Examples Red supergiant star

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the orion region showing red supergiant betelgeuse


red supergiants rare stars, visible @ great distance , variable there number of well-known naked-eye examples:



alpha herculis (=rasalgethi)
psi1 aurigae
119 tauri
antares
betelgeuse
mu cephei
vv cephei a

other examples have become known on account of enormous size, more 1,000 r☉:



kw sagittarii
pz cassiopeiae
vx sagittarii
ky cygni
v354 cephei






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