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stars (light years, proto stars, neutron star, white dwarf, high mass…
stars
light years
proto stars
neutron star
white dwarf
high mass stars
o- type stars
Black hole
M- type stars
supernova
hot bright stars
low mass stars
OBAFGKM
red supergiant
tempature
star forming nebula
main sequence
parallax
cool small stars
protostars
red giant
stellar evolution
planetary nebula
star forming nebula