• Active Region 8210: location of intense magnetic activity in the solar atmosphere

• Use the photospheric data to develop the 3D magnetic structure of the active region

• To understand the relationship between solar activity on the photosphere and solar activity in the corona

Left: Full disk image of the sun taken by the EIT onboard SOHO at 28.4 nm (Iron XV). AR8210 is the large, bright area just south-west of the center of the image.

Below: EIT/SOHO images of AR8210 taken at 30.4 (Helium II), 17.1 (Iron IX/X), and 19.5 nm (Iron XII). (450x650 arcseconds)