Science Fair Project Encyclopedia
Sigma Draconis
Sigma Draconis (σ Dra / σ Draconis) is a star system 18.8 light years away from Earth. Its traditional name is Alsafi. It is in constellation Draco. Its visual magnitude is 4.68.
The star is an orange main sequence dwarf of spectral type K0.
The traditional name "Alsafi" (also Athafi) supposedly derives from an Arabic word al-athafi "the cooking tripods".
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details