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Zeta Ophiuchi (ζ Oph, ζ Ophiuchi) is a single [9] star located in the constellation of Ophiuchus. It has an apparent visual magnitude of 2.6, making it the third-brightest star in the constellation. Parallax measurements give an estimated distance of roughly 440 light-years (130 parsecs) from the Earth. [1]
Ophiuchus (/ ˌ ɒ f i ˈ juː k ə s /) is a large constellation straddling the celestial equator. Its name comes from the Ancient Greek ὀφιοῦχος ( ophioûkhos ), meaning "serpent-bearer", and it is commonly represented as a man grasping a snake.
Theta Ophiuchi, Latinized from θ Ophiuchi, is a multiple star system in the equatorial constellation of Ophiuchus. It lies on the "right foot" of the serpent-bearer, just southwest of Kepler's Star, the nova of 1604.
Alpha Ophiuchi (α Ophiuchi, abbreviated Alpha Oph, α Oph), also named Rasalhague / ˈ r æ s əl h eɪ ɡ /, [12] [13] is a binary star and the brightest star in the constellation of Ophiuchus. Nomenclature
η Ophiuchi (Latinised to Eta Ophiuchi) is the system's Bayer designation.WDS J17104-1544AB is its designation in the Washington Double Star Catalog.The designations of the two components as WDS J17104-1544 A and B derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).
λ Ophiuchi, Latinized as Lambda Ophiuchi, is a triple star system [3] in the equatorial constellation of Ophiuchus. [10] It has the traditional name Marfik / ˈ m ɑːr f ɪ k /, [11] which now applies exclusively to the primary component. [12] The system is visible to the naked eye as a faint point of light with an apparent visual magnitude ...
ξ Oph, Latinized as Xi Ophiuchi, is a visual binary star [9] system in the equatorial constellation of Ophiuchus. [2] It has a yellow-white hue and is faintly visible to the naked eye with a combined apparent visual magnitude of 4.39. [2]
Kappa Ophiuchi, Latinized from κ Ophiuchi, is a star in the equatorial constellation Ophiuchus.It is a suspected variable star with an average apparent visual magnitude of 3.20, [2] making it visible to the naked eye and one of the brighter members of this constellation.