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> Tychonic. Geo-heliocentric. Sun and Moon circle the Earth; everything else circles the Sun. Interesting. Isn’t that (disregarding the Galaxy) functionally th
by ralfd 2y ago
> Tychonic. Geo-heliocentric. Sun and Moon circle the Earth; everything else circles the Sun.
Interesting. Isn’t that (disregarding the Galaxy) functionally the same as a heliocentric system?
- mcmoor 2y agoThat Heraclidean one also seems interesting. At the distance of Uranus or Neptune, it makes little difference whether it actually orbit Sun or Earth