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ELTANIN (Gamma Draconis). Because it was the pole star during a time of ancient Egypt, Thuban is the most famed star of Draco, the Dragon, ...
Eltanin is a cool, orange K5III giant about 200 times as luminous as the sun. The spectral type implies an effective temperature of about 3800 K, a mass of 5.0 solar masses and a diameter 25 times that of the sun.
Its brightest star is second-magnitude Gamma Draconis, called Etamin or Eltanin, from the Arabic al-tinnin meaning ‘the serpent'.
* (33/γ Dra) 2.24 Eltanin [Etamin, Etanin, Ettanin] or Zenith Star (or Rastaban [Rastaben], see β Dra):*: ar-rās at-tinn"n The head of the dragon (also called Caput Draconis) ...
The brightest star in the constellation is [3438] gamma Draconis or Eltanin ("the serpent"), an orange giant 148 light-years distant. It lies close to the point directly over London and is sometimes called the "zenith star." ...
Named stars: Alpha Dra (Thuban), Gamma Dra (Eltanin), Delta Dra (Al Tais)
Info:
Equuleus (Little Horse) ...
Aldhibah (Nodus I, ζ Dra), Alsafi (σ Dra), Arrakis (Al Rakis, ν Dra), Altais (Aldib, Nodus II, δ Dra), Dziban (ψ1 Dra), Edasich (ι Dra), Eltanin (Etamin, γ Dra), Giansar (Gianfir, λ Dra), Grumium (ξ Dra), ...
Although Thuban's Bayer designation is Draconis, it is not the brightest star in the constellation. At magnitude 3.65, it is more than a magnitude fainter than the brightest star, Draconis (Eltanin), whose magnitude is 2.23.
 See also: Star, Magnitude, Rastaban, Constellation, Thuban
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