【摘要】 本文作者在对αＰｅｒ疏散星团的观测工作中发现了一颗罕见的早型亮耀星，从对其光谱观测的结果，可以确定它为－Ａ５型星．这与传统恒星耀发理论是相悖的。更多还原

【Abstract】 An extremely rare early type bright flare star was discovered by using Schmidt Telescope at Xinglong Station of Beijing Astronomical Observatory.It was identified as BD+47 819, near the open cluster α Per. From its spectroscopicly observational result, we can confirm that it is an A5 type star. Its nature is very different from the traditional theory of stellar flare.更多还原