SDO
21st February 2012, 17:40
http://3.bp.blogspot.com/-INHimHudNC4/T0PUSLV5DmI/AAAAAAAAAMI/Un4TSD0l0-E/s200/aia_171_transit_21_FEB_2012.png (http://3.bp.blogspot.com/-INHimHudNC4/T0PUSLV5DmI/AAAAAAAAAMI/Un4TSD0l0-E/s1600/aia_171_transit_21_FEB_2012.png)Here is an image of the Sun as the Moon moves off the limb at 1427 UTC (0947 am ET) today. It was a fairly shallow transit, but the Moon covered a bright active region. This caused a dip in the EVE output and may allow scientists to calibrate the energy emitted by the active region.
https://blogger.googleusercontent.com/tracker/6369594138980582994-6558329834681026224?l=sdoisgo.blogspot.com
More... (http://sdoisgo.blogspot.com/2012/02/lunar-transit-has-passed.html)
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More... (http://sdoisgo.blogspot.com/2012/02/lunar-transit-has-passed.html)