Betelgeuse is a red supergiant. [See related link]
There are thousands, possibly millions/billions of Supergiant stars in the Universe.
A supergiant star can have different colors depending on its temperature. A hotter supergiant star will appear blue or white, while a cooler supergiant star will appear red or orange.
Red super giant.
Its famous super giant star is Betelgeuse, a red giant and very noticeably red when you look at it. It is in the top left corner of Orion.
No. That is when stars run out of hydrogen. They then have helium for fuel.
Alpha Ophiuchi is considered to have a stellar classification of A5 III, which makes it a "normal" giant, not a supergiant.
The giant star
Hypergiant.
A Super Nova.
super giants are a very very big star
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
sirius
That would mainly depend on the star's mass.
No. It is, in fact, a super-giant.
They are big stars.
An extremely big star.