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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.
The Dark Horse lies in the equatorial constellation Ophiuchus (the Serpent Bearer), near its borders with the more famous constellations Scorpius and Sagittarius. It is a large, visible feature of the Milky Way's Great Rift , uniting several individually catalogued dark nebulae, including the Pipe Nebula .
Delta Ophiuchi (δ Ophiuchi, abbreviated Delta Oph, δ Oph), formally named Yed Prior / ˌ j ɛ d ˈ p r aɪ ər /, [13] [14] is a star in the constellation of Ophiuchus.It forms a naked-eye optical double with Epsilon Ophiuchi (named Yed Posterior [14]).
NeVe 1 [2] is a supergiant elliptical galaxy, which is the central, dominant member and brightest cluster galaxy (BCG) of the Ophiuchus Cluster. It lies at a distance of about 411 million light-years away from Earth and is located behind the Zone of Avoidance region in the sky.
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.
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]
Gaia BH1 (Gaia DR3 4373465352415301632) is a binary system consisting of a G-type main-sequence star and a likely stellar-mass black hole, located about 1,560 light-years (478 pc) away from the Solar System in the constellation of Ophiuchus. [4]
IC 4665 (Collinder 349 / Melotte 179) is an open cluster of stars in the constellation Ophiuchus, about 1° to the northeast of the star Beta Ophiuchi. [3] It was discovered by Swiss astronomer Philippe Loys de Chéseaux in 1745. The cluster lies about 1,100 light years away from Earth. [2]