7 ms·
I'm not being snotty. What is the fixed point from which they are measuring the speed? Is the object moving 1M mph relative to earth? The black hole at the cent
by _justinfunk 2y ago
I'm not being snotty. What is the fixed point from which they are measuring the speed? Is the object moving 1M mph relative to earth? The black hole at the center of Milky Way?
- ianburrell 2y agoThe paper says the Galactic rest frame.
- gambiting 2y ago>> What is the fixed point from which they are measuring the speed? Rest of the milky way galaxy, presumably, given that it talks about escape velocity from it.