polaris star constellation - EAS
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Polaris - Wikipedia
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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Xem thêmPolaris 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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Xem thêmVariability
Polaris Aa, the supergiant primary component, is a low-amplitude Population I classical Cepheid variable, although it was once thought to be a...
Xem thêmThe 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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Xem thêm• Polaris is the brightest star in the constellation of Ursa Minor (upper right).
• Big Dipper and Ursa Minor in relation to Polaris...
Xem thêm• Extraterrestrial sky (for the pole stars of other celestial bodies)
• Polar alignment
• Polaris Australis...
Xem thêmMany 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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Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SAMục này có hữu ích không?Cảm ơn! Cung cấp thêm phản hồi Polaris: The North Star - Constellation Guide
Hình ảnh của Polaris Star constellation
bing.com/imagesWhat is the North Star and How Do You Find It? – NASA ...
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