The spectrum of this star shows overabundances of mercury and manganese, as indicated by the HgMn in the stellar class.

That is, the spectrum of this star is used to correct for telluric contamination from the Earth's atmosphere when examining the spectra of neighboring stars.

Formerly it was classified as K0, with the spectrum of this star serving as one of the stable anchor points by which other stars are classified.

The spectrum of this star matches a stellar classification of F2 II.

The spectrum of this star fits a stellar classification of F0 IV.

Sir William Huggins examined the spectrum of this star and observed a noticeable red shift.

In 1979, examination of the spectrum of this star found "moving bumps" in its helium line profiles.

The spectrum of this star matches a stellar classification of G8 III.

The spectrum of this massive star matches a stellar classification of B0.5 IVe.

Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.