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- Nu_Ophiuchi abstract "Nu Ophiuchi (ν Oph, ν Ophiuchi) is a star in the equatorial constellation of Ophiuchus. This star is sometimes called by the name Sinistra, meaning left side in Latin. The apparent visual magnitude is +3.3, making it one of the brighter members of this constellation. Based upon parallax measurements made during the Hipparcos mission, this star is located about 151 light-years (46 parsecs) from Earth.In China, the star is part of 天市左垣 (Tiān Shì Zuǒ Yuán), meaning Left Wall of Heavenly Market Enclosure. The stars in this group include ν Ophiuchi, δ Herculis, λ Herculis, μ Herculis, ο Herculis, 112 Herculis, ζ Aquilae, θ1 Serpentis, η Serpentis, ξ Serpentis and η Ophiuchi. Consequently, ν Ophiuchi itself is known as 天市左垣九 (Tiān Shì Zuǒ Yuán jiǔ, English: the Ninth Star of Left Wall of Heavenly Market Enclosure), and together with ζ Capricorni represents the state Yan (燕) in the Twelve States constellation.Nu Ophiuchi has about three times the mass of the Sun and is roughly 330 million years old. The spectrum of the star matches a stellar classification of K0 IIIa, 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 like the Sun. Unusually, it displays an anomalously low abundance of cyanogen for a star of its type. The star's outer envelope has expanded to around 14 times the Sun's radius and now radiates 123 times as much luminosity of the Sun. This energy is being emitted from its outer envelope at an effective temperature of 4,928 K, giving it the cool, orange hue of a K-type star.This is not a binary star system in the sense of having a gravitationally-bound stellar companion. However, in early 2004, a brown dwarf companion Nu Ophiuchi b was discovered. This sub-stellar companion has at least 21.9 times the mass of Jupiter and takes 536 days (1.47 years) to complete an orbit. A second brown dwarf companion was discovered in 2010, orbiting further from the star with a period of 3,169 days (8.68 years). These have been confirmed in 2012.This star is following an orbit through the galaxy that carries the star between 23.4–29.2 kly (7.2–9.0 kpc) from the Galactic Center. As a probable member of the Milky Way's thin disk population, it has a low orbital inclination that carries it no more than about 100 ly (31 pc) above the galactic plane.".
- Nu_Ophiuchi thumbnail Ophiuchus_IAU.svg?width=300.
- Nu_Ophiuchi wikiPageID "9027842".
- Nu_Ophiuchi wikiPageRevisionID "602429309".
- Nu_Ophiuchi absmagV "–0.19".
- Nu_Ophiuchi ageMyr "330".
- Nu_Ophiuchi appmagV "+3.332".
- Nu_Ophiuchi bV "+0.999".
- Nu_Ophiuchi constell Ophiuchus.
- Nu_Ophiuchi eccentricity "0.13".
- Nu_Ophiuchi eccentricity "0.18".
- Nu_Ophiuchi epoch "J2000".
- Nu_Ophiuchi exoplanet "b".
- Nu_Ophiuchi exoplanet "c".
- Nu_Ophiuchi gravity "2.7".
- Nu_Ophiuchi hasPhotoCollection Nu_Ophiuchi.
- Nu_Ophiuchi luminosity "123".
- Nu_Ophiuchi mass "3.04".
- Nu_Ophiuchi mass "≥21.9".
- Nu_Ophiuchi mass "≥24.5".
- Nu_Ophiuchi metalFe "0.02".
- Nu_Ophiuchi pError "0.26".
- Nu_Ophiuchi parallax "21.64".
- Nu_Ophiuchi period "3169".
- Nu_Ophiuchi period "536".
- Nu_Ophiuchi periodUnit "day".
- Nu_Ophiuchi propMoDec "–116.69".
- Nu_Ophiuchi propMoRa "–9.48".
- Nu_Ophiuchi radius "14".
- Nu_Ophiuchi rotationalVelocity "2.1".
- Nu_Ophiuchi semimajor "5.88".
- Nu_Ophiuchi semimajor "≥1.875".
- Nu_Ophiuchi temperature "4928".
- Nu_Ophiuchi uB "+0.873".
- Nu_Ophiuchi subject Category:Bayer_objects.
- Nu_Ophiuchi subject Category:Brown_dwarfs.
- Nu_Ophiuchi subject Category:K-type_giants.
- Nu_Ophiuchi subject Category:Ophiuchus_(constellation).
- Nu_Ophiuchi subject Category:Planetary_systems.
- Nu_Ophiuchi type Animal100015388.
- Nu_Ophiuchi type BayerObjects.
- Nu_Ophiuchi type Giant101323781.
- Nu_Ophiuchi type K-typeGiants.
- Nu_Ophiuchi type LivingThing100004258.
- Nu_Ophiuchi type Object100002684.
- Nu_Ophiuchi type Organism100004475.
- Nu_Ophiuchi type PhysicalEntity100001930.
- Nu_Ophiuchi type Whole100003553.
- Nu_Ophiuchi type CelestialBody.
- Nu_Ophiuchi type Star.
- Nu_Ophiuchi type PhysicalBody.
- Nu_Ophiuchi comment "Nu Ophiuchi (ν Oph, ν Ophiuchi) is a star in the equatorial constellation of Ophiuchus. This star is sometimes called by the name Sinistra, meaning left side in Latin. The apparent visual magnitude is +3.3, making it one of the brighter members of this constellation.".
- Nu_Ophiuchi label "Ni Ophiuchi".
- Nu_Ophiuchi label "Ni Ophiuchi".
- Nu_Ophiuchi label "Nu Ophiuchi".
- Nu_Ophiuchi label "Nu Ophiuchi".
- Nu_Ophiuchi label "Nu Ophiuchi".
- Nu_Ophiuchi label "Nu Ophiuchi".
- Nu_Ophiuchi label "へびつかい座ニュー星".
- Nu_Ophiuchi label "天市左垣九".
- Nu_Ophiuchi sameAs Ni_Ophiuchi.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi sameAs へびつかい座ニュー星.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi sameAs Ni_Ophiuchi.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi sameAs m.027v0yb.
- Nu_Ophiuchi sameAs Q2732949.
- Nu_Ophiuchi sameAs Q2732949.
- Nu_Ophiuchi sameAs Nu_Ophiuchi.
- Nu_Ophiuchi wasDerivedFrom Nu_Ophiuchi?oldid=602429309.
- Nu_Ophiuchi depiction Ophiuchus_IAU.svg.
- Nu_Ophiuchi isPrimaryTopicOf Nu_Ophiuchi.
- Nu_Ophiuchi name "Nu Ophiuchi".