No a pulsar cannot be an unstable red giant. It is nothing more than a neutron star [See related question]
When a Red Giant explodes, it undergoes a supernova event, where the star releases a tremendous amount of energy in a short period. This explosion can produce heavy elements and spread them into space, enriching the surrounding region with these elements. The core of the star can collapse into a neutron star or black hole, depending on its mass.
A red giant star.
Betelgeuse is a red giant.
Its justa red giant or supergiant
Red giant is a type of star.
Star
ClusterSpiralRed giantPulsar
Pulsar
A pulsar can't even be seen by a giant telescope, you can only perceive the pulses they send with a radio.
When a Red Giant explodes, it undergoes a supernova event, where the star releases a tremendous amount of energy in a short period. This explosion can produce heavy elements and spread them into space, enriching the surrounding region with these elements. The core of the star can collapse into a neutron star or black hole, depending on its mass.
A red giant star.
yes but its red
After a death of a Giant Star, a corpse of a star will be the remaining of it, right in the center of the aftermath, you will find one of the strangest objects in the Universe, the Pulsar and the Neutron Star.
Betelgeuse is a red giant.
Its justa red giant or supergiant
Yes
it would be red , bigger , and and grow until it is a red giant , a red super giant , or a hyper-giant