We were blown away by this stunning image, beautifully illuminating solar activity behind the moon. It was kindly supplied to us by Prof. Dr.-Ing. Adalbert Ding of the Institut für Technische Physik (ITP), and the Institut für Optik und Atomare Physik, Berlin.
Here’s what Adi said about this capture:-
The image is composed of 3 separate pictures:-
• The electron density (blueish, so called white light picture)
• The emission of Fe XIV (530.3nm: Fe 13+; green areas), depicting areas with temperatures around 1.8 MK
• The – NIR – emission of FeXI (789.2 nm: Fe 10+; red areas approx. 1 MK)
The reddish parts top and bottom of the moon are the magnetic north and south pole of the Sun, the field lines moving nearly linearly away from the Sun in these regions while the magnetic field lines connected to the Fe XIV seem to be mostly closed loops. The start of the solar wind can be easily seen moving away in different directions.
Picture credit: © S. Habbal, M. Druckmueller, J. Judson, A. Ding and the solar Sherpas