Milkyway center Sagitarius A* black hole/Relativistic spacetime
- A Real-time High-quality Black Hole Shader by Eric Bruneton, 2020
- which cites: Gravitational Lensing by Spinning Black Holes in Astrophysics, and in the Movie Interstellar
GR background
https://dhruvp.netlify.com/2019/02/25/eigenvectors/ has an intuitive workup of slanted basis vectors https://youtu.be/UfThVvBWZxM GR field equations explained https://github.com/grtensor/grtensor
(NB: On Levi-Civita’s contribution to GR https://en.wikipedia.org/wiki/Metric_tensor)
The Black Hole Cosmology Hypothesis (Raj Pathria, developed by Smolin and Hawking) states that the big bang of our universe is a white hole complement to a black hole in another universe. This would be a convenient way of setting up the entire spacetime for Celestiary.
https://www.youtube.com/watch?v=jeRgFqbBM5E
https://news.ycombinator.com/item?id=40904498
https://github.com/mikegrudic/StarforgeFullPhysics
https://x.com/PMayrgundter/status/1810278804771709218
http://www.tapir.caltech.edu/~phopkins/Site/GIZMO.html