The spectrum of this star matches a stellar classification of K2 III, with the luminosity class of 'III' indicating this is a giant star that has exhausted the hydrogen at its core and evolved away from the main sequence of stars like the Sun. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.
This particular star's spectral profile aligns with a stellar classification of K2 III, denoting it as a giant star that has exhausted its hydrogen fuel and diverged from the main sequence. Since 1943, this star's spectrum has served as a reliable benchmark for categorizing other celestial bodies.