Orion is a constellation, not a star. Betelgeuse, the red giant at the left shoulder of Orion, is a supergiant.
High mass.
A white dwarf is the remnant of a low to medium mass star.
Helium. A low mass star does not have enough mass to generate the heat needed to fuse helium.
The Sun is a medium mass star in main sequence.
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The brightest star in Orion is Rigel.
Right below (under) Orion's belt is the Orion Nebula- when viewed with the naked eye it looks just like a star- but it is actually consists of many star(s), dust & clouds. The really bright star in Orion (Orion's "left foot") is the 6th brightest star in the sky- Rigel.
Orion is a constellation - a group of stars, not a single star.
High mass.
There are more low mass stars. this is for two reasons:- # the star forming process generates more low mass stars # High mass stars burn out very quickly and explode as supernovas and thus over time there are less and less of them.
The largest star in Orion is Betelgeuse with a solar radii of 1,180.
The dimmest star is Orion is HD 37605 with an apparentmagnitude of 8.69