Abstract:
VZ Cas is a Mira-type variable star with a period of 169.28d.
The spectral type of the star is M0e-M3e. The magnitude is
9.3m - 13.3m (Kukarkin et al., 1976).
The star VZ Cas was observed as comparison for the eclipsing
binary GG Cas along with BD + 55d280. Later on it was found that
this is already listed as a Mira-type variable. Observations
were mainly taken with the 35-cm reflector of the Uttar Pradesh
State Observatory using an unrefrigerated 1P21 photomultiplier
and d.c. techniques. The mean differential magnitudes of VZ Cas
are being reported with BD + 55d280 taken as comparison star.
The differential magnitudes are listed in Table I.
