21:2421:24, 18 September 2017diffhist+1
3C 48
It might have been the first one to be identified with an optical counterpart (not checked) but the second for which the redshift could be identified and spectral lines identified with elements.
21:2421:24, 18 September 2017diffhist+1
3C 48
It might have been the first one to be identified with an optical counterpart (not checked) but the second for which the redshift could be identified and spectral lines identified with elements.