The Pleiades star cluster,M45 昴星团M45 The Pleiades star cluster, M45, is one of the brightest star clusters visible in the northern hemisphere. It consists of many bright, hot stars that were all formed at the same time within a large cloud of interstellar dust and gas. The blue haze that accompanies them is due to very fine dust which still remains and preferentially reflects the blue light from the stars. 昴星团,M45,是北半球最亮的可见星团之一,拥有许多光亮而炽热的恒星,系同一时间在由尘埃和气体组成的巨大星际云内部形成。旁边的蓝色烟团是未散去的尘埃恰到好处地反射了恒星的蓝色光而形成的。 |