Astronomy: General

A Dictionary of Astronomy Oxford Dictionary of Rhymes Further reading

Ophiuchus

A Dictionary of Astronomy | 1997 | Copyright

Ophiuchus (abbr. Oph, gen. Ophiuchi) A large constellation on the celestial equator, representing a man holding a serpent (the constellation Serpens). It contains the second-closest star to the Sun, Barnard's Star. Although Ophiuchus is not officially a constellation of the zodiac, the Sun nevertheless passes through it in the first half of December. Its brightest star is Rasalhague (Alpha Ophiuchi). Rho Ophiuchi is a quadruple star of magnitudes 5.0, 5.7, 6.7, and 7.3, surrounded by the faint Rho Ophiuchi Nebula. 70 Ophiuchi is a double star with an orbital period of 88 years, magnitudes 4.2 and 6.0, colours yellow and orange, 16 l.y. away. RS Ophiuchi is a recurrent nova that has flared up to naked-eye brightness six times, in 1898, 1933, 1958, 1967, 1985, and 2006. NGC 6633 and IC 4665 are large open clusters. Ophiuchus contains numerous globular clusters, including M9, M10, M12, M14, M19, M62, and M107.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"Ophiuchus." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"Ophiuchus." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-Ophiuchus.html

"Ophiuchus." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Ophiuchus.html

Learn more about citation styles

Ophiuchus

Oxford Dictionary of Rhymes | 2007 | Copyright

Ophiuchus •Bacchus, Caracas, Gracchus •Damascus •Aristarchus, carcass, Hipparchus, Marcus •discus, hibiscus, meniscus, viscous •umbilicus • Copernicus •Ecclesiasticus • Leviticus • floccus •caucus, Dorcas, glaucous, raucous •Archilochus, Cocos, crocus, focus, hocus, hocus-pocus, locus •autofocus •fucus, Lucas, mucous, mucus, Ophiuchus, soukous •ruckus • fuscous • abacus •diplodocus • Telemachus •Callimachus • Caratacus • Spartacus •circus

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"Ophiuchus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"Ophiuchus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O233-Ophiuchus.html

"Ophiuchus." Oxford Dictionary of Rhymes. 2007. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-Ophiuchus.html

Learn more about citation styles

Free newspaper and magazine articles

	Ophiuchus: what you didn't know about the zodiac's 'new' constellation.(Science) Newspaper article from: The Christian Science Monitor; 1/17/2011
	'Stars' not affected by Ophiuchus.(Showbiz) Newspaper article from: Manila Bulletin; 1/17/2011
	Ophiuchus, Nov. 29-Dec. 17.(Opinion) Newspaper article from: Manila Bulletin; 1/16/2011