az phoenicis is a delta scuti variable that pulsates with a single period of 79.3 minutes, causing its visual brightness to vary with an amplitude of 0.015 magnitudes. its variability was discovered by werner weiss in 1977, from observations with the 50-cm telescope at la silla observatory. az phoenicis has also been classified as a possible ap star, which remains uncertain, even though the star has a large concentration of metals; the overall metallicity of the star has been measured to about 3 times the solar metallicity.