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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. With an apparent magnitude that fluctuates around 1.98, it is the brightest star in the constellation and is readily visible to the naked eye at night.
Polaris, 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. Polaris is actually a triple star. It is located about 447.6 light-years from Earth and is the closest Cepheid variable.
9 Σεπ 2019 · Polaris is the brightest star in Ursa Minor and the closest to the north celestial pole. It is a triple star system with a yellow supergiant, a white dwarf and a main sequence star, and a variable Cepheid.
28 Ιουλ 2014 · Learn about Polaris, the brightest star in Ursa Minor constellation and the closest star to the North Celestial Pole. Find out how to locate it, its history, and its role as a navigational tool.
28 Ιουλ 2021 · Polaris, also known as the North Star, is the brightest star near the north celestial pole, which marks true north. Learn how to locate Polaris using the Big Dipper and why it's not always the North Star.
Polaris is the North Star, located in the constellation Ursa Minor, near the Little Dipper. Learn how to locate it, its distance, its triple star system, and its role as a Cepheid variable star.
20 Ιαν 2020 · Polaris is the brightest star in the constellation of Ursa Minor. It is a triple star system and currently, it is our North Star or Pole Star. This title is given to stars that are close to the North Pole – something that changes through the passing of years due to Earth’s movement.
