Tags: Star.
TZ Cassiopeaie (TZ Cas HIP 117763 SAO 20912) is a variable star in the constellation Cassiopeia with an apparent magnitude of +9.04. It is approximately 7750 light-years away from Earth.TZ Cassiopeaie is a red supergiant with a type M3I with a temperature of 3670 K. It is 15 Solar masses ending its life as a huge supernova turning into a neutron star. TZ Cassiopeaie is an irregular variable with a period of 3100 days it is approximately 68000 times the luminosity of the Sun.