minor typo
(where assuming these are near the centre of the galaxy, then 'radius' is effectively the distance from us to the star)
should have said - radius is effectively the distance from us to the galactic centre.
Space/Science » in reply to I get ...
(where assuming these are near the centre of the galaxy, then 'radius' is effectively the distance from us to the star)
should have said - radius is effectively the distance from us to the galactic centre.