Blinking Star

The stars, planets and sub planets in the space will be in the circular shape only. But during night times, the moon in the sky appears round in shape and all the stars are blinking. The reason behind this is when the light which comes from the stars travels through various densities of the air and undergoes refraction. Just because of this misplacement, the stars keep blinking. The Moon is not a shining planet of its own. Due to the reflection of light on the moon and the moon being closure to the earth, the light does not undergo much refraction and thus appears circular in shape. The reason for the stars blinking during night times in the sky is the Atmospheric refraction.

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