Recently I have asked this question:

Do all spherically symmetric stellar systems have zero anisotropy?

I have also asked some other questions in this topic, ie

Poisson's equation-like formula in axis-symmetric Galactic potential in terms of Oort constants

How to transform continuity equation from physical to comoving coordinates (Cosmology)

How to get mean anomaly as a function of eccentric anomaly

Is there a name for the point at the intersection of the major axis and a line through a given point in an ellipse parallel with semi latus rectum?

Parametrized solution for motion of radially infalling object

Deriving the first moment of Collisionless Boltzmann Equation in Spherical Polar Coordinates

How do I decide if I post my question here with the [mathematical-astronomy] tag, or just use astronomy.stackexchange.com?

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    $\begingroup$ Is your question primarily about the mathematics? or the astronomy? If it is primarily about the underlying mathematics, ask here. Otherwise, ask on Astronomy. $\endgroup$
    – Xander Henderson Mod
    May 6, 2021 at 19:14
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    $\begingroup$ Since you're asking what is on-topic here, I have added (allowed-questions). I have also added (tagging) - since you mentioned one particular tag - but I am less sure whether (tagging) really belongs here or not. Of course, you (and other users) can edit the tags further, if needed. $\endgroup$ May 6, 2021 at 21:17
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    $\begingroup$ hmm you could perhaps say what's a "a spherically symmetric stellar system" mathematically in your first question. $\endgroup$ May 6, 2021 at 21:33


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