Not a supernova remnant

Generated by this code with seed value 36, which isn't quite enough information to reconstruct it unless your rand() function works the same way as Visual Studio.NET's.

There is still an awful lot of wonder left in even little corners of maths. I cannot say I expected this; so many other seed values gave masses of spiky lines intersecting incomprehensibly. I suppose I need to write the code I was planning, which lets me explore the 18-dimensional parameter space interactively.