dimanche 29 juin 2008

Sagittarius 3


Nunki

Sigma Sagittarii


According to Allen the name "Nunki" is "Euphratean" in origin. I think that this means in fact Babylonian. Nunki is the "Star of the Proclamation of the Sea."
The The Bright Star Catalog also lists Sadira as a name for this star.
Description of the Star
Nunki is a hot, blue B2.5V main sequence star having a luminosity of about 600 times that of the sun.
The spectral type implies an effective temperature of 22,000 K, a diameter about 5.6 times that of the sun, and a mass of 14 solar masses.

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