3 ms·
it's angular motion that you care about, so it could still be a long time. We can put some hard lower bounds on how close it could be, though. For example, it
by dnautics 6y ago
it's angular motion that you care about, so it could still be a long time. We can put some hard lower bounds on how close it could be, though. For example, it's probably not a wormhole mouth within a few ly of our solar system.