If I understand what your asking, how to get the sun to produce a multi-pointed sunburst or star flare like that (Fraunhofer diffraction), its relatively simple: stop down your aperture to the point where it is no longer circular, but a polygonal. Using a fairly small aperture will produce a star flare around most light sources that are not too small.
The nature of the star flare will depend on the type of diaphragm you have in your camera. Not all diaphragms are the same, and range from having as few as 5 blades to as many as 12 in some extreme cases. Different star patterns will be produced depending on the number of corners (even vs. odd).
As for the total effect in the image you posted excluding the flaring of the sun, it looks like the dark shadows of the photo were bumped up a fair bit in post processing (hence the noisiness of the shadowed side of the boats in the foreground). I'm also guessing that saturation was bumped up a fair bit, which is probably what makes the orange so brilliant.