4 ms·

kinda unbelievable..no sun spots or any other form of solar activity

• mturmon 16y ago
  On that day, there were no visible sunspots: http://soi.stanford.edu/production/gif_images/intensitygrams/2010/May//MDI_int_2010.05.16_06:24.rotated.gif http://soi.stanford.edu/production/gif_images/intensitygrams... But, a week later when it made APOD, there was a big one: http://soi.stanford.edu/production/gif_images/intensitygrams/2010/May//MDI_int_2010.05.23_11:12.rotated.gif http://soi.stanford.edu/production/gif_images/intensitygrams... Here's a very active day from a peak in the last cycle: http://soi.stanford.edu/production/gif_images/intensitygrams/2001/September//MDI_int_2001.09.23_03:12.gif http://soi.stanford.edu/production/gif_images/intensitygrams... These are not true white-light images, but they are approximations. Also, their contrast has been enhanced.