Satellite Images of the Sun
A lot of information about the Sun has originated from space probes or satellites that orbit Earth or are in orbit between the Sun and Earth. These probes were discussed in Chap. 2. With advances in computer technology, images provided by these satellites are now posted daily on the internet and these images are available for use by professional and amateur solar astronomers, thanks to institutions supported by NASA and ESA. This chapter specifically focuses on satellite images and how to interpret them. The idea is that amateurs can use these images to support their own observations and identify various features of the Sun’s active regions. Such images can also be used to view the Sun when it is cloudy here on Earth.