The sun in UV light. A 102/714 mm lens telescope and a Lunt Systems Ca-K filter were used for photography. The image shows the Sun's active areas (white) and sunspots. In addition, some supergranulation can be distinguished from the image.
The camera is an ASI 178 MM (monochromatic) and this image is a mosaic of two separate images I made from ser video by stacking with AutoStakkert. In the finish, color has also been added.