There are plenty of astronomers working in the southern hemisphere from Chile to Australia. I think they would notice if there were multiple celestial poles and their star maps were wrong.
The Flat Earth Society has found that when you compare starmaps from Chile and starmaps from Australia, the constellations are different.
I have friends who live in Chile and Australia.
If Tom would like to give me copies of these star maps my friends can corroborate the claim that "the constellations are different".
This would provide independent evidence to support the "multiple, counter-rotating Southern Hemidisc star systems" thoery.
Which would be of great benefit to Flat Earth science, no doubt!
So Tom: are you game/up for this little experiment?
Please sign me up for this experiment. Since I live 4.5 degrees North of the Equator, I can see the whole sky, except for the stars with declination between -90 and -84. This means I can see every constellation except Octans.
And Tom Bishop can also help himself, with his two computer-guided telescopes. Without moving from his place of residence, somewhere in California if I remember correctly, he can see the whole sky except for declinations from -90 to -56 degrees. That is most of the Southern sky, more than enough to see if stars appear to move as if they are placed in a giant sphere, centered on Earth, or not.
There is no place on Earth that can only see constellations that Tom Bishop cannot see. If he shows us the stellar charts he has, we can compare them with the "official" charts and with direct observations made from different parts of the world.