On: A Black Hole Threw a Star Out of the Milky Way Galaxy

[Tepix]

According to the paper it's moving at 1700km/s (see also: https://www.wolframalpha.com/input/?i=4+million+miles+per+ho... ). I prefer "20.4 light seconds per hour" :-) It's also 0.56% the speed of light.

The escape velocity of the Milky Way is 500km/s.

[wruza → Tepix]

I divided by 1.8 instead of multiplying by 1.6 and messed it all up. Got it only now, thanks for the correction!