WebAug 9, 2024 · Polaris . Polaris or Alpha Ursae Minoris (Alp UMi) is the brightest naked eye star in the constellation Ursa Minor.With an apparent magnitude of 1.97v, Polaris the … WebJan 24, 2024 · The main star boasts a luminosity nearly 2,500 times that of our sun, ... Although it is one of the most-observed stars, Polaris is a bit of a stellar mystery, as Space.com reported in 2024.
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 magnitude that fluctuates around 1.98, it is the brightest star in the constellation and is readily … See more 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 See more 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 distance estimates were often slightly less, and research based on … See more • Extraterrestrial sky (for the pole stars of other celestial bodies) • Polar alignment • Polaris Australis See more Variability Polaris Aa, the supergiant primary component, is a low-amplitude Population I classical Cepheid variable See more The modern name Polaris is shortened from New Latin stella polaris "polar star", coined in the Renaissance when the star had approached the celestial pole to within a few degrees. See more • Polaris is the brightest star in the constellation of Ursa Minor (upper right). • Big Dipper and Ursa Minor in relation to Polaris • A typical Northern Hemisphere star trail with Polaris in the center. See more WebLuminosity (bolometric) 1,260 ... The main star, Polaris A, is a giant with 4.5 times the mass of the Sun and a diameter of 45 million kilometers. It is a classic Cepheid variable, … lac la biche to red water
What is a Polaris star luminosity? - Answers
WebSep 7, 2024 · 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 … http://collinspolarisstarslife.weebly.com/polaris-main-sequence.html WebOct 8, 2024 · Spica, Alpha Virginis (α Vir), is a blue-white spectroscopic binary star located at a distance of 250 light years from Earth in the constellation Virgo. With an apparent magnitude of 0.97, it is the brightest star in Virgo and the 16th brightest star in the sky. It is only slightly fainter than Altair in the constellation Aquila, Acrux in Crux ... lac la biche to smoky lake