Why is Earth's spin axis is 23.5-degree tilt ?

Subject: Why is Earth's spin axis is 23.5-degree tilt ?

Date: Sun Sep 30 16:32:37 2001
Posted by Siren
Grade level: nonaligned School: No school entered.
City: Taipei State/Province: No state entered. Country: Taiwan, R.O.C.
Area of science: Astronomy
ID: 1001881957.As

Message:


Recently my student asked me some questions about Astronomy,
And there's one question that I really don't know the answer,
We all know that the rotational pole of Earth is slightly tilted for 23.5-
degree,
But why is that ?
Does it relate with Polaris ?
Would you please tell me the answer ?
Thanks a lot !

Re: Why is Earth's spin axis is 23.5-degree tilt ?

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