craigiest t1_j4lccoh wrote on January 16, 2023 at 3:13 PM

Reply to comment by Ordoshsen in How do we know that we are in a certain place inside our galaxy? and how do we know how big it is just by looking at the cross section we are in? by friday_panda

Are you just nitpicking details or are you arguing that the answerer is wrong in principle and that we don’t now the size of the Galaxy or our place in it?

Ordoshsen t1_j4pebpg wrote on January 17, 2023 at 9:25 AM

We do know the size. And I was wrong with how well we can measure the parallax. But other than the parallax the explanation was still mostly incorrect as far as I can tell.