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Solar Week - Ask a Question » Archives of previous runs of Solar Week » 2006 October 02-06 » Sunspots » Spots

Spots

Last post 10-02-2006 12:37 PM by Terry Kucera. 1 replies.
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  • 10-02-2006 8:26 AM

    Spots

    Reply Contact
    Mark (dia)

    Why is the core of a sunspots much darker than it's outer portion? Is it cooler there, more than the outer part?

  • 10-02-2006 12:37 PM In reply to

    • Terry Kucera
    • Top 10 Contributor
    • Joined on 02-27-2005
    • NASA/GSFC, Greenbelt, MD, USA
    • Posts 165

    Re: Spots

    Reply Contact
    Hi Mark,
    Yes, that is right -  it is even cooler in the center. That is where the magnetic field is the strongest. The strong magnetic field keeps the warm material from deeper in the Sun from coming up to the surface in that spot.

    Terry
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