Hot.
Hot.
betelgeuse
hot, bright stars
KY Cyngnii
They are big stars.
Super giants are more massive and have larger radii than giant stars. Super giants are in a more advanced stage of stellar evolution compared to giant stars. Both types of stars eventually exhaust their nuclear fuel and go on to evolve into other stages, such as supernovae or white dwarfs.
because giant and supergiant stage is very short
Big huge stars
Upper right
Some examples of supergiant stars are Rigel, Deneb and Betelgeuse.
Some of the SUPER GIANT stars are Sirius,Sun,Rigel,Betelgeuse,and procyon.
upper right