Starbursts differ along at least the following dimensions:
Size: The first thing to notice is that starbursts differ in terms of size. Some people have starbursts that are bigger than others. We need to know whether your starbursts are relatively smaller, or relatively larger, for example. Would they take up the entire picture? Would they be half as high as the picture?
Transparency: If you compare Starbursts 2 and 3, you can see that some starbursts are smaller and denser, whereas others are bigger, but more transparent. We need to know whether your starbursts are pretty solid in the middle, or more transparent.
Shape: If you compare Starbursts 5 and 6, you can see that starbursts aren't necessarily circular... Sometimes the starbursts are just more high than wide. But sometimes, as shown in 5 and 6, the rays tend to go off more in one direction than another. Starbursts 5 and 6 also differ in terms of their size and transparency.
Fine versus Thick Rays: In contrast to the top picture, the bottom picture shows that some starbursts do not consist of a fan of fine filaments, but instead are best described as a huge twinkle. If the arms shoot off in only a few directions, patients may refer to these as 'flares,' or laser rays.
Degree of Internal Halo: Some starbusts have a large internal halo, whereas others consist mainly of rays.
See Also: Starburst Simulator