早型星

ζAur双星系统是一类特殊双星系统，由一颗晚型红巨星和一颗早型热星组成。红巨星有强大的星风物质损失，并在双星系统外部形成一向外膨胀的气壳；

The ζ Aur-type binary system consists of a hot early type star and a late type red giant or rad supergiant with strong stellar wind , which forms an expanding gas shell surrounding the binary system .

共生星双星是一颗有强大星风物质损失的红巨星与一颗早型热星组成的特殊双星系统。

The symbiotic binary is a special system , consisting of a hot early type star and a cool late type supergiant with strong stellar wind , which forms an expanding envelope .

具有大红外色余的早型发射线星

Early-Type Emission-Line Stars with Large Infrared Excesses

早型O，B型星有扩散运动和自转运动，而晚型发射线星则没有明显的扩散或收缩的整体运动。

The expansion and rotation of the early O , B type stars have been found , but the similar motions are not discernible for the late-type stars .

其次Be星作为一类早型带有包层天体，研究Be星包层的性质，对研究原恒星包层性质和进一步了解早型星其它光谱型的性质是非常重要的；

Second , it is important to study the envelopes of Be stars , as it is also a breakthrough to study envelopes of proto type stars and other early type stars ;