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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.
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 December 2024. Proposed thirteenth astrological sign Serpent-bearer Astrology Background Worship of heavenly bodies History of astrology Astrology and astronomy Glossary Planets Behenian Classical Zodiac Traditions, types, and systems Astrology and science Astrologers Astrological organizations ...
Nu Ophiuchi and its brown dwarf companion Nu Ophiuchi b. Nu Ophiuchi has about three times the mass of the Sun and is roughly 450 million years old. [4] The spectrum of the star matches a stellar classification of K0 IIIa, [3] indicating it is a giant star that has exhausted the supply of hydrogen at its core and evolved away from the main sequence of stars.
Rho Ophiuchi (ρ Ophiuchi) is a multiple star system in the constellation Ophiuchus. The central system has an apparent magnitude of 4.63. [2] Based on the central system's parallax of 9.03 mas, [1] it is located about 360 light-years (110 parsecs) away. [1] The other stars in the system are slightly farther away. [11]
Delta and Epsilon Ophiuchi comprise the left hand of Ophiuchus (the Serpent Bearer) that holds the head of the serpent (Serpens Caput). Delta is Yed Prior as it leads Epsilon across the sky. In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) [15] to catalogue and standardize proper names for stars.
The name Alpha Ophiuchi is a Romanisation of the star's Bayer designation, α Ophiuchi.It is also known by the traditional name Rasalhague, from the Arabic رأس الحواء raʼs al-ḥawwāʼ "the head of the serpent collector". [12]
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.
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 ...