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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 ...
- 0.60
- 5.4M☉
28 de jul. de 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.
Polaris, or commonly known as The North Star, is located almost directly above the North Celestial Pole marking the way due north. Polaris is not the brightest star in the night sky. However, it is easily located making it a reliable gauge of North for travelers without a compass.
20 de fev. de 2023 · The North Star, or Polaris, is a very special star that sits almost directly at the Earth’s North celestial pole. It’s the only bright motionless star in the sky. It’s a more consistent navigational tool than a magnetic compass.
9 de set. de 2019 · 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.
- 323-433 light years (99-133 parsecs)
- RA: 198.8 ± 0.20 mas/yr
- 7.54 ± 0.11 mas
- 17 km/s
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.
24 de jan. de 2022 · Polaris or the North Star is a star that appears almost directly above the Earth's rotational axis. As the Earth turns, every other star seems to spin around the axis, tracing out a circle in...
