
1) Giant 2) Giant star 3) Heavy metal supergroup 4) Star with proper name 5) Star in Bootes
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https://www.crosswordclues.com/clue/arcturus

1) Kstar 2) Star
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https://www.crosswordclues.com/clue/arcturus

Arcturus (s; α Boo, α Boötis, Alpha Boötis) of the constellation Boötes is the brightest star in the northern celestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the night sky, after −1.46 magnitude Sirius, −0.86 magnitude Canopus, and −0.27 magnitude Alpha Centauri. It is a relatively close star...
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http://en.wikipedia.org/wiki/Arcturus
[steamship] SS ``Arcturus`` was a passenger ship of the Finland Steamship Company operating primarily on the route between Hanko, Finland and Hull, England via Copenhagen, Denmark. Built in 1898 by Gourlay Brothers shipyard in Dundee, Scotland, the Arcturus remained in service until 1956. In its earlier years it was one of the primary ships...
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http://en.wikipedia.org/wiki/Arcturus_(steamship)

• (n.) A fixed star of the first magnitude in the constellation Bootes.
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http://thinkexist.com/dictionary/meaning/arcturus/

one of the five brightest stars in the night sky, and the brightest star in the northern constellation Boötes, with an apparent visual magnitude of ... [4 related articles]
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http://www.britannica.com/eb/a-z/a/96
(Alpha Bootis) Photo: ESO The brightest star in the constellation Boötes and in the entire northern hemisphere, and the fourth brightest in the sky; its Greek name means the 'Bear Watcher,' in reference to the star`s apparent pursuit of Ursa Major around the pole. An ...
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http://www.daviddarling.info/encyclopedia/A/Arcturus.html

<anatomy> A fixed star of the first magnitude in the constellation Bootes. ... Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major. 'Canst thou guide Arcturus with his sons [Rev. Ver., 'the Bear with her train']' (Job xxxviii. 32) ... Origin: L. Arcturus, Gr. Bearward, equiv. To; bear + ward, g...
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http://www.encyclo.co.uk/local/20973
Arc·tu'rus noun [ Latin
Arcturus , Greek ... bearward, equiv. to ...; ... bear + ... ward, guard. See
Arctic .]
(Anat.) A fixed star of the first magnitude in the constellation Boötes. »
Arcturus has sometimes been incorrectly used as the name of the constellation, o...
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http://www.encyclo.co.uk/webster/A/117

The Arcturus was a Swedish patrol boat of 105 tons displacement launched between 1908 and 1910 as a torpedo boat. The Arcturus had a top speed of 25 knots and was armed with one 57 mm gun and one 18 inch torpedo tube.
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http://www.probertencyclopaedia.com/browse/RAA.HTM

[
n] - the 4th brightest star and the brightest star in the constellation Bootes
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http://www.webdictionary.co.uk/definition.php?query=Arcturus
[Greek mythology] a giant orange star in the constellation Bootes, the brightest star in the northern celestial sphere. Here, for the ancient Greeks, its appearance marked the beginning of the winter season.
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https://www.cliffsnotes.com/literature/o/the-oedipus-trilogy/study-help/ful
noun the 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth
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https://www.encyclo.co.uk/local/20974

Brightest star in the constellation Boötes and the fourth-brightest star in the night sky. Arcturus is a red giant about 28 times larger than the Sun and 70 times more luminous, 36 light years away from the Sun
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https://www.encyclo.co.uk/local/21221

a first-magnitude star in the constellation Boötes.
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https://www.infoplease.com/dictionary/arcturus
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