Photometric Update of δ Scuti Stars: ZZ Microscopium

Abstract Multi-color CCD photometric update of the bright high amplitude δ Scuti star ZZ Microscopium (ZZ Mic) is presented. We find that the B band has the highest amplitude at 0.47 mag while the V band amplitude is smaller at 0.38 mag. The revised pulsation period 0.06717850 day is similar to most recent previous estimates. We did not detect secondary mode pulsations. We find the temperature of the star varies by 720 K during pulsations and its radius changes by 0.1 R ☉ . We estimate the mass of ZZ Mic as 1.93 M ☉ and surface gravity g as 4.19.