Brightening slightly from magnitude +0.7 to +0.5, Saturn appears twice as bright as the bluish star, Regulus, the brightest star of Leo, the Lion.是什么意思_Brightening slightly from magnitude +0.7 to +0.5, Saturn appears twice as bright as the bluish star, Regulus, the brightest star of Leo, the Lion.在线翻译_英语_读音_用法_例句