BH Crucis
... that the star BH Crucis has become redder and (on average) brighter since it was discovered in 1969?
... that the star <b id="mwAVI"><a href="./BH_Crucis" id="mwAVM" rel="mw:WikiLink" title="BH Crucis">BH Crucis</a></b> has become redder and (on average) brighter since it was discovered in 1969?