Please select the word from the list that best fits the definition.
stage in a star's evolutio...
Please select the word from the list that best fits the definition.
stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into space?
parallax
light-year
main sequence
H-R diagram
white dwarf
fusion
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elliptical galaxy
barred spiral galaxy
irregular galaxy
Milky Way Galaxy
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