This is the end result after reading this article:
Let's start with a blank white image:
Make sure that you set black (or the sunburst color of your choice) as the background color:
Next we are going to use the Blinds filter to fill the image with black vertical lines - Go to Filters...Distorts...Blinds and set the orientation to Vertical, Displacement to 62 and Number of Segments to 12:
The last step is to use the Polar Coordinate filter - Go to Filters...Distorts...Polar Coordinates and leave everything default:
