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Stars and galaxies
relatively cool star that has expanded to more than 700 times as large as our sun
groups of stars whose positions in the sky seem to change as earth moves
lowest layer of the sun's atmosphere that gives off light
classification of about 90% of the stars
actual amount of light a star gives off
two or more stars revolving around one another
produced from an explosion that occurs when a star's core collapses
a star in which only neutrons can exist in its core
an object so dense that nothing, including light, can escape it.
a large group of stars gas and dust held together by gravity
large cool expanding star in which hellium fuses to form carbon
amount of a stars light observed on earth
apparent shift in position of a object when viewed from different places used to determine distances
distance that light travels in one year
Dark cooler areas of the sun's surface
layer of the sun atmosphere above the photosphere
outer layer and largest part of the sun's atmophere
small hot star consisting of a hot dense core contracting under the force of gravity
Earlier stage of a stars formation
Big Bang Theory
Explanation for the beginning of the universe