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W Cygni is a semi-regular variable red giant star, 618 light-years from Earth.It has a maximum magnitude of 5.10 and a minimum magnitude 6.83; its period of 131 days. It is a red giant ranging between spectral types M4e-M6e(Tc:)III, [ 52 ] NML Cygni is a red hypergiant semi-regular variable star located at 5,300 light-years away from Earth.
Betelgeuse is a red supergiant star in the constellation of Orion. It is usually the tenth-brightest star in the night sky and, after Rigel, the second-brightest in its constellation. It is a distinctly reddish, semiregular variable star whose apparent magnitude, varying between +0.0 and +1.6, has the widest range displayed by any first ...
So a star of magnitude 5.0 is 2.512 times brighter than one of magnitude 6.0. A star that is magnitude 1.0 is then 100 times as bright as a star of magnitude 5.0. ... The second quarter moon the ...
Hydra is the largest constellation, covering more than 1 ⁄ 32 of the night sky and 19 times the area of Crux, the smallest constellation. The International Astronomical Union (IAU) designates 88 constellations of stars.
The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight , starlight , and airglow , depending on location and timing.
Camelopardalis is a large but faint constellation of the northern sky representing a giraffe.The constellation was introduced in 1612 or 1613 by Petrus Plancius. [3] [1] Some older astronomy books give Camelopardalus or Camelopardus as alternative forms of the name, but the version recognized by the International Astronomical Union matches the genitive form, seen suffixed to most of its key stars.
Stars in constellations can appear near each other in the sky, but they usually lie at a variety of distances away from the Earth. Since each star has its own independent motion, all constellations will change slowly over time. After tens to hundreds of thousands of years, familiar outlines will become unrecognizable. [13]
10.43 – 11.1 [3] 15.6 [4] Also the nearest star to the Solar System. ... Also the sixth-nearest stellar system to the Solar System and the brightest star in the ...