Question:

Is it scientifically proven that the sun has the same temperature consistency all the way around?

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Could there be spots/sides of the sun which are hotter than others?

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  1. As you've already heard - there are sun spot from time to time. Actually they go in cycles.

    Sunspots tend to be ~1000 K cooler than the rest of the surface.

    And then there's granulation - so regions that are about 1000km across have hotter centers and cooler rims, and they are all over the surface.

    But both the spots and the granules are small compared to the whole surface of the sun. And it certainly isn't cooler on one side than the other. Remember that the sun spins around in about 25-30 days (actually equator spins faster than poles), and we orbit it, so we get to see all sides of the sun.


  2. Yes, some spots are hotter than others.

  3. Yes, there are spots on the sun that are hotter and cooler than average.

    The cooler ones are called, oddly enough, "sunspots".

    The hotter ones are called solar flares.

  4. No, the sun doesn't have a constant temperature over the entire surface.  And yes, indeed, some areas of the sun are hotter than others. Sunspots, for example, are much cooler than the surrounding surface, which is why they appear darker.  

  5. no, it is not even all the way around.  there are darker spots called "sunspots." they are cooler than the surrounding area.

    take a look at this picture.

    http://www.astronomycast.com/wp-content/...

    hope this helps!

  6. All the stuff about flares and sunspots is good.

    I just want to add this:

    In theory, the equatorial region of the Sun should be a tiny bit cooler than the polar region.

    That is because the equator (turning around at a faster speed) is slightly lifted by the centrifugal force.

    However, our Sun is a slow rotator, so that this effect would be difficult to measure.

    A fast rotator (like Vega) will have a much cooler equatorial region, because it is lifted quite a bit by the centrifugal force.

    In the case of Vega, it took a while to notice, because its axis of rotation is pointing towards us (it is seen "pole on").

    But there are stars that are rotating so fast that the surface, at the equator, is approaching escape velocity.  In such stars big differences in temperature have been measured between the equator and the polar region (hotter at the poles).

  7. My son sometimes has a hot head and cold feet or visa versa. So I would think the answer is no - not the same temp all the way around.

  8. nope

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