Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Bootes is a constellation in the northern sky, located between 0° and +60° declination, 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek , Bootes, meaning herdsman or plowman (literally, ox-driver; from boos, related to the Latin bovis, “cow”). The "o" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately. Bootes was one of the 48 constellations described by the 2nd century astronomer Ptolemy and is now one of the 88 modern constellations. It contains the third brightest star in the night sky, Arcturus. Bootis, a relatively Sun-like star, is orbited by the massive hot Jupiter planet Bootis Ab. It was the fourth extrasolar planet to be discovered and is one of the most studied.

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