参宿一与火焰星云
2021年04月12日 Alnitak and the Flame Nebula Image Credit & Copyright: Team ARO Explanation: What lights up the Flame Nebula? Fifteen hundred light years away towards the constellation of Orion lies a nebula which, from its glow and dark dust lanes, appears, on the left, like a billowing fire. But fire, the rapid acquisition of oxygen, is not what makes thi...