What distinguishes the steady glow of a planet from the twinkling of a star when observed?
Answer
Stars, being distant points of light, are more susceptible to atmospheric distortion causing twinkling, whereas planets shine with a steadier light.
Stars appear to twinkle or scintillate because they are incredibly distant points of light susceptible to atmospheric distortion. Planets, appearing as tiny disks, shine with a much more constant light.
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