Optical and X-Ray Variability of Be Stars: $$\omega$$ Ori

The paper is aimed at studying the variability of the Be star $$\omega$$ Ori. We analyzed the optical spectra of the star taken with the 2.5-m SAI25 telescope of the Caucasus Mountain Observatory (CMO) of SAI MSU. A rapid variability of the H and He line profiles with periods from 37 to 150 minutes are revealed. The photometric light curves of $$\omega$$ Ori obtained with the TESS satellite regular brightness variations with periods of 0.94 and 1.86 days have been detected. We also discuss X-ray observations and search for a magnetic field of $$\omega$$ Ori.