I have an 10th main topic in development but there is just not enough data found online to provide a complete conjecture, yet.
9) link-pdf Sphere of Stars Conjecture
(01/10/2020 - updated 04/14/2020)
Item (10) is a conjecture on the behaviors of a sphere of stars which includes a globular cluster and an elliptical galaxy. These spheres of their different sizes are not fully explained in cosmology. The lack of observational data for these distant objects results in a conjecture awaiting more data.
As more data are revealed this conjecture will be updated.
. . .
Item (10) applies to both cosmologies PC and EU because neither has a detailed description for the spheres of stars..