The origin of Globular clusters and Elliptical Galaxies without an axial structure like Herbig Haro spiral galaxies have.

Cassiopeia A seems to be a lonely globular star explosion (without two Herbig Haro black holes like our sun) into a black hole which is fleeing away, accelerated by its plasma tail.
Such a nebula is assumed to be the start of of an elliptic system in the universe.
Such globular systems are known as Star clusters and elliptical galaxies. If this is confirmed, then it will be an extra support for the universal structure explanation of galaxy groups, as a whole, with elliptical galaxies in the middle and Spiral galaxies at the outside of the galaxy groups.

 

The contrasting axial based Herbig Haro system of planetary nebula, planetary star systems and spiral galaxies.

For the Helix Nebula i said in Q-FFF Theory that former starspot black holes represent the well known ring of knots and related spokes, interpreted as plasma tails pushing the knots outside.

See Meaburn: https://ui.adsabs.harvard.edu/abs/2005MNRAS.360..963M/abstract

It is suggested that the clumpy nature of much of the material could play a part in creating the radial `spokes' shown here to be apparently present close to the central star. These `spokes' could in fact be the persistent tails of cometary globules whose heads have now completely photoevaporated.