Arcturus forms one corner of the Spring Triangle asterism. Located relatively close at 36.7 light-years from the Sun, Arcturus is a red giant of spectral type K1.5III—an aging star around 7.1 billion years …

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May 29, 2026 · Arcturus is the brightest star of a cone-shaped constellation called Boötes the Herdsman. It takes a lot of imagination to see a herdsman in these stars … but you might easily see …

Feb 11, 2022 · 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 stars that can be...

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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.

Jun 9, 2023 · 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 …

Nov 30, 2023 · 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 …

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Jun 26, 2026 · 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 …