The red hypergiant star
WOH G64 has a broad number of emission lines in its spectrum including H[alpha], H[beta], [O I], [N I], [S II], [N II], and [O III] .
Washington, March 13 ( ANI ): Researchers using ESO's Very Large Telescope Interferometer (VLTI) have found the largest yellow hypergiant star
HR 5171 A - 1300 times the diameter of the Sun and much bigger than was expected.
VY Canis Majoris, a red hypergiant star
with 40 times the Sun's mass, is sometimes cited as the largest star known, larger than the orbit of Jupiter.
Rho ([rho]) Cassiopeiae is a hypergiant star
located about 10,000 light-years away.
Technically, hypergiant stars
have a luminosity class of 0, while UY Set is la, the highest luminosity class for supergiants.