The prospect may also offer some amazing images that do not correspond to reality.
An example is the red rectangle nebula known as HD 44179 (for relatives). This nebula is not that it is rectangular but is created by a binary star system in the central part there is a ring or torus super dense gas that requires materials that are ejected from one of the two stars to “exit” that way as if from spherical shape (they do) collide with the ring, making it denser and serious remaining ejecta offering this beautiful way.
Whoever has this form of output it is achieved by simulations. That is, we have simulated the expulsion of gas through a toroid and has resulted in this way being, the main indication corners of the cones in the image are more illuminated rays. Nice!.
Let everything is a simple matter of perspective.