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the super giant stars are red
Hypergiant.
The star Betelgeuse is a supergiant.
Astronomer's call it a super giant star
A giant star is a star with substantially larger radius and luminosity than a main sequence star of the same surface temperature.There are many giant stars.Orange giantsYellow giantsWhite giantsRed giantsBlue giants
The giant star
Polaris is a yellow super-giant with two smaller companions, Polaris Aa has a radius which is 46 +/- 3 times the Sun's radius.
A red giant can have a radius of 50 million to 500 million kilometres.
the super giant stars are red
Hypergiant.
super giants are a very very big star
A Super Nova.
Hypergiant.
The star Betelgeuse is a supergiant.
super-giant star
one is big one is small
Stellar Nebula - Average Star- Red Giant - Planetary Nebula - White Dwarf Stellar Nebula - Massive Star - Red Super Giant - Super Nova- Neutron Star Stellar Nebula - Massive star - Red Super Giant -Super Nova - Black Hole