The colour of a star is a good measure of the surface temperature.
A non red giant is a giant, whereas a supergiant is well a supergiant and is a lot bigger.
Yes, it is a red supergiant star.
Yes, Betelgeuse is a red supergiant star.
Betelgeuse is the star in Orion that is known as a red supergiant.
Red supergiant
Yes it is.
Really, it is a red supergiant, I believe.
Red supergiant
Yes.
Its justa red giant or supergiant
The star Antares is always red. It is a red supergiant star.
Antares