samedi 2 août 2008

Ophiucus 11


Stars


Alpha Ophiuchi (α Oph / α Ophiuchi) is the brightest star in the constellation Ophiuchus. It also has the traditional name Ras Alhague. رأس الحوّاء
Ras Alhague has an apparent magnitude of +2.08, belongs to the spectral classification A5, and is about 47 light years distant from Earth.
The name Ras Alhague is from the Arabic رأس الحية , meaning "the Head of the Serpent-charmer."

Eta Ophiuchi (η Oph / η Ophiuchi) is a star in the constellation Ophiuchus. It also has the traditional name Sabik. The Preceding : سابق
Beta Ophiuchi (β Oph / β Ophiuchi) is a K-type giant star in the constellation Ophiuchus. It also has the traditional names Cebalrai (Arabic: "shepherd dog"), Cheleb, or Kelb Alrai, or sometimes just Alrai. Like some other K-type giants, β Ophiuchi has been found to vary very slightly (0.02 magnitudes) in brightness.

Delta Ophiuchi (δ Oph / δ Ophiuchi) is a hstar in the constellation Ophiuchus. It also has the traditional name Yed Prior (and the star Epsilon Ophiuchi, with which it forms a naked eye optical double, is Yed Posterior). The preceding one of "the hand" مقدّم يدالحوّاء
The traditional name Yed is derived from Arabic meaning "the hand", and the two stars are the left hand of Ophiuchus (the Serpent Bearer) that holds the head of the serpent Serpens Caput.

Zeta Ophiuchi (ζ Oph / ζ Ophiuchi) is a star located in the constellation of Ophiuchus. Unlike most of the brighter stars in the sky, ζ Ophiuchi does not have a proper name, although it may have been referred to as Hán (韓) by the Chinese. Although ζ Ophiuchi is a hot blue giant star it appears reddish due to interstellar dust that absorbs much of blue light. In fact, were it not for this dust, ζ Ophiuchi would shine several times brighter and be among the very brightest visible. ζ Ophiuchi is roughly half way through the initial phase of its stellar evolution and will within the next few million years expand into a supergiant star before ending its life in a spectacular supernova.

Kappa Ophiuchi (κ Oph / κ Ophiuchi) is a Class A2, third-magnitude star in the Constellation Ophiuchus. It occasionally called by the Hebrew-Arabic name Helkath, meaning "battlefield" or "battleground". ميدان القتال

Theta Ophiuchi (θ Oph / θ Ophiuchi) is a Class B2, third-magnitude star in the constellation Ophiuchus. It sometimes called by the Arabic name Imad, meaning "pillar", perhaps referring to one of the pillars upon which the Snake Charmer الحواء Al Hawwa is standing, or it may refer to the Pillar of Moral and Spiritual Fortitude portrayed within southern Ophiuchus and part of Scorpius by the ancient Arabs. Another name is Kaki for "lower leg" or "foot".

Nu Ophiuchi (ν Oph / ν Oph) is a Class K0, third-magnitude star in the consthellation Ophiuchus. It carries the traditional hLatin name Sinistra, meaning "left" or "left hand" despite the fact that Nu Ophiuchi marks the Serpent Bearer's right hand.
Nu Ophiuchi is a binary star with components of magnitudes 3.3 and 6.8, separated by 2.7 arcseconds. This stellar system is located about 153 light-years from Earth.

72 Ophiuchi (72 Oph / 72 Ophiuchi) is a Class A4, fourth-magnitude star in the constellation Ophiuchus. It sometimes called by the Greek name Phorbaceus, referring to the hero Phorbas, who saved the island of Rhodes from a plague of serpents. Φόρβακεως

Gamma Ophiuchi (γ Oph / γ Ophiuchi) is a Class A4, fourth-magnitude star in the constellation Ophiuchus. It sometimes called by the Arabic name Al Durajah, with reference to a mighty Arabian charioteer seen among the stars of Ophiuchus. قائد العجله الحربيه

Lambda Ophiuchi (λ Oph / λ Ophiuchi) is a star in the constellation Ophiuchus. It also has the traditional name Marfik The elbow (or "Marsik"). مرفق

67 Ophiuchi (67 Oph / 67 Ophiuchi) is a Class B5, fourth-magnitude star in the constellation Ophiuchus. It sometimes called by the Arabic name Fellah, meaning "peasant". فلاح

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