We rediscuss the unusual case of the slowly rotating late-type giant HR 1362, which exhibits a very unusual high level of magnetic activity. New BVRI photometry from two robotic telescopes from 1991 through 1998 together with previously published photometric data gives a very precise photometric period of 306.9±0.4 days. With the aid of high-resolution (R=120,000) optical spectra and the Hipparcos parallax we redetermine the absolute parameters of HR 1362 and find it to be a single G8IV-III star of 14 L and a mass of 1.85 M with Teff=5125 K, log g=3.25, and solar abundances. Lithium is not significantly different from solar and we obtain log n(Li)=1.14 from a detailed spectrum synthesis including both isotopes at 6708 ̊A. V sin i and macroturbulence are determined from fits of disk-integrated models to the observed line profiles as well as their Fourier transforms and are 1.5±0.5 km s−1 and ≈5 km s −1, respectively. The minimum radius from v sin i and Prot is only then in agreement with the spectral classification and the bolometric luminosity from the Hipparcos parallax if the inclination of the stellar rotation axis is nearly 90◦. We concur with the arguments of Stepien (1993) that HR 1362 is an evolved Ap star, and therefore the magnetic field is possibly of galactic origin rather than dynamo generated.
K.G. Strassmeier, K. Stepien, G.W. Henry3, and D.S. Hall4 "Evolved, single, slowly rotating . . . but magnetically active The G8-giant HR 1362 = EK Eridani revisited" Astron. Astrophys. 343, 175–182 (1999)