January 25th, 2006
More Sun Fun
Posted by
Chris in
Uncategorized
A wonderful sequence of images from Pete Lawrence obtained as part of the Sun program filming yesterday. Using a hydrogen-alpha filter it was possible to view the gas 2000km or so above the visible surface of the Sun (the ‘photosphere’) and see the kind of prominences only normally on show at an eclipse.
We also got to use a calcium filter provided by John Adair, which was a new experience for me and showed sunspot groups in the process of changing and evolving.
