High Quality Content by WIKIPEDIA articles! Xi Herculis is a star located within the constellation of Hercules. Its Declination is 29° 15?, Right Ascension is 17h 58m, and Magnitude is 3.7. Xi Herculis is about 160 light-years from Earth. Hercules is a constellation. It is named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles. Hercules was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is the fifth largest of the modern constellations.

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