Solar Week - Ask a Question

Come here during Solar Week (next one: March 22-26, 2021) to interact. To post a question, click on your area of interest from the topics below, and then click on the "Ask New Question" button. Or EMAIL or tweet or plant in Answer Garden your question about the Sun or life as a scientist to us -- and watch for it to appear here.  You can also visit our FAQs (frequently asked questions). In between Solar Weeks in October and March, you can view all the archives here.

PrevPrev Go to previous topic
NextNext Go to next topic
Last Post 3/18/2013 10:20 AM by  Dawn Myers
 1 Replies
You are not authorized to post a reply.
Author Messages



3/18/2013 7:11 AM

    Virginia (NC)

    How come we see a steady stream of sunspots near the equator, north or south of, but never none near the Sun's poles?

    Dawn Myers

    Basic Member

    Basic Member

    3/18/2013 10:20 AM
    Terry wrote a great answer to this for a previous Solar Week. The short answer is we don't know. We know that sunspots go through an 11 year cycle, they fist start appearing at about 30 degrees latitude and as the cycle near completion they end up all falling along the equator. This forms what we call a butterfly diagram, but why they don't appear at the poles is not fully understood, but one of the questions we are trying to answer. More about the butterfly diagram can be found here http://earthobservatory.n...arMax/solarmax_3.php
    You are not authorized to post a reply.

    Twitter Feed

    Scientist Leaderboard

    Name # of replies
    Multiverse skin is based on Greytness by Adammer