Zeta Cassiopeiae is a probable member of an unusual group of variable stars known as "Slowly Pulsating B" (SPB) stars. It shows a pulsation frequency of 0.64 per day (or once every 1.56 days) and displays a weak magnetic field with a strength of roughly , which varies with a period of 5.37 days. This likely matches the rotation rate of the star, which, when combined with the low projected rotational velocity, indicates the star may be seen nearly pole-on.
Zeta Cassiopeiae is part of an unusual group of variable stars known as "Slowly Pulsating B" (SPB) stars. It exhibits pulsation at a frequency of 0.64 per day and displays a weak magnetic field with a strength that varies over a period of 5.37 days. This rotation rate, combined with the low projected rotational velocity, suggests Zeta Cassiopeiae is viewed nearly pole-on.