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Stars' rotational velocity

  1. Aug 11, 2011 #1
    The Earth's rotational velocity at the Equator is 1,674.4 km/h or 465.1 m/s. The stars at the equator rotate at that same rate taking in account Precession at that particular time of the year and the longitude & latitude they are viewed from. Do the stars at the poles rotate faster then at the equator also depending the longitude & latitude they are viewed from?
  2. jcsd
  3. Aug 11, 2011 #2


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    No. Another way of looking at it by imagining the sky is rotating around the earth instead. The stars near the poles move much slower in apparent velocity than the ones near the equator do.
  4. Aug 11, 2011 #3


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    No, be careful. It makes no sense to compare the linear rates (the stars don't move at 1674 km/h). It's the angular rate (of about 15 degrees/hr) that is the same.
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