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  • Smart Learning for All

  • Topic: Atmospheric Refraction.

  • Why do stars seem higher than they actually are?

  • Hey.

  • That is not the actual position of the star Please listen.

  • Please, listen.

  • Fine.

  • Then bear the consequences.

  • See.

  • I told you.

  • Do you know why this happens?

  • This happens because of atmospheric refraction.

  • Atmospheric refraction is the refraction or bending of light caused by the earth's atmosphere.

  • It went over your head, right?

  • No worries.

  • Let me explain it to you in detail.

  • In the earth's atmosphere, the air closer to the earth's surface is denser due to gravity.

  • But as we move higher, the air density goes on decreasing.

  • This forms different media of air.

  • The layer of air closer to the earth's surface forms the denser medium.

  • While the layer of air higher up in the sky forms the rarer medium.

  • Now, when the light of a star enters our atmosphere and passes from one medium to another.

  • Atmospheric refraction takes place and the light bends.

  • When this light reaches our eyes, our eyes trace it backward as a straight line.

  • Due to this, the light appears to come from a higher point.

  • Hence, the star seems to be higher than it actually is.

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B1 中級 美國腔

為什麼恆星看起來比實際高度高?| #aumsum (Why do stars seem higher than they actually are? | #aumsum)

  • 14 1
    AumSum 發佈於 2021 年 01 月 14 日
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