Question: Stars twinkle and planets do not twinkle because a. planets shine by reflected light, and stars produce their own light. b. all stars are pulsing

Stars twinkle and planets do not twinkle because

a. planets shine by reflected light, and stars produce their own light.

b. all stars are pulsing light sources.

c. stars appear as point sources of light, and planets are disk sources.

d. All of the above are correct.

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