Sunspot complex AR1520 and prominences in Ha
Date/Time: July 13, 2012 2:55PM PDT
Location: My home, Victoria, BC, Canada
There were several dozen small prominences visible scattered around the Sun's perimeter, and some were spewing plasma into space, however the highlight was the huge sunspot complex AR1520 on the Sun's surface (in this photo). This sunspot has a delta-class magnetic field which generated an X-class CME towards Earth. Another significant sunspot is 1521 to the right of 1520, which also shows lots of detail (not visible in this photo).
Equipment: Hutech-modified Canon T2i dSLR a-focal through a 2.5x Powermate, IDAS VLC filter, & Lunt LS60THa + LS50FHa solar telescope mounted on an HEQ5 tracking mount.
Processing:
Adobe Photoshop Elements 10 - Crop, reduce colour depth to 8 bit, apply Clarity edge detection.