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Arcturus is the brightest star in the northern constellation of Boötes. With an apparent visual magnitude of −0.05, [2] it is the fourth-brightest star in the night sky, and the brightest in the northern celestial hemisphere.
Arcturus is a red giant star in the Northern Hemisphere of Earth 's sky and the brightest star in the constellation Boötes (the herdsman). Arcturus is also among the brightest...
Arcturus, also known as Alpha Boötis, is one of the brightest stars in the northern hemisphere. In fact, it is the third brightest individual star in the entire night sky behind Sirius and Canopus.
Arcturus is a fine example of a red giant star — impressively large, accordingly rarefied, brilliantly bright, and surprisingly cool. Arcturus possesses only slightly more mass than the Sun, but expands that material into a radius about 25 times larger.
Arcturus is a red giant star located only 36.7 light-years away. It’s the 4th-brightest star in the sky and the brightest one in the northern half of the sky.
If you're curious to learn about Arcturus, one of the brightest stars in the night sky, read on for interesting facts on how it can be spotted with the naked eye, fascinating discoveries, and more interesting facts about Arcturus star.
Arcturus, the fourth brightest star in the night sky, and the brightest star in the northern constellation Boötes, with an apparent visual magnitude of −0.05. It is an orange-coloured giant star 36.7 light-years from Earth.
Arcturus, Alpha Boötis (α Boo), is a red giant star located 36.7 light-years away in the northern constellation Boötes. With an apparent magnitude of -0.05, it is the brightest star in Boötes and the 4th brightest star in the sky.
Arcturus is the brightest star in the constellation Boötes and the fourth-brightest star in the night sky. It is a red giant star approximately 36.7 light-years away from Earth. With an apparent magnitude of -0.05, Arcturus is one of the most luminous stars in the Sun's neighborhood and is often used in celestial navigation.
Arcturus, Alpha Boötis, is the brightest star in Boötes constellation and the fourth brightest star in the sky. With an apparent magnitude of -0.04, Arcturus is the brightest star in the northern celestial hemisphere.