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Last Post 3/1/2007 4:09 PM by Isabel Hawkins

ancient observations

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Anonymous

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2/28/2007 6:13 PM
Jessia L (da) How come the Chinese claim to have observed sunspots before galileo? I thought galileo was the first to use a telesope, how then could the chinese have seen or studied them?

Terry Kucera

Basic Member

Posts:328

3/1/2007 6:58 AM
Hi Jessia, It is possible to observe very large sunspots without a telescope. I am not an expert at this, but I think Chinese astrologers would observe the Sun right at sunset when it is hazy and not so bright. There is more about it here Windows to the Universe: History of Sunspot Observations http://www.windows.ucar.e...sunspot_history.html cheers, Terry

Isabel Hawkins

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Posts:42

3/1/2007 4:09 PM
Jessia, The Chinese also used thin jade disks to observe the Sun, to dim the brilliance of the photosphere and be able to see sunspots. Isabel