  The red giant MaCoMP_V1 in Cepheus at coordinates RA (J2000) 22:49:05:49 and
DEC (J2000) +57:52:41:6 is a semiregular variable star classified as SRS,
number 2225960 in the AAVSO VSX database. Using the Fourier transform, the
period P = 24.751(0.062)d was evaluated and, with the support of the ASAS-SN
and ZTF surveys, a well-defined light curve was made. The analysis resulted in
the fundamental physical parameters of MaCoMP_V1, such as the mass M =
4.97(0.38)M(Sun) and radius R = 40.5(6.7)R(Sun), with consistent values
suggesting the characteristics of a semiregular red giant. In addition, the
effective temperature Teff = 4500(135)K from the Gaia catalog and the stellar
evolution based on the Schoenberg-Chandraskehar limit was estimated.
