8/18 In the same field with these are seen many other stars. The former is quadruple, the components being yellow, bluish, pale blue, and blue. It is not, however, in these respects that these stars are chiefly interesting, but for their variability. The variability of [gamma] has not indeed been fully established, though it is certain that, having once been less bright, [gamma] is now considerably brighter than [beta]. The change, however, may be due to the variation of [beta] alone. |