Delta Draconis

Delta Draconis (δ Draconis, abbreviated Delta Dra, δ Dra), formally named Altais , is a yellow star in the constellation of Draco. It has an apparent visual magnitude of 3.0, making it easily visible to the naked eye. Based on parallax measurements obtained during the Hipparcos mission, it is approximately from the Sun.
Nomenclature.
"δ Draconis" (Latinised to "Delta Draconis") is the star's Bayer designation.
It bore the traditional names "Aldib", "Altais" (the goat) and "Nodus Secundus". The title "Altais" was derived from Arabic "Al Tāis" "the Goat", the association of this star, along with Pi Draconis, Rho Draconis and Epsilon Draconis (Tyl). According to a 1971 NASA catalog of stars, "Al Tāis" or "Tais" were the title for three stars : Delta Draconis as "Altais", Pi Draconis as "Tais I" and Rho Draconis as "Tais II" (exclude Epsilon Draconis). In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name "Altais" for this star on 21 August 2016 and it is now so included in the List of IAU-approved Star Names.
In Chinese, (), meaning "Celestial Kitchen" or "Heaven's Kitchen", refers to an asterism consisting of Delta Draconis, Sigma Draconis, Epsilon Draconis, Rho Draconis, 64 Draconis and Pi Draconis. Consequently, the Chinese name for Delta Draconis itself is (, ).
Properties.
Delta Draconis is a giant star with a stellar classification of G9 III. This indicates that, at an estimated age of 800 million years, it has exhausted the supply of hydrogen at its core and entered a later stage in its evolution. The angular diameter of the star is estimated as . At a parallax of 32.54 mas, this corresponds to a physical radius equal to 11 times the solar radius. It is radiating 59 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 4,820 K. At this temperature, it is giving off the yellow-hued glow of a G-type star. With a mass 2.32 times that of the Sun, this star will end its life as a white dwarf.
Pole star.
Delta Draconis is the northern pole star of Ceres, lying 1.5 degrees from the true pole.