I need to know at least three similarities between a star and a comet based on physical and chemical compositions. It's for science homework. I've already got one: Both can be seen from Earth.
Any help?|||Both are orbiting other celestial objects
Both emit gases
Both are approximately the same age (formed near the time when the solar system was formed)
Mack|||Both are in space (a vacuum)
Both are composed of matter (vs energy).
The ancient word for comet meant hairy star.
That is about it.|||?
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