[ad_1] Weather Eye with John Maunder A sunspot is a relatively dark and clearly defined region on the solar disk – marked by a shadow (dark zone) which is 2000 degrees Celsius …
Read More »SunLive – sunspots and Maunder's minimum revisited
[ad_1] Weather Eye with John Maunder A sunspot is a relatively dark and clearly defined region on the solar disk – marked by a shadow (dark zone) which is 2000 degrees Celsius …
Read More »