eli5: If the sun revolves around the galaxy, why do we still see the same constellation that was discovered by the Romans (probably 1000s of years ago). surely they should have been scattered by now due to revolution of the sun combined with the revolution of the earth around with sun

Question

Thnx to all, for the answer. I had a good time discussing and clearing my doubt.

In: 179

Answer 1

The “seven sisters” constellation used to have seven visible stars, 100,000 years ago. One is behind the other now, so there are only 6 visible at the moment. That’s the only constellation I’m aware of where the apparent distance of the stars is close enough to have possibly mattered. Whether the name is actually 100,000 years old or just a coincidence is uninown. https://arxiv.org/abs/2101.09170