar stays still.
Polaris (Star) Facts For Kids Summary, Structure & Formation
Polaris Statistics Also Known As: Polaris A, Alpha Ursae Minoris, Pole Star, North Star Distance From Earth: 430 light years Constellation: Ursa Minor Star Type: F Class Supergiant Mass: 4.5 x Sun Luminosity: 2,500 x Sun Diameter: 44 million miles (70 million km) - 50 x Sun Temperature: 5,700C (10,300F) Age: Unknown Rotation Period: 119 days