A new period (p = 3.ͩ687664) of the eclipsing binary system IZ Persei is given, based on 16 observed times of the minima. O-C diagrams of IZ Per have been presented for the first time, and the period variations have been ...
The colour indices and the spectrum-luminosity of the eclipsing binary system IZ Persei have been presented for the first time. The colour indices of the system appear reddened. Applying the interstellar reddening corrections, ...