Properties
Gamma Aquilae is a relatively young star with an age of about 100 million years. Nevertheless, it has reached a stage of its evolution where it has consumed the hydrogen at its core and expanded into what is termed a bright giant star, with a stellar classification of K3 II. The star is now burning helium into carbon in its core. After it has finished generating energy through nuclear fusion, Gamma Aquilae will become a white dwarf.
The interferometry-measured angular diameter of Gamma Aquilae is 7.271 ± 0.073 mas, which, at its estimated distance, equates to a physical radius of about 95 times the radius of the Sun. With almost six times the Sun's mass, this is an enormous star that is radiating over 2,500 times the luminosity of the Sun. An effective temperature of 4,210 K in its outer envelope gives it the orange hue typical of K-type stars.
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