The dust is likely formed as the swollen atmosphere of the supergiant sheds material into space, a final phase in the evolution of a massive star.
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2. 在明亮的超巨星参宿七的照耀下，女巫头星云的尾部就像一阵烟，穿过700光年远的波江座。
Basking in the glow of the bright supergiant star Rigel, the Witch Head Nebula trails like a puff of smoke through the Eridanus constellation about 700 light years away.
Fans in Britain are keen to see how the former Premiership star performs in his new colours and are preparing to descend on Murrayfield to see the French international in action.
Fans in Britain are keen to see how the former Premiership star performs in his new colours and are preparing to descend on Murrayfield to see the French international in action.
